P0019: How to Diagnose & Fix — Crankshaft/Camshaft Position Correlation - Bank 2 Sensor B
32 vehicles · 15 makes · $70-$14,000 repair
How to diagnose and fix P0019: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Land Rover Range Rover · 2010–2022
The Jaguar/Land Rover AJ-V8 5.0L engine suffers from timing chain tensioner failures. The hydraulic tensioners lose oil pressure on cold starts, allowing the timing chains to slap against the guides. Over time the guides wear and the chain stretches, leading to jumped timing and potential catastrophic engine damage. This is the single most expensive common failure on these engines.
Common Symptoms
- Rattling or whining noise on cold start lasting 2-10 seconds
- Check engine light with camshaft timing codes
- Rough idle after cold start
- Metallic rattling from front of engine
- Progressive worsening of startup rattle over weeks
How to Fix
Replace all four timing chain tensioners, timing chains, and chain guides. This is a major job requiring engine removal or substantial front-end disassembly. Use updated JLR tensioners (part number LR051013 superseded). Budget 20-30 hours labor at an independent specialist.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- DA3416 AJ133 timing-chain kitOEMDA3416.G
Renew the matched timing chains, guides, tensioners and sprockets after AJ133 timing-system failure is confirmed Fitment/availability: Range Rover L322 2010-2012 and L405 AJ133 5.0 V8 branches covered by the listed kit; confirm VIN/engin…
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Owner tips & cautions
- WarningDo NOT ignore cold start rattle. Once the chain jumps timing, the engine is destroyed. Budget $5,000-$8,000 at a specialist. Dealer quotes of $12,000+ are common.
Jaguar XF · 2009–2015
The Jaguar AJ-V8 engines in the XF suffer from hydraulic timing chain tensioner failure, causing chain slack on cold starts. The tensioner bleed-down allows the chain to rattle against the guides, and prolonged neglect leads to stretched chains and jumped timing, risking catastrophic valve-to-piston contact.
Common Symptoms
- Rattling noise on cold start lasting several seconds
- Check engine light with cam timing codes
- Rough idle on cold start
- Progressive worsening of rattle over months
How to Fix
Replace all four timing chain tensioners, both timing chains, and all chain guides. Use updated JLR tensioner part numbers. This is a major engine-out or front-cover-off job requiring 20+ hours labor. Do not delay once cold-start rattle is observed.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- HTK200 complete timing-chain kit for the 2009 4.2L XF branchOEMHTK200
Confirmed chain, guide or tensioner failure on a 2009 XF 4.2L naturally aspirated or supercharged engine Fitment/availability: HTK200 is the later AJ-V8 chain/guide/tensioner kit and its application family includes the 4.2L components us…
- GTCK8003 complete 8 mm AJ133 timing-chain kitOEMGTCK8003
Confirmed timing-drive wear on a 2010-2015 XF 5.0L physically/VIN confirmed to use the 8 mm INA chain system Fitment/availability: GTCK8003 lists XF 5.0L 2009-2015 and contains 8 mm chains, auxiliary chain, guides, tensioners and crank s…
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- WarningDo not ignore cold-start rattle. Once the chain jumps, expect $10,000+ in engine damage or a full engine replacement. Budget $5,000-$8,000 for preventive replacement at a specialist.
Ford Expedition · 2004–2014
The 5.4L 3-valve (3V) Triton V8 in 2004-2014 Ford Expedition is notorious for cam phaser failures and timing chain stretch, representing one of the most common and expensive repairs on these trucks. The VCT (Variable Camshaft Timing) system uses oil pressure to actuate the cam phasers - when phasers wear out or chains stretch, the engine sets multiple camshaft correlation codes and rattles on startup. The factory oil pump also wears out at similar intervals, compounding the problem. Running low on oil or using the wrong viscosity dramatically accelerates failure. Left unrepaired, a failed phaser can cause a chain to jump timing, resulting in bent valves and catastrophic engine damage. Repair typically requires complete timing system replacement including both cam phasers, all four timing chains, guides, and tensioners - a 12-16 hour job.
Common Symptoms
- Loud rattling/knocking from engine on cold start (top-end rattle)
- Check engine light with codes P0340, P0341, P0344, P0345, P0346, P0349 (cam sensor/phaser codes)
- Codes P0016, P0017, P0018, P0019 (camshaft-crankshaft timing correlation)
- Rough idle, especially when cold
- Engine surging at idle
- Loss of power and poor fuel economy
- Rattle that worsens on acceleration at low RPM
- Multiple misfire codes accompanying timing codes
How to Fix
Complete timing system overhaul: replace both VCT cam phasers, timing chains (primary and secondary), all chain guides, and tensioners as a complete kit. Motorcraft timing chain and phaser kit (TKIT-2004A-MGA or dealer equivalent) is recommended. Also replace the oil pump if over 80,000 miles - worn pump cannot supply adequate oil pressure for VCT system. Use 5W-20 full synthetic oil only. Change oil every 5,000 miles maximum. Labor: 12-16 hours on Expedition due to 4WD and engine mounts.
Sources for this issue (1)
Jaguar XK · 2007–2015
Subaru Tribeca · 2008–2014
Find P0019 by make
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P0019 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0019 mean?
P0019 stands for "Crankshaft/Camshaft Position Correlation - Bank 2 Sensor B." This code means the engine computer detected that the crankshaft and camshaft positions on bank 2 (sensor B, typically the exhaust camshaft) are out of their expected correlation — in other words, the cam and crank timing don't line up correctly. The computer compares the crankshaft and camshaft position sensor signals to verify valve timing, which is often controlled by a variable valve timing (VVT) actuator. A correlation error points to mistimed valve events, frequently from oil-flow or VVT issues, a stretched timing chain, or sensor faults. You may notice rough idle, reduced power, poor fuel economy, or a check-engine light, and ignoring it can risk engine damage.
What are the most common causes of P0019?
The most common causes of P0019 are: Stretched or worn timing chain (and worn guides/tensioner), Faulty variable valve timing (VVT) actuator/solenoid (Bank 2), Low oil level or dirty/sludged oil restricting VVT flow, Faulty camshaft or crankshaft position sensor, Clogged VVT oil control valve screen, Damaged sensor wiring or connector, Jumped/misaligned timing during prior service. The specific cause varies by vehicle.
How much does it cost to fix P0019?
Repair costs for P0019 range from $70 to $14,000, depending on the vehicle and root cause.
Which vehicles are affected by P0019?
Au7o has documented P0019 across 32 vehicle models from 15 manufacturers: Audi, BMW, Buick, Cadillac, Chevrolet, Ford, GMC, Hyundai, Jaguar, Kia, Land Rover, Lincoln, Mercedes-Benz, Saturn, Subaru.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.