Will not start when hot

NRORKE

MEMBER
1994 CHEVROLET CAMARO
3.4L
V6
2WD
AUTOMATIC
60,000 MILES

Hi, I have a 4th gen Camaro, it starts from cold and runs fine but once it is up to temperature (i.E. Driven for more than ten minutes), if I turn it off it won't start again until cold.
Could this be a problem with the crank position sensor or has anyone had this problem before?
Thanks

7 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

When it will not start, does the tachometer move up a little while cranking? That will tell us if the crank sensor is sending a signal.

https://www.2carpros.com/articles/car-cranks-but-wont-start

I am thinking more along the lines of a fuel pump.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

You need to check the fuel pressure when it will not start.

Roy

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Tuesday, May 7th, 2019 AT 3:34 AM

NRORKE

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8 POSTS

Hi, thank you.
It has had a compression test done (does that check fuel pressure?), Also has been checked for air leaks and has had new spark plugs, HT leads and MAF/MAP sensor.

Someone mentioned checking a grounding cable from the block frame and heat shield on the starter?

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Tuesday, May 7th, 2019 AT 3:56 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

No, a compression test is totally different.

I doubt a bad ground. You would have many other issues.

Roy

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Tuesday, May 7th, 2019 AT 3:57 AM

NRORKE

MEMBER
8 POSTS

Thank you. I am struggling to find a replacement crank position sensor and my garage says they can't source one either. Would you have any idea where I can order a replacement that will deliver to the UK?

Thanks again

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Wednesday, May 8th, 2019 AT 11:41 PM

ASEMASTER6371