Would not start after running fine 30 minutes

Tiny
ALICIAB1112
  • MEMBER
  • 1999 SATURN SL2
  • 70,000 MILES
Okay so I have a 1999 Saturn sl. Two nights ago it would not start after running fine 30 minutes before that. My dad thought it was the fuel pump and so did the tow truck driver. The dome light also stopped functioning at the same time. My dad replaced the fuel pump relay and the car started fine. Today I went to start my car and it turned over and did not start. The relay is out again. Also the dome light is not working nor is the cigarette lighter. Pleases help. Great site :-)
Thursday, February 16th, 2012 AT 2:11 AM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What do you mean the relay is out again?
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Thursday, February 16th, 2012 AT 2:13 AM
Tiny
ALICIAB1112
  • MEMBER
  • 3 POSTS
When I switch the HVAc relay with the fuel pump relay it satrts just like it did before when we changed the relay for the fuel pump
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Thursday, February 16th, 2012 AT 2:19 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure with a gauge if its within specs-
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Thursday, February 16th, 2012 AT 2:35 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Just to add to this one what else doesnt work?I have seen open terminals on the 68 way connector terminal F5 its a big red wire that feeds power to the fuel pump relay etc. It connects to the back side of the inside fuse box. Sometimes when pushing the relay in and out it makes a partial connection and will run for a little while.
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Thursday, February 16th, 2012 AT 5:25 AM
Tiny
BAPOWEL
  • MEMBER
  • 1 POST
I am currently working on the same problem--in my case the problem boils down to the coil on the relay is pulling in and out, and as it happens, if you place a jumper across the contacts in place of the relay (bottom left pin hole and top right pin hole) the fuel pump and car runs perfectly. (For troubleshooting the issue only) In the underhood fuse box, I have found a burned off coupler pin. I am in the process of identifying just where that is from, and I suspect that the problem lies in that area. It CAN be caused by a lack of crank sensor signal to the pcm causing the pcm to interupt the circuit to the fuel pump relay, but the research I have done so far points to a power distribution problem--when I identify my issue, I will Post again--I too will appreciate any input relating to your experiences. Thanks and good luck.
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Friday, February 17th, 2012 AT 8:10 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
The most common thing I have seen is on that 68 way connector on the back side of the inside fuse box having a open terminal going to the fuse box. Its a big red wire wire terminal nunber F5.
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Friday, February 17th, 2012 AT 9:14 PM
Tiny
ALICIAB1112
  • MEMBER
  • 3 POSTS
Okay so update. I mmoved the relays around and it started and it ran for a whole week. Now it wont start I tried to move the relays around and it still doesn't start nit when I ouch on on the relay the key chimes and the light turns on. I can't get it to stay on long enough to try and start it. The female end of the relay is pushed in all the way
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Wednesday, February 22nd, 2012 AT 3:26 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Iam talking about the the 68 way connector on the back side of the inside fuse box that has a big red wire going to it. There is a 7mm bolt holding it in place if you remove the connector and look at the terminals you can clearly see if the terminal is open. If it is you can take a small pick and close the terminal let me know what you find.
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Wednesday, February 22nd, 2012 AT 7:02 AM

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