P0018 on Kia: How to Diagnose & Fix
Crankshaft/Camshaft Position Correlation - Bank 2 Sensor A
1 Kia model · 1 documented issue · 1 critical · $1,500-$3,500 repair
P0018 on Kia by model: symptoms, diagnosis and fix
The Borrego's 3.8L Lambda V6 is prone to timing chain stretch, causing a persistent rattle from the front of the engine. The chain stretches beyond the tensioner's ability to compensate, causing cam timing to drift. This triggers check engine lights for cam position correlation errors. The chain guides also deteriorate, with plastic pieces breaking off and entering the oil pan. If the chain stretches enough to jump a tooth, it causes valve-to-piston contact on this interference engine.
Common Symptoms
- Persistent rattling noise from front of engine
- Check engine light with P0016/P0017/P0018/P0019 codes
- Rough idle and reduced power
- Engine misfires (P0300 series codes)
- Noise increases with engine RPM
How to Fix
Replace the timing chain, tensioners, and all chain guides as a complete set. The job requires removing the front timing cover and takes 8-12 hours of labor. Use a quality timing chain kit from Cloyes or Melling with improved chain guide material. Change the oil and filter immediately after the repair to flush out any chain guide debris. This is a preventive replacement — don't wait for the chain to jump.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Cloyes 9-0771SX OE-replacement timing-chain kitOEMCloyes 9-0771SX
Replace confirmed worn chains, guides and tensioners as a matched set after mechanical/VVT diagnosis Fitment/availability: 2009-2011 Kia Borrego 3.8L Lambda V6 in this issue; retailer catalogs the kit through 2012. Verify VIN, engine bui…
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Owner tips & cautions
- TipIf the chain is rattling, schedule the repair within 2-4 weeks — do not wait. A jumped chain bends valves and turns a $2,500 repair into a $5,000+ engine rebuild
- WarningChange oil immediately after timing chain replacement to flush out plastic guide debris — this debris can clog the oil pickup screen
Sources for this issue (2)
P0018 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 P0018 mean on a Kia?
P0018 stands for "Crankshaft/Camshaft Position Correlation - Bank 2 Sensor A." This code means the computer detected that the crankshaft and the Bank 2 'A' (typically intake) camshaft are out of their expected timing relationship. The computer compares the crankshaft and camshaft position sensor signals; they should stay in a fixed correlation as the engine turns. When the Bank 2 camshaft is too far off from the crankshaft, P0018 sets, indicating the valve timing on that bank is misaligned. This can cause rough running, reduced power, hard starting, or a no-start, and in some cases signals timing chain or phaser trouble that warrants prompt attention. On Kia it is documented across 1 model: Borrego.
What are the most common causes of P0018?
The most common causes of P0018 are: Stretched, worn, or jumped timing chain (Bank 2), Worn or broken timing chain guides/tensioner, Stuck variable valve timing solenoid or phaser, Low or dirty engine oil affecting the phaser, Faulty crankshaft or camshaft position sensor, Damaged reluctor/tone ring, Incorrect timing from prior service, Wiring or connector fault at a cam/crank sensor. The specific cause varies by vehicle.
How much does it cost to fix P0018 on a Kia?
Published repair estimates on Kia range from $1,500 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0018 on a different make?
View P0018 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.