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2002 Chevy Cavalier NO START

Tiny
SBCBOY1
  • MEMBER
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 57,000 MILES
I have a no start problem. I was driving around 65mph and it just died on me no warning no nothing just died. I have fuel and I have spark. I changed the oil cause it was full of fuel. Changed the plugs and fuel filter. I pulled the fuel relay out and it ran for a second or two I put the fuel relay back in and it wont run. I sprayed starting fluid in it and it did nothing with the fuel relay in if I pull the fuel relay back out and spray starting fluid in it the car will run real ruff. I changed the map sensor too and it seemed like it wanted to start but it wont. There are no codes coming up for anything. Dose anyone have any ideas im at a loss and I need my car back for monday so I can get to work. Could there be a timing problem? I dont think so because it has a chain and not a belt.
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Sunday, October 17th, 2010 AT 1:55 AM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure to rule out the fuel filter, fuel pressure regulator and fuel pump also check if the injectors are pulsing
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Sunday, October 17th, 2010 AT 2:06 AM
Tiny
SBCBOY1
  • MEMBER
  • 3 POSTS
There is no port on the fuel rail for me to cheack the fuel pressure. I replaced the fuel presure regulator and that did'nt change anythng. Why will it only run when I pull the fuel relay out and not when its in?
Could the crank sensor be the problem?
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Sunday, October 17th, 2010 AT 9:40 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It will run without the fuel pump relay bcuz the fuel pump and oil pressure sending unit is powering the fuel pump when the engine fires up-

If there's a problem with the crank sensor it will not have spark
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Sunday, October 17th, 2010 AT 12:11 PM
Tiny
SBCBOY1
  • MEMBER
  • 3 POSTS
So why wont it run when I plug the relay back in?
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Sunday, October 17th, 2010 AT 12:28 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you hear the fuel pump come for 2 secs when you turn key to run? Computer might not be grounding the coil side of the relay or the relay is defective
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Sunday, October 17th, 2010 AT 12:33 PM
Tiny
SBCBOY1
  • MEMBER
  • 3 POSTS
Yes I hear the fuel pump come on. I did notice when I tried to start the car the engine light was blinking. I'm pulling the timing cover off as we speak to check and make sure it didnt jump a tooth. I have never run into a problem like this.
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Sunday, October 17th, 2010 AT 3:01 PM

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