Hyundai · Engine · Critical code

P0017 on Hyundai: How to Diagnose & Fix

Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B

4 Hyundai models · 4 documented issues · 2 critical · $100-$2,500 repair

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P0017 on Hyundai by model: symptoms, diagnosis and fix

Community reported
80 owners

The 5.0L Tau GDI V8 in the Equus develops a timing chain rattle on cold start that lasts 1-5 seconds before oil pressure builds and the hydraulic tensioners take up chain slack. The issue is caused by the hydraulic chain tensioners bleeding down oil overnight, allowing chain slack at startup. While the rattle typically goes away quickly, prolonged operation with rattling chains can cause chain guide wear and eventual timing chain stretch. Extended oil change intervals (beyond 5,000 miles) exacerbate the issue.

Common Symptoms

  • Rattling or clattering noise for 1-5 seconds on cold start
  • Noise comes from front of engine (timing cover area)
  • Noise disappears after engine warms up
  • Rattle worsens in cold weather
  • Check engine light with cam/crank correlation codes (advanced wear)

How to Fix

Change oil every 5,000 miles (not 7,500 as recommended in some manuals) with 5W-30 synthetic that maintains viscosity at cold temperatures. If the rattle persists beyond 3-5 seconds, replace the primary timing chain tensioners with updated Hyundai parts. The Tau V8 uses four timing chains (two primary, two secondary) — inspect all tensioners and guides during replacement. Some owners install one-way check valve oil drain back fittings to prevent tensioner bleed-down.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Hyundai 24410-3F401 timing-chain tensioner assembly
    OEMHyundai 24410-3F401

    Confirm VIN, engine and side with the diagra

  • Genuine Hyundai 24410-3F411 timing-chain tensioner assembly
    OEMHyundai 24410-3F411

    Confirm VIN, engine and side with the

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

  • TipUse a quality 5W-30 full synthetic oil (Mobil 1, Pennzoil Ultra Platinum) and change every 5,000 miles — good oil prevents tensioner bleed-down and chain wear
  • TipIf cold start rattle lasts more than 5 seconds, have the tensioners inspected immediately — prolonged rattle causes chain guide wear that turns a $1,000 repair into a $3,000 one
  • WarningDo not extend oil change intervals beyond 5,000 miles on the Tau V8 — the GDI system dilutes oil with fuel, reducing its ability to maintain hydraulic tensioner pressure
Typical repair cost:$100 - $2,500

Research This Issue

Based on 80 owner reports

Community Reported
Low Confidence80 owner reportsLast reported by owners Mar 2026Updated Oct 27, 2026

MD-generation Elantras with the 1.8L Nu engine develop a distinct two-to-five second rattle or 'diesel' clatter on cold start-up as the hydraulic timing chain tensioner bleeds down overnight and the plastic chain guides wear and become brittle. Early on the noise is only at start-up and quiets once oil pressure builds. As the guides crack and shed material the chain slaps continuously, cam timing drifts, and in the worst cases the chain jumps teeth on the sprocket, producing a crank-no-start and, on this interference engine, valve-to-piston contact. Forum reports consistently note that replacing the tensioner alone does not cure the noise once the guides and sprockets are worn - the whole timing set is needed. The condition is aggravated by extended oil-change intervals and by the low oil level that the same 1.8L Nu is prone to, and is separate from the connecting-rod bearing knock this engine is also known for.

Common Symptoms

  • Rattle or clatter for a few seconds on cold start-up
  • Continuous chain slap or whine at idle as wear progresses
  • Check engine light with cam/crank correlation codes
  • Rough running or reduced power
  • Crank but no start after the chain jumps teeth

How to Fix

Diagnose by listening at cold start after the car has sat overnight, then verify with a live-data cam/crank correlation reading and by inspecting the guides through the timing cover. The real fix is a complete timing set - chain, both guides, tensioner arm, hydraulic tensioner and, where worn, the sprockets - not a tensioner alone. There is no recall for this. Use only a filter meeting Hyundai's anti-drainback specification (Hyundai has published guidance that non-conforming filters worsen start-up noise) and shorten the oil-change interval to roughly 5,000 miles. If the chain has already skipped, a compression or leak-down test must be done before rebuilding the timing set, because bent valves are likely.

Typical repair cost:$700 - $1,800
Sources for this issue (4)

Research This Issue

Community Reported
Medium ConfidenceVerifiedReviewed Oct 27, 2026

The 3.5L Sigma V6 engine in the XG350 uses a timing belt with a hydraulic tensioner that can fail, allowing the belt to lose tension. The tensioner bearing can seize or the hydraulic damper can leak, both leading to belt slack and potential timing jump. The Sigma V6 is an interference engine, so a timing belt failure or jump causes catastrophic engine damage. Hyundai recommends timing belt replacement at 60,000-mile intervals, but many XG350 owners defer this service due to cost.

Common Symptoms

  • Squealing or chirping from timing cover area
  • Engine vibration and rough idle
  • Ticking noise from front of engine
  • Sudden engine failure if belt jumps or breaks

How to Fix

Replace the timing belt together with the tensioner, idler and tensioner pulleys at the recommended interval, or immediately if the tensioner leaks or the bearing is noisy. If the belt has already broken or jumped, check the valves and compression before reassembling.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Gates PowerGrip timing-belt component kit with water pump
    OEMGates TCKWP323

    Confirm VIN/engine and separately ide

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$500 - $1,200
Sources for this issue (4)

Research This Issue

Community Reported
Medium ConfidenceUpdated Oct 27, 2026

Every Tiburon engine in these years drives the camshafts with a rubber timing belt, not a chain. In North America that means the 1.8L Beta (1997 base models only), the 2.0L Beta (1997 FX and all 1998-2001 cars), the 2.0L four-cylinder (2003-2008 base and GS models) and the 2.7L Delta V6 (2003-2008 GT, SE and other V6 models). The belt is kept tight by a hydraulic tensioner. That tensioner is pressurized with oil and can leak or lose pressure, and when it does the belt goes slack and can jump teeth on the sprockets. The tensioner and idler pulley bearings can also seize or wobble, which wears the belt until it fails. The 2.0L Beta engine (1997-2001) and the 2.7L Delta V6 (2003-2008) are interference engines. If the belt jumps or breaks on one of them, the pistons can hit open valves, and a routine maintenance job becomes a cylinder-head repair. On a car this old, the service history tells you more than the mileage. Replacement at the recommended 60,000-mile interval is critical.

Common Symptoms

  • Ticking or squealing from timing cover area
  • Engine vibration at idle
  • Check engine light with timing-related codes
  • Sudden engine failure if belt jumps
  • Rattling on cold start

How to Fix

Check first: look in the service records or receipts for the last timing belt job. If you can't prove it was done, or it was done more than about 60,000 miles ago, treat it as due. A squeal or tick from behind the timing cover, or oil seeping from the tensioner, means the job shouldn't wait. The fix: replace the belt as a kit. A mechanic who answered a 2.7L V6 owner recommends replacing the water pump, the idler pulleys and the tensioning parts at the same time. The pump and pulleys sit behind the same covers, so a later pump failure would mean paying for the whole belt job again. The hydraulic tensioner has to be compressed slowly in a vise and pinned before it goes back in. Some of these tensioners leak, so fit a new one rather than reusing the old one. If the belt has already jumped or broken on the 2.0L (1997-2001) or the 2.7L V6, stop cranking the engine. Have a shop check the valves, for example with a compression or leak-down test, before fitting a new belt, because bent valves mean the cylinder head has to come off. On the 1.8L and the 2003-2008 2.0L, ask the shop to check for valve damage too. Coverage: this is routine maintenance. We found no recall or warranty extension for it, so the owner pays. Cost: Kelley Blue Book puts a Tiburon timing belt replacement at about $409 to $919 for parts and labor, depending on engine and location. Adding the water pump and pulleys raises that. Valve or head repair after a failure costs far more.

Find a nearby Hyundai repair shop in Google Maps ↗

Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Gates PowerGrip timing-belt kit with water pump
    OEMGates TCKWP284

    The source issue omits the 2002 model gap; confirm VIN, engine and build

  • Gates PowerGrip timing-belt kit with water pump
    OEMGates TCKWP284A

    Confirm VIN/engine/build date; it is not the 2.7L kit.

  • Gates PowerGrip timing-belt kit with water pump
    OEMGates TCKWP315

    Confirm the 2.7L engine and inspect/order any separately required seals, accessory belts or one-time-use hardware by VIN.

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$409 - $919
Sources for this issue (5)

Research This Issue

Community Reported
Medium ConfidenceUpdated Nov 7, 2026

P0017 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 P0017 mean on a Hyundai?

P0017 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B." This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. On Hyundai it is documented across 4 models: Equus, Elantra, XG350, Tiburon.

What are the most common causes of P0017?

The most common causes of P0017 are: Stretched or worn timing chain, Worn or failed timing chain tensioner or guides, Stuck or faulty variable valve timing (VVT) cam phaser, Faulty VVT oil control/solenoid valve, Low or dirty engine oil affecting phaser operation, Faulty camshaft or crankshaft position sensor, Timing chain jumped a tooth or incorrect timing after service, Damaged reluctor (tone) ring. The specific cause varies by vehicle.

How much does it cost to fix P0017 on a Hyundai?

Published repair estimates on Hyundai range from $100 to $2,500 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.

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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.

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