Trouble CodeFault LocationProbable Cause
P0008 Engine position system, financial institution 1 -engine performance Mechanical fault

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What Does code P0008 Mean?

The complex ballet the mechanical and electrical components in your engine make it feasible to harness the power locked far in every fall of fuel injected right into the cylinders. Together is the situation with many things in life, timing is certain critical. If the cylinder isn’t in the right location at the ideal time, you’re not going anywhere, or at the very least not smoothly and quietly. Mechanically-speaking, the timing in relationship to the crankshaft and camshafts must be precise, i beg your pardon is the duty of the time sprockets and also timing belt or timing chains. Depending upon the engine, the crankshaft may be linked to the camshaft(s) by a belt or chain and dual-overhead camshafts might be connected by gears or chains.

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Timing precision is certain necessary, not only for good engine performance, fuel economy, and emissions-reduction, but additionally to prevent damages to the engine itself. As the crankshaft pushes cylinder 1 up to top-dead-center (TDC) ~ above the compression stroke, the valves because that cylinder 1 have to be closing, and also the spark plug must be firing, for example. If time is turn off by a couple of degrees, the outcomes could variety from negative performance and also fuel economy to catastrophic engine failure.

Regarding timing, to store the engine to run properly, the engine control module (ECM) continually monitors the crankshaft place sensor (CKP) and camshaft place sensors (CMP). If the ECM detects that CKP is ahead or behind bank 1 CMP, one of two people a four-cylinder engine or the V6 or V8 bank with Cylinder 1, perhaps as result of a jumped timing belt this or a extended timing chain, it will certainly illuminate the breakdown indicator lamp (MIL) and collection DTC P0008, “Engine Position system Performance (Bank1),” in mechanism memory.

What are the common reasons of password P0008 ?

The main cause of DTC P0008 is extended timing chains. While this doesn’t get rid of timing belt stretch as a problem, it appears that the tolerances are much looser, on timing-belt-equipped engines, 보다 on timing-chain-equipped engines.

Jumped this – when this isn’t really common v timing chains, the adaptability of timing belts renders them slightly more susceptible to jumping teeth.


What room the symptom of password P0008 ?

Aside native the MIL, you may or may not notice any drivability problems. Symptoms may range from negative fuel economic climate to rough idle and also poor engine performance. You may notice excessive noise from the former of the engine, under the time covers.

How execute you troubleshoot password P0008 ?

It walk one great to note that this generally not a sensor problem, due to the fact that the ECM can only use good sensor readings to identify whether or no the engine is in time. In other words, if a CMP is bad, it cannot inspect for good timing in between that CMP and the CKP.

That having actually been said, diagnosing timing difficulties may best be left come the professionals, specifically if your auto is still covered under warranty. Always dual check vouch application prior to opening increase something as an essential as the time covers. V an up-to-date repair manual, knowledgeable DIYers may be able to diagnose this problem, though the accessibility of special tools might limit fix ability.

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Depending top top the model, at least the top timing covering or the valve cover(s) will have to be eliminated in order to see the timing marks. Revolve the crankshaft pulley-block clockwise till it’s timing note is at 0° or TDC. If friend cannot view the camshaft timing marks at all, climate you’ll need to rotate the crankshaft one more 360°. When the crankshaft is rotated come TDC and also you have actually the camshaft time marks in view, you have the right to verify your positions.If the camshafts room aligned properly, suspect a crankshaft or camshaft reluctor ring problem, which could be skewing CKP or CMP readings. Further disassembly will be compelled to verify that reluctor rings are properly aligned come their particular shafts.If the camshafts space not set properly, suspect a skipped or extended timing belt or time chain. Loosened or worn time belt or time chain tensioners can additionally cause a misalignment problem. Further disassembly will certainly be forced to verify ideal belt or chain position, tensioner function, and also measure the time belt or timing chain.In instance the timing belt or timing chain has skipped a tooth, that will should be reinstalled properly.In situation of stretched timing belt or time chain, it will should be replaced.In case of a worn tensioner, the will must be replaced.

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