2007 Honda Ridgeline Problems: 10 Known Issues

How to Fix

At 60,000 miles: remove spark plugs and re-torque to proper spec (18 ft-lbs) using torque wrench. Inspect each plug for backing out or looseness. Use OEM Honda spark plugs only. Coil pack replacement if melted: $150-$300 per coil + labor. Engine head repair if melted coil damaged head: $1,500-$3,000+. Full engine rebuild if catastrophic: $4,000-$8,000+.

Owner tips & cautions

• TipUse torque wrench when installing spark plugs - do not over-tighten (18 ft-lbs spec exactly)
• TipAlways work on engine when completely cool - aluminum expands significantly when hot and causes incorrect torque readings
• TipCheck spark plug torque at 60,000 miles and every 30,000 miles thereafter as preventive maintenance
• WarningHave coil packs inspected immediately if misfire codes appear - replacing coils early prevents catastrophic $4,000+ engine damage

How to Fix

Replace the timing belt as a complete job at or before 105,000 miles / 7 years, and always replace the hydraulic tensioner, tensioner pulley, idler pulley, water pump, drive belt and cam/crank seals at the same time - never belt-only. Inspect the lower timing cover for oil residue at every oil change; wet residue at the tensioner is a leak, not a drip from above. Dealer pricing for belt + tensioner + water pump has run roughly $900-$1,700; a skipped belt on this interference engine runs $4,000-$5,000+ in valve, head and piston work.

How to Fix

Have the VIN checked at nhtsa.gov/recalls and get the free recall inspection. Depending on severity the dealer either applies anti-corrosive wax plus a reinforcement brace (with reinforcement repair plates if necessary), or repairs the corroded frame. If the corrosion is too advanced to repair, Honda has been repurchasing trucks. Outside the recall states, the preventive fix is annual undercarriage washing, flushing debris out of the rear frame rails, and applying an oil-based rust inhibitor (Fluid Film / Woolwax) to the rear frame section before rot starts.

How to Fix

Preventive maintenance: inspect and clean all 10 bed drainage holes and trunk perimeter weep holes quarterly. Clear gutter channel around trunk opening of debris. Clean small drain holes at bottom of gutter channel. Verify trunk latch alignment - improper alignment prevents seal closure. Inspect and replace weatherstripping seals if twisted or loose ($50-$150). Dealer inspection: $100-$200.

Owner tips & cautions

• TipClean drainage holes every 3 months using small wire probe or compressed air - quarterly inspection prevents major flooding issues
• TipAfter vehicle wash, check trunk for standing water and ensure all holes are clear
• TipInspect weatherstripping seals annually and replace if cracked or twisted - prevents water intrusion
• WarningAvoid high-pressure washer spray directed at trunk area - can push debris into drain holes and cause clogs
• TipRidgelineOwnersClub has detailed forum threads with photos showing exact drainage hole locations and cleaning procedures

How to Fix

Start with the free steps owners report success with: clean and lubricate both latch assemblies and all contact points with a penetrating lubricant, then a dry film lube. On 2020 and later trucks make sure the tailgate is unlocked with the doors. If the gate still won't release, the inner trim panel comes off to check the latch rods; Honda's documented fix for 2017 trucks whose tailgate won't swing open is replacing the left upper latch sensing rod (bulletin 16-077). A failed latch assembly is replaced as a unit.

How to Fix

Proactive radiator replacement at 100,000 miles as preventive maintenance ($300-$600). If SMOD has occurred: full transmission rebuild or replacement ($4,000-$6,000). Use Honda ATF DW-1 (which replaced ATF-Z1) or equivalent. Many owners replace radiator every 100k miles as insurance policy.

Owner tips & cautions

• TipCheck transmission fluid color every oil change - pink or milky indicates coolant intrusion and immediate service needed
• WarningIn rust-belt states, inspect radiator for corrosion every 50k miles - road salt accelerates radiator failure
• TipJoin RidgelineOwnersClub forums to monitor SMOD failures reported in your region and model year

How to Fix

Replace rear differential fluid with Honda VTM-4 Differential Fluid (P/N 08200-9003), not DPSF; fluid ($40-$60) + labor ($80-$120) = total $120-$180. Check differential fluid level by removing fill plug - should be at bottom of hole. Change fluid every 30,000-50,000 miles. If the drained fluid is pink, water has entered through the breather and a fluid change alone may not cure the noise. Avoid launching boats or driving through water covering tires. Differential replacement if severely damaged: $800-$1,500.

Owner tips & cautions

• TipChange differential fluid every 30k-50k miles, NOT following original 100k mile maintenance schedule - prevents premature breakdown
• TipInspect rear diff during every oil change for leaks - catching early saves $1,000+ differential replacement
• WarningAvoid launching boats or deep water driving - causes water contamination through breather vent leading to premature failure
• TipFluid color indicates condition - dark brown or black fluid indicates contamination requiring immediate change

How to Fix

Run the VIN through the free NHTSA recall lookup at nhtsa.gov/recalls or Honda's owner site. Replacement inflators are free with no mileage or age limit and the job is typically under two hours. Do not carry front passengers in an unrepaired truck, and never install a used or salvage-yard airbag module from another first-gen Ridgeline - it may be an unremedied Takata unit.

How to Fix

Diagnose properly before buying parts: with the truck on a lift and the suspension unloaded, pry-test each lower ball joint for play and inspect the rear compliance bushing in the arm for cracking and voiding. Re-torque the lower control arm frame bolts and subframe fasteners at ride height - several owners cured the clunk that way alone. The repair is a complete lower control arm assembly (ball joint included) per side, followed by a four-wheel alignment; separate the ball joint from the knuckle with a pickle fork after pulling the cotter pin and castellated nut. Sway bar end links and upper strut mounts are the other two common clunk sources - check them in the same visit.

How to Fix

Start with the cheap fix owners have proven out: replace the O-rings on both hoses at the power steering pump (a few dollars in parts) and torque the return-hose bolt. Remove and clean the reservoir - the internal fine screen clogs and starves the pump. Flush the system with Honda PSF-S (genuine Honda fluid only; ATF or universal PS fluid attacks the seals) using repeated turkey-baster changes. If the whine persists with good fluid and no air, or if you find fluid on the pump body or a cracked high-pressure hose, replace the hose and/or pump.