Engine will crank but will not start

P_RODES

MEMBER
2003 CHEVROLET CAVALIER
4 CYL
FWD
MANUAL
80,000 MILES

Cranks but not start? The fuel pump is good and so is the wiring going to the fuel pump. All the fuses and relays are good too. What other problems could be keeping it from running and starting?

Wednesday, January 27th, 2010 AT 3:51 PM

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

This sounds like the crankshaft angle sensor or the fuel pump has gone out, when you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds? These guides should help us fix it.

https://youtu.be/dCjmRL3p4Cs

and

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

Also, lets run the codes to see what come up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down these guides and report back.

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Wednesday, June 16th, 2021 AT 3:34 PM

P_RODES

MEMBER
3 POSTS

It is not getting any fuel to the fuel rail. And when it does it's barely any at all. Could this be due to the PCM?

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Wednesday, June 16th, 2021 AT 3:34 PM

RASMATAZ

MECHANIC
75,992 POSTS

Check the fuel pressure to rule out the fuel pump

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Wednesday, June 16th, 2021 AT 3:34 PM

P_RODES

MEMBER
3 POSTS

I bypassed everything and hooked the fuel pump straight to the battery and it pumped out fuel. So I replaced the relay again and it worked! Thanks for your help cost me $34.00 I love this site.

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Wednesday, June 16th, 2021 AT 3:34 PM