Skip the auto shop - Our mechanics make house calls

Q: Cant find the TDC mark or the flywheel.

asked by on

I changed the water pump last month and put the timing belt on and the car ran gine but the engine light cane on. I took it to a place and they said it was off by a little and thats why the engine light was on. I took it off and tried putting it back on. Whoever changed it before me has an arrow carved on bolt that I turn and that arrow is pointing to a line on the cover..which tells me it is on the correct spot. However over on the other side on the flywheel...i do not see the TDC mark. My wife made a video while i turned it and there was NO mark. What to do next?

My car has 158000 miles.
My car has a manual transmission.

If you cannot find TDC on the flywheel, try finding TDC on the lower belt cover with the vibration damper installed. There is a notch on the damper that should line up with a mark on the lower cover. If the bolt you are referring to is the harmonic balancer bolt as the one with the mark and it has been removed and re-tightened, you cannot rely on this marking either as it can move around so the timing will never be correct. Consider hiring an experience technician like one from YourMechanic who can come out and take a closer look at the warning light trouble codes and the misalignment situation to offer a more personal diagnosis

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Possible broken axle

This vehicle needs to be towed to a body shop to evaluate repairs. Hopefully the damage is not extensive, but they are directly linked to insurance companies who can get you on the road again.

Q: Vacuum leak

Hi. This is a very common failure on vehicles like yours. So common, in fact, that there is a technical service bulletin (TSB) on it. The TSB is XT303-13 and it addressed the hissing sound from under the hood, as...

Q: Timing chain too loose

Hello. The rattling sound that you are hearing could be coming from several different areas of the engine. Your drive belt pulley could be bad, a compressor clutch could be loose, or the alternator pulley or timing chain could be...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...