P0024 code: Camshaft Position Timing Over-Advanced (Bank 2, Exhaust)
P0024 means camshaft Position Timing Over-Advanced (Bank 2, Exhaust). The code says where to look, not what failed — the fix depends on which cause your car actually has.
What P0024 means
P0024 is a timing-performance code: the exhaust camshaft on Bank 2 is sitting more advanced than the computer commanded, and the computer cannot bring it back into line. Bank 2 only exists on V-type and flat engines, so this is the bank opposite cylinder 1. Because the phasers run on oil pressure through small passages, the cheapest and most common culprits are oil-related — low level, wrong viscosity, or dirty oil clogging the solenoid screen — followed by a sticking oil-control solenoid or a worn/stuck phaser on that cam. A stretched timing chain is the serious high-mileage cause. Since both banks share the same oil supply, a fault confined to Bank 2's exhaust cam often implicates that specific solenoid or phaser, but verifying the oil is still the right first move.
P0024 symptoms
- Rough idle or stalling
- Hesitation or reduced power
- Reduced fuel economy
- Rattle from the engine at start-up in chain-wear cases
- Check-engine light
What it costs to fix P0024
Varies by vehicle — get it diagnosed.
The repair cost for this code depends too much on your exact vehicle and the underlying cause to quote a meaningful range. Confirm the cause first so you only pay for the fix you actually need.
Diagnose P0024 for my vehicle →How to fix P0024
Moderate — doable at home with common tools and patience
- Start at the oil, especially after a recent change
Check level, condition, and that the grade matches the filler cap or owner's manual. If P0024 appeared shortly after an oil service, the wrong viscosity or the wrong filter is a prime suspect — redo the change with the specified oil and a quality filter, clear the code, and drive for a few days before buying parts.
- Graph Bank 2 exhaust desired versus actual angle
Many dual-VVT designs park the exhaust phaser at its fully advanced position and retard it on command. If live data shows the actual Bank 2 exhaust angle stuck at that rest value while the desired value moves, the phaser isn't getting oil or can't leave its lock; if it moves but hunts or overshoots, a sticky oil-control valve is more likely.
- Exchange the exhaust oil-control valves between banks
Where the Bank 1 and Bank 2 exhaust valves share a part number, trade their positions and clear the code. If the fault follows the part and P0014 now shows on Bank 1, the valve is bad; if P0024 stays put, the valve is cleared and the problem lies in Bank 2's oil feed, phaser, or chain.
- Inspect the valve screen and replace a sticky valve
With the Bank 2 exhaust valve out, look for sludge or glittery debris on its screen and check that the spool moves freely when energized with fused 12-volt leads. Clean a lightly fouled screen, replace a valve that hangs, and treat metallic flecks as a hint that chain guides or the phaser are wearing.
- Have correlation and timing checked if it persists
A Bank 2 exhaust cam that stays advanced on good oil and a known-good valve suggests a worn or jammed phaser or a stretched chain — look for Bank 2 correlation codes such as P0019 and listen for rattle at cold start. Verifying it means opening the timing cover, so drive gently and get a shop diagnosis.
DIY or shop? Getting the oil right, reading cam-angle data, and swapping or replacing the Bank 2 exhaust valve are realistic for a home mechanic with a scan tool and hand tools, provided the valve can be reached without pulling the intake — some rear-bank valves can't. Work behind the timing cover (phaser, chain, guides, tensioner) needs cam-locking tools, the engine's exact timing procedure, and many hours, and a mistake on an interference engine can bend valves. That stage belongs at a shop.
Tools for the DIY steps: Scan tool with cam angle live data · Specified engine oil and a quality filter · Socket set · Fused 12V test leads · Parts cleaner
Not sure which step applies to your car? Get the likely cause for your exact vehicle before buying anything for P0024.
Start a case with P0024 and your car. Redline weighs these causes against what your car shows, and names the check that would settle it before you buy parts.
Can I drive with P0024?
Redline can’t determine from a symptom or code alone whether your car is safe to drive.
P0024: common questions
What's the difference between P0024 and P0023?
P0023 is an electrical fault in the Bank 2 exhaust-cam solenoid's circuit. P0024 means the circuit works but the cam is physically not where it was commanded — over-advanced — which points to oil flow, a sticking solenoid or phaser, or chain stretch rather than wiring.
Can an oil change really fix P0024?
In a meaningful share of cases, it can — the phaser is hydraulically controlled, and low, dirty, or wrong-grade oil can keep it from following commands. It's not guaranteed, but it's the cheapest first step and good for the engine regardless.
Is P0024 a timing chain problem?
Sometimes, particularly on high-mileage engines — a stretched chain changes the cam-to-crank relationship. But a sticking solenoid or oil issue is more common and far cheaper, so rule those out before pricing a chain job.
Can I drive with P0024?
Not something a code can answer by itself. The engine loses efficiency while the cam is out of position, so get it diagnosed soon. Treat a cold-start rattle or worsening driveability as the signal to stop driving and have the timing components inspected.
Related trouble codes
Don’t have a scanner yet? A ~$25 Bluetooth adapter reads codes like P0024 from your phone. See our guide to the best OBD2 Bluetooth adapters. Run a repair shop? See Redline for shops.
Generic OBD-II reference. Manufacturer-specific behavior varies. Confirm with a scan tool and, for safety-related codes, a professional inspection. Cost ranges are reference ranges, not quotes.
Seeing P0024 on your car?
Every problem becomes a Case. Tell Redline what the car is doing: it shows what the evidence supports, what’s still missing, and what to check next, before you approve a repair.
“Inner pad ~1 mm. Outer pad 3 mm.”
Next: check the slide pins move freely before buying parts.