engine will crank but will not start

2003 CHEVROLET CAVALIER
80,000 MILES • 4 CYL • FWD • MANUAL
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P_RODES
  • MEMBER
  • 3 POSTS
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?
Jan 27, 2010 at 3:51 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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.
Jun 16, 2021 at 3:34 PM
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P_RODES
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  • 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?
Jun 16, 2021 at 3:34 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check the fuel pressure to rule out the fuel pump
Jun 16, 2021 at 3:34 PM
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P_RODES
  • MEMBER
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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.
Jun 16, 2021 at 3:34 PM
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