According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008 Chevrolet Silverado 1500 has 15 documented known issues, with 5 rated critical. The most serious are 4L60E Automatic Transmission 3-4 Clutch Pack and Sun Shell Failure (Slipping, Loss of 3rd/4th Gear) ($1,500-$2,800 repair), Windshield Washer Fluid Heater Module Shorting and Underhood Fire Risk ($0-$400 repair), Engine Oil Cooler Line Failure Causing Rapid Oil Loss at Crimped Hose Fittings ($250-$900 repair), P0700 — Transmission Control System Malfunction from Failed 6L80 TEHCM (or 4L60E Shift Solenoid) ($300-$1,600 repair) and Brake / Fuel Line Corrosion Failure (Galvanized Steel Lines, Salt-Belt) ($300-$1,200 repair). Across all issues with published estimates, repair costs range from $20 to $5,000. DIY maintenance guides at au7o.io.
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
Campaign #21V11500025/02/2021
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
Campaign #19V88800012/12/2019
SEAT BELTS
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
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What are the most common Chevrolet Silverado 1500 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008 Chevrolet Silverado 1500 has 15 documented issues. The most frequently reported are: 4L60E Automatic Transmission 3-4 Clutch Pack and Sun Shell Failure (Slipping, Loss of 3rd/4th Gear), Windshield Washer Fluid Heater Module Shorting and Underhood Fire Risk, Engine Oil Cooler Line Failure Causing Rapid Oil Loss at Crimped Hose Fittings. Of these, 5 are rated critical and should be addressed promptly.
Is the Chevrolet Silverado 1500 reliable?
The 2008 Chevrolet Silverado 1500 has 15 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 5 issues are rated critical: 4L60E Automatic Transmission 3-4 Clutch Pack and Sun Shell Failure (Slipping, Loss of 3rd/4th Gear) and Windshield Washer Fluid Heater Module Shorting and Underhood Fire Risk and Engine Oil Cooler Line Failure Causing Rapid Oil Loss at Crimped Hose Fittings and P0700 — Transmission Control System Malfunction from Failed 6L80 TEHCM (or 4L60E Shift Solenoid) and Brake / Fuel Line Corrosion Failure (Galvanized Steel Lines, Salt-Belt). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Chevrolet Silverado 1500 problems?
Repair costs for known Chevrolet Silverado 1500 issues range from $0 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 4L60E Automatic Transmission 3-4 Clutch Pack and Sun Shell Failure (Slipping, Loss of 3rd/4th Gear), typically costs $1,500-$2,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1994-2010 Chevrolet Silverado 1500 4L60E Automatic Transmission 3-4 Clutch Pack and Sun Shell Failure (Slipping, Loss of 3rd/4th Gear)?
The 4L60E 4-speed automatic behind the half-ton Silverado is notorious for wearing out its 3-4 clutch pack and cracking the input 'sun shell' (reaction sun gear shell) as mileage climbs. Owners report the truck suddenly loses 3rd and 4th gear (revs up but won't pull) while revers… Repairs typically run $1,500-$2,800. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
Filter:
When Issues Typically Appear
Windshield Washer Fluid Heater Module Shorting and Underhood Fire Risk
0K-150K
Intermediate Steering Shaft Knock/Clunk Over Bumps and During Low-Speed Turns
20K-120K
Blend Door / HVAC Actuator Failure Causing Clicking Dash Noise and Incorrect Airflow Temperature
50K-180K
Transfer Case Encoder Motor / Position Sensor Failure Causing Stuck 4WD or Service 4WD Message
60K-180K
Engine Oil Cooler Line Failure Causing Rapid Oil Loss at Crimped Hose Fittings
70K-200K
Front Wheel Hub Bearing Failure Triggering ABS Warning and Growling Noise
70K-180K
050K100K150K200K mi
On the 1994-2010 Chevrolet Silverado 1500, the 4L60E 4-speed automatic behind the half-ton Silverado is notorious for wearing out its 3-4 clutch pack and cracking the input 'sun shell' (reaction sun gear shell) as mileage climbs. Owners report the truck suddenly loses 3rd and 4th gear (revs up but won't pull) while reverse and low gears still work, or a hard grinding/no-move with a fractured sun shell. The 3-4 clutch is the known weak point and often burns up first; the larger input drum on 2004-and-up units also likes to crack internally. This is one of the single most-searched failures for these trucks.
Engine revs but truck won't accelerate in 3rd/4th (slipping)
Sudden loss of 3rd and 4th gear, still has 1st/2nd/reverse
Harsh or delayed 1-2 / 2-3 shifts
Grinding or clunk then no forward movement (broken sun shell)
Burnt-smelling, dark transmission fluid
Check engine light with transmission codes
How to Fix
Confirm with a scan for gear-ratio/slip codes and a pressure test before condemning the unit. Fix is a transmission rebuild or reman: replace the 3-4 clutch pack, install a hardened 4L60E sun shell (aftermarket beast/heavy-duty shell over the stamped OEM piece), fresh bands/steels, and rebuild or replace the valve body. Adding an auxiliary transmission cooler and shortening fluid-change intervals to ~30k miles greatly extends life. Reman units are widely available; a full-service rebuild with upgraded shell is the durable fix.
Medium ConfidenceVerified0 reportsReviewed Jul 2026
On the 2007-2019 Chevrolet Silverado 1500, p0700 is not a specific fault by itself — it is an umbrella/MIL-request code the ECM stores whenever the transmission control module (TCM) detects an internal transmission problem and asks the ECM to turn on the check-engine light. On the Silverado 1500 it almost always appears alongside more specific companion codes, and the underlying failure follows two dominant, well-documented patterns depending on the transmission. On trucks with the 6L80 six-speed automatic (2007-onward 5.3L and 6.2L V8 models), the internal TEHCM (Transmission Electro-Hydraulic Control Module — GM's combined valve body, solenoids, pressure switches, and TCM in a single pan-mounted unit) develops internal circuit-board/solenoid faults from heat and fluid degradation, throwing P0700 together with codes like P0796, P0777, P0842, or P0973 and dropping the truck into limp mode. On older/base trucks with the 4L60E four-speed (4.3L/4.8L), the same P0700 is typically triggered by a failed shift solenoid (P0753/P0758) or a faulty internal mode switch. Because P0700 is a stored 'passenger' code, a scan tool that can talk to the TCM (not just a basic reader) is required to pull the specific sub-code that identifies the actual failed component.
Transmission stuck in limp mode / limited to one gear (often 3rd or 5th)
Harsh or delayed shifts
Transmission fails to shift or slips
Torque converter clutch not locking up / shudder
No movement or won't shift out of park in severe cases
How to Fix
Do NOT replace parts off the P0700 alone. Use a bidirectional/TCM-capable scan tool to read the companion codes stored in the transmission controller and verify transmission fluid level and condition first (low or burnt DEXRON-VI fluid alone can trigger the chain). For 6L80 trucks, a failed internal TEHCM is confirmed by multiple simultaneous solenoid/pressure codes; the fix is to drop the pan and replace the TEHCM, which MUST then be programmed to the vehicle's VIN with GM calibration files before the truck will start or shift correctly (ordering the OEM unit by the last 8 VIN digits can yield a plug-and-play unit needing no fast-adapt relearn). For 4L60E trucks, replace the specific failed shift solenoid or internal mode switch identified by the sub-code. Repair the wiring/connectors to the TCM if corrosion is found. On very new 2023-2025 Silverado 1500s, P0700 paired with P0747 is a known valve-body defect covered by Safety Recall N242454440 / Special Coverage N242454441 — check the VIN with a dealer for a free repair.
On the 2000-2013 Chevrolet Silverado 1500, silverado V8 trucks commonly develop leaks at the crimped sections of the engine oil cooler lines or at the quick-connect fittings near the radiator/oil cooler adapter. Owners often report sudden puddles of oil, oil sprayed under the truck, or a rapid drop in oil pressure with little warning. This is widely documented in owner communities and service literature because the failure can dump a large amount of oil very quickly and risk engine damage.
Inspect both cooler lines for wetness at the crimps, seepage at the fittings, and damaged retaining clips. The proper repair is replacement of the leaking lines and, if needed, the adapter fittings/seals with updated parts; many technicians replace both lines together due to age. After repair, verify oil level, clean the underside, and recheck for leaks under operating temperature and pressure.
On the 2003-2010 Chevrolet Silverado 1500, the engine oil pressure sensor/sending unit on LS truck V8s commonly fails or gets its screen clogged with sludge, sending the dash gauge bouncing, pegging high, dropping to zero, or reading falsely low—often with an 'oil pressure' warning even though actual pressure is fine. GM added a screen around the sensor mid-2007 that made the debris problem worse. A leading, cheap-to-fix false-alarm complaint that scares owners into thinking the pump failed.
Verify real oil pressure with a mechanical gauge first. If mechanical pressure is good, replace the oil pressure sensor/sending unit (GM 12621649 is the common LS sensor—verify fitment for your engine/year) and clean any debris from the screen/passage. If the gauge itself doesn't respond when the sensor is unplugged, the instrument-cluster stepper motor is the culprit instead. Don't replace the oil pump on a bad-reading gauge alone.
Medium ConfidenceVerified0 reportsReviewed Jul 2026
On the 2007-2009 Chevrolet Silverado 1500, some GMT900 Silverado 1500 trucks equipped with the heated windshield washer fluid system experienced internal shorts in the washer heater module. Owners reported smoke, melting components, dead batteries, and in some cases underhood fires even when the truck was parked. GM issued a safety recall for the heated washer module due to the fire risk.
Common Symptoms
burning smell from engine bay
smoke from under hood
washer heater inoperative
battery drain
melted wiring or connector near washer heater module
blown fuse
How to Fix
Confirm whether the truck is equipped with the heated washer system and check recall completion status by VIN. The recall remedy involved disabling or replacing the module depending on campaign stage; any signs of melted wiring, blown fuses, or heat damage should be repaired before returning the vehicle to service. If the system remains active outside recall repair, disconnecting the module until proper repair is completed is prudent.
On the 2007-2014 Chevrolet Silverado 1500, the original galvanized-steel brake (and fuel) lines on these trucks lack the modern nylon/PVF anti-corrosion coating, so in cold-weather/road-salt states the lines rust from the outside in and rupture. A brake-line burst causes sudden, often warning-light-free loss of brake pressure and a long/soft pedal; NHTSA logged hundreds of complaints and opened (then closed without recall) an investigation into salt-belt GM trucks. GM addressed it with a TSB and a pre-formed replacement-line kit rather than a recall.
Inspect all underbody brake and fuel lines for surface rust/flaking, especially over the rear axle and along the frame rails. Replace corroded sections with GM's pre-formed brake-line kit (TSB 13-05-22-001) or aftermarket coated/stainless lines; bleed the system afterward. Proactively replace lines as a set in salt-belt trucks before failure, and wash the underbody regularly through winter. Any soft/sinking pedal or visible fluid leak should be treated as do-not-drive.
On the 2007-2024 Chevrolet Silverado 1500, the full-size Silverado 1500 is one of the most frequently targeted vehicles in the U.S. for catalytic converter theft. Its high ground clearance and underbody-mounted, easily reached converters let thieves cut them out in seconds, often in broad daylight, and lifted trucks are even easier to get under. Owners discover the theft by a sudden extremely loud, raspy exhaust on startup, a check-engine light, and reduced performance. Replacement of OEM converters plus the O2 sensors and pipe is expensive, and repeat thefts are common because nothing about the factory design deters re-targeting. This is a high-search, high-demand ownership problem rather than a manufacturing defect, but it is specific and well documented for this model.
Extremely loud, deep roaring exhaust noise on startup
Visible missing converter / cut pipe under the truck
Check engine light (catalyst efficiency) after the theft
Reduced power and rough running
Strong exhaust smell entering the cabin
How to Fix
Replace the stolen converter(s) — OEM or CARB-compliant aftermarket — along with any damaged O2 sensors and exhaust pipe sections, then add theft deterrents: a welded catalytic-converter shield/cage (e.g., CatClamp / model-specific plate), etched/engraved converter ID, and parking in lit or secured areas. A tilt/vibration alarm can also help. Insurance comprehensive coverage often applies. Note: a separate 2019 emissions recall addressed an ECM that could fail to illuminate the malfunction-indicator light on a converter fault — unrelated to theft but worth checking by VIN.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 2007-2024 Chevrolet Silverado 1500, gM's small-block V8s (Gen III/IV LS and Gen V LT) in the Silverado 1500 are notorious for snapping exhaust manifold bolts. The steel bolts and the aluminum cylinder heads expand and contract at different rates through countless heat cycles, fatiguing the bolts until the heads snap off — usually the front and rear corner bolts. The resulting manifold-to-head gasket leak produces a loud 'exhaust tick' (often mistaken for a lifter) that is loudest on cold start, and the leak draws outside air past the upstream O2 sensor, frequently setting a false P0420 catalyst-efficiency code even with a good converter. Left alone it can also burn nearby wiring and worsen the leak.
Ticking/tapping exhaust noise, loudest on cold start
Tick that quiets as the engine warms up
Exhaust/sulfur smell near the engine
P0420 catalyst-efficiency code with an otherwise good converter
Soot or carbon tracks at the exhaust manifold flange
How to Fix
Inspect the manifold flanges for soot/leak tracks and the corner bolts for breakage. Repair is to extract the broken bolt shanks (often requires drilling/extractor or a slide-hammer style broken-bolt kit), replace the manifold gaskets, and reinstall with upgraded fasteners — ARP 134-1102 header bolts on Gen III/IV LS (4.8/5.3/6.0) or ARP 134-1104 on Gen V LT (5.3 L83 / 6.2 L86) — torqued in sequence with anti-seize. Re-evaluate any P0420 after the leak is sealed before condemning the catalytic converter or O2 sensors.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 2000-2013 Chevrolet Silverado 1500, silverado 1500 trucks commonly develop front hub bearing wear, especially on higher-mileage 4x4s and trucks used on rough roads or with oversized tires. Owners report a humming or growling noise that changes with speed and steering input, and because the wheel speed sensor is integrated into the hub assembly, ABS and traction control warnings may appear as the bearing deteriorates. Excessive play can eventually affect braking feel and tire wear.
Road-test to identify which side changes noise during lane shifts, then confirm by checking for roughness or play with the wheel off the ground and reviewing wheel speed sensor data. Replace the complete hub assembly rather than attempting to service the bearing separately. After installation, verify sensor connector condition and torque the axle nut and mounting bolts to specification to avoid premature repeat failure.
Owner tips & cautions
TipIf one hub has failed at high mileage, inspect the opposite side too; many owners end up replacing hubs in pairs.
On the 2000-2013 Chevrolet Silverado 1500, silverado owners across both GMT800 and early GMT900 generations frequently report a clunk or knock felt in the steering column/floor area, especially over small bumps or while turning into driveways. The issue is commonly traced to play or binding in the intermediate steering shaft splines or joints rather than a major steering gear failure. GM issued multiple service bulletins and revised shafts/lubrication procedures over the years.
Confirm the noise by isolating front suspension components and checking for movement in the intermediate shaft while rocking the steering wheel. Depending on wear level, the fix is either lubricating the shaft per GM procedure or replacing it with the updated part. If the clunk remains, inspect tie rods, rack/gear mounts, and lower column joints to rule out similar noises.
Owner tips & cautions
TipDo not assume every front-end clunk is the steering shaft; check sway bar links, tie rods, and ball joints before replacing parts.
On the 2000-2013 Chevrolet Silverado 1500, a frequent Silverado complaint is failure of the HVAC mode or blend door actuators, which causes repetitive clicking from behind the dash and leaves the system stuck on one vent mode or one temperature setting. Owners often notice one side blowing hot while the other stays cold, air stuck on defrost, or recirculation not functioning correctly. The small plastic gears inside the actuators wear or strip, and recalibration may not restore operation once gear damage occurs.
Use the HVAC self-recalibration procedure or disconnect the battery/HVAC fuse to see whether the actuator relearns; if the clicking returns, replace the failed actuator. Access varies by actuator location, with some easy under-dash replacements and others requiring more dash disassembly. After replacement, perform recalibration so the control head learns the new actuator limits.
Owner tips & cautions
TipRun the HVAC recalibration procedure after actuator replacement; skipping it can leave the new actuator out of range and clicking again.
On the 2007-2014 Chevrolet Silverado 1500, gMT900-generation Silverado 1500 trucks (and platform-mates Tahoe/Suburban/Avalanche/Sierra/Yukon/Escalade) are widely reported to develop long cracks and splits across the top of the dashboard pad, typically radiating from the passenger airbag seam, defroster vents, and the corners near the windshield. GM moved to a large one-piece molded dash for these years with no relief joints, and the plastic dries out and loses plasticizer under windshield heat and UV exposure, causing the surface to fracture. Owners commonly see it appear between 4 and 8 years of age, worse in hot/sunny climates. A class-action suit was filed and dismissed in 2019, and GM treats it as a cosmetic, non-warranty item, so owners pay out of pocket. Beyond appearance, owners raise concern about cracked plastic over the passenger airbag becoming projectiles or affecting deployment, though that has not been the subject of a recall.
Long cracks or splits across the top of the dashboard near the windshield
Cracks radiating from the passenger airbag seam or defroster vents
Pieces of dash plastic lifting or curling at the edges
Worsening rapidly after summer heat or in sunny climates
How to Fix
There is no recall or warranty coverage. Common remedies are: install a molded ABS/poly dash cap (overlay) bonded over the cracked pad, replace the full dashboard pad assembly, or fit a carpeted/molded dash cover. Dealers will not warranty it as it is classified cosmetic. To slow it on an intact dash, use a windshield sun shade and a UV-protectant (e.g., 303 Aerospace Protectant). Verify any airbag-cover integrity if the crack runs over the passenger airbag door.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 2000-2013 Chevrolet Silverado 1500, silverado 1500 trucks equipped with electronic shift transfer cases commonly develop failures in the transfer case encoder motor, mode position sensor, or related switch/module circuitry. Owners report the truck getting stuck in 2HI, 4HI, or 4LO, flashing selector lights, or displaying a Service 4WD message. GM service information and large numbers of owner complaints/forum reports document the issue across both GMT800 and GMT900 trucks.
Diagnosis should include checking transfer case switch inputs, encoder motor operation, transfer case control module communication, power/ground integrity, and corrosion at connectors. Repair often involves replacing the encoder motor assembly, dash 4WD selector switch, or reprogramming/replacing the transfer case control module if faults persist. Fluid condition and transfer case internal binding should also be ruled out before parts replacement.
On the 2007-2024 Chevrolet Silverado 1500, the mechanical (belt-driven) water pump on the LS/LT V8 Silverado 1500 is a common wear-out item. The internal shaft seal fails and coolant seeps from the pump's weep hole, often appearing as orange/Dex-Cool residue or a puddle at the front-center of the truck; the weep-hole drip can be hard to spot until the bearing also starts to whine. Owners report leaks commonly at roughly 60,000-100,000 miles. If ignored it leads to coolant loss and overheating. Some apparent water-pump leaks turn out to be a failed gasket rather than the pump itself, so confirmation matters.
Orange/Dex-Cool coolant puddle at front-center of the truck
Coolant seeping from the water-pump weep hole
Low coolant warnings or repeated topping off
Whining or grinding from the pump bearing
Engine running hotter than normal / overheating
How to Fix
Pressure-test the cooling system and confirm the leak is from the pump weep hole / shaft seal versus a gasket or hose. Replace the water pump (and gasket), refill with the correct GM Dex-Cool spec coolant, and bleed the system. Inspect the belt and tensioner while accessing the pump. Address any low-coolant overheating before it damages head gaskets.
Medium ConfidenceVerified0 reportsReviewed Jun 2026
On the 1999-2010 Chevrolet Silverado 1500, gMT800/GMT900 Silverados are notorious for rusting out the rocker panels (below the doors) and cab corners (lower rear corners of the cab). The double-wall panels trap road salt, water, and debris; body drains plug, gaskets rot and let water run down inside, and the metal rusts from the inside out—often hidden behind step bars or plastic cladding until it's crumbling. It's one of the defining problems of high-mileage salt-belt trucks and hurts resale badly.
Holes rusting through cab corners behind the doors
Flaking metal hidden behind step bars/cladding
Water/debris trapped inside lower body pockets
How to Fix
Cut out the rusted sections and weld in replacement rocker and cab-corner panels (widely available stamped panels), then seal, prime, and undercoat with cavity wax inside the panels. Clear the cab and door drain holes annually and rinse trapped grime out of the pockets to slow recurrence. Full professional rocker + cab-corner replacement can run into the thousands; DIY panel welding is far cheaper.
Medium ConfidenceVerified0 reportsReviewed Jul 2026
Campaign #20V79200017/12/2020
TIRES
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
Campaign #20V68400005/11/2020
AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
What is the 2007-2009 Chevrolet Silverado 1500 Windshield Washer Fluid Heater Module Shorting and Underhood Fire Risk?
Some GMT900 Silverado 1500 trucks equipped with the heated windshield washer fluid system experienced internal shorts in the washer heater module. Owners reported smoke, melting components, dead batteries, and in some cases underhood fires even when the truck was parked. GM issue… Repairs typically run $0-$400. Severity: high.
What is the 2000-2013 Chevrolet Silverado 1500 Engine Oil Cooler Line Failure Causing Rapid Oil Loss at Crimped Hose Fittings?
Silverado V8 trucks commonly develop leaks at the crimped sections of the engine oil cooler lines or at the quick-connect fittings near the radiator/oil cooler adapter. Owners often report sudden puddles of oil, oil sprayed under the truck, or a rapid drop in oil pressure with li… Repairs typically run $250-$900. Severity: high.
What is the 2007-2019 Chevrolet Silverado 1500 P0700 — Transmission Control System Malfunction from Failed 6L80 TEHCM (or 4L60E Shift Solenoid)?
P0700 is not a specific fault by itself — it is an umbrella/MIL-request code the ECM stores whenever the transmission control module (TCM) detects an internal transmission problem and asks the ECM to turn on the check-engine light. On the Silverado 1500 it almost always appears a… Repairs typically run $300-$1,600. Severity: high.
What is the 2007-2014 Chevrolet Silverado 1500 Brake / Fuel Line Corrosion Failure (Galvanized Steel Lines, Salt-Belt)?
The original galvanized-steel brake (and fuel) lines on these trucks lack the modern nylon/PVF anti-corrosion coating, so in cold-weather/road-salt states the lines rust from the outside in and rupture. A brake-line burst causes sudden, often warning-light-free loss of brake pres… Repairs typically run $300-$1,200. Severity: high.
What is the 2000-2013 Chevrolet Silverado 1500 Transfer Case Encoder Motor / Position Sensor Failure Causing Stuck 4WD or Service 4WD Message?
Silverado 1500 trucks equipped with electronic shift transfer cases commonly develop failures in the transfer case encoder motor, mode position sensor, or related switch/module circuitry. Owners report the truck getting stuck in 2HI, 4HI, or 4LO, flashing selector lights, or disp… Repairs typically run $250-$1,200. Severity: medium.
What is the 2007-2024 Chevrolet Silverado 1500 Catalytic Converter Theft Vulnerability (High Ground Clearance, Easily Accessed Converters)?
The full-size Silverado 1500 is one of the most frequently targeted vehicles in the U.S. for catalytic converter theft. Its high ground clearance and underbody-mounted, easily reached converters let thieves cut them out in seconds, often in broad daylight, and lifted trucks are e… Repairs typically run $300-$3,000. Severity: medium.
What is the 2007-2024 Chevrolet Silverado 1500 Water Pump Failure / Weep-Hole Coolant Leak on 5.3L and 6.2L V8?
The mechanical (belt-driven) water pump on the LS/LT V8 Silverado 1500 is a common wear-out item. The internal shaft seal fails and coolant seeps from the pump's weep hole, often appearing as orange/Dex-Cool residue or a puddle at the front-center of the truck; the weep-hole drip… Repairs typically run $200-$1,450. Severity: medium.
What is the 2000-2013 Chevrolet Silverado 1500 Front Wheel Hub Bearing Failure Triggering ABS Warning and Growling Noise?
Silverado 1500 trucks commonly develop front hub bearing wear, especially on higher-mileage 4x4s and trucks used on rough roads or with oversized tires. Owners report a humming or growling noise that changes with speed and steering input, and because the wheel speed sensor is int… Repairs typically run $250-$800. Severity: medium.
What is the 2007-2024 Chevrolet Silverado 1500 Broken Exhaust Manifold Bolts on 5.3L/6.2L V8 Causing Exhaust Tick and False P0420?
GM's small-block V8s (Gen III/IV LS and Gen V LT) in the Silverado 1500 are notorious for snapping exhaust manifold bolts. The steel bolts and the aluminum cylinder heads expand and contract at different rates through countless heat cycles, fatiguing the bolts until the heads sna… Repairs typically run $250-$900. Severity: medium.
What is the 1999-2010 Chevrolet Silverado 1500 Rocker Panel & Cab Corner Rust-Through (Salt-Belt Body Corrosion)?
GMT800/GMT900 Silverados are notorious for rusting out the rocker panels (below the doors) and cab corners (lower rear corners of the cab). The double-wall panels trap road salt, water, and debris; body drains plug, gaskets rot and let water run down inside, and the metal rusts f… Repairs typically run $300-$5,000. Severity: medium.
What is the 2000-2013 Chevrolet Silverado 1500 Blend Door / HVAC Actuator Failure Causing Clicking Dash Noise and Incorrect Airflow Temperature?
A frequent Silverado complaint is failure of the HVAC mode or blend door actuators, which causes repetitive clicking from behind the dash and leaves the system stuck on one vent mode or one temperature setting. Owners often notice one side blowing hot while the other stays cold,… Repairs typically run $100-$600. Severity: low.
What is the 2007-2014 Chevrolet Silverado 1500 Dashboard Cracking and Splitting Across the Top Pad (One-Piece Dash, Sun/UV Degradation)?
GMT900-generation Silverado 1500 trucks (and platform-mates Tahoe/Suburban/Avalanche/Sierra/Yukon/Escalade) are widely reported to develop long cracks and splits across the top of the dashboard pad, typically radiating from the passenger airbag seam, defroster vents, and the corn… Repairs typically run $150-$1,200. Severity: low.
What is the 2003-2010 Chevrolet Silverado 1500 Oil Pressure Sending Unit Failure (Erratic, Pegged, or Zero Oil Pressure Gauge)?
The engine oil pressure sensor/sending unit on LS truck V8s commonly fails or gets its screen clogged with sludge, sending the dash gauge bouncing, pegging high, dropping to zero, or reading falsely low—often with an 'oil pressure' warning even though actual pressure is fine. GM… Repairs typically run $20-$120. Severity: low.
What is the 2000-2013 Chevrolet Silverado 1500 Intermediate Steering Shaft Knock/Clunk Over Bumps and During Low-Speed Turns?
Silverado owners across both GMT800 and early GMT900 generations frequently report a clunk or knock felt in the steering column/floor area, especially over small bumps or while turning into driveways. The issue is commonly traced to play or binding in the intermediate steering sh… Repairs typically run $80-$450. Severity: low.
