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#98116 11/14/2006 10:01 PM | Joined: Jul 2002 Posts: 17 Junior Member | | Junior Member Joined: Jul 2002 Posts: 17 | I have a 95 GMC that will not start. I have done the obvious ( to me) all the fuses are good changed the computor still no spark, no idiot lights, no fuel. What am I missing? It turns over fine. Can someone tell me if the anti theft device can disable it somehow?
48 nick
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#98117 11/14/2006 10:38 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | When you try to start it can you hear the fuel pump run? Brian | | |
#98118 11/14/2006 11:49 PM | Joined: Jun 2006 Posts: 687 Shop Shark | | Shop Shark Joined: Jun 2006 Posts: 687 | 95 mod. chevy's and gmc's had fuel pump problems, the connector at the pump was the culpret. If you end up doing a fuel pump make sure to clean the connectors in the pigtail and use enectrical connector grease in the socket.
I know you said you have no spark and that could be a cam or crank sensor.
For grinns and giggles take a large rubber mallot and knock the flaming dog crack out of the fuel tank at its center point while someone attempts to start it. If it starts it will probably run untill you turn it off again so this is your chance to move it to the shop for repair. good luck
I didn't do it, no one saw me do it, you can't prove anything! "Bart Simpson"
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#98119 11/14/2006 11:53 PM | Joined: Jun 2006 Posts: 687 Shop Shark | | Shop Shark Joined: Jun 2006 Posts: 687 | Oh and yes the alarm can cause the problem.
We had a caddy in the shop last week that had a problem with the a/c switch that caused the computer to lock up (crash). And it would not start. Who would have thunk?
I didn't do it, no one saw me do it, you can't prove anything! "Bart Simpson"
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#98120 11/15/2006 12:13 AM | Joined: Jul 2002 Posts: 17 Junior Member | | Junior Member Joined: Jul 2002 Posts: 17 | No fuel pump No turn signals all fuses are good No spark
48 nick
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#98121 11/15/2006 3:58 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | Check around the firewall or fenderwell for a plastic box w/a bunch of wires coming off of it, there are either fusible links or really large fuses there that can blow. Brian | | |
#98122 11/15/2006 4:28 PM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | 48 nick,
Doesn't your truck have OBD1. Using a small jumper wire connected to the proper terminals in the diagnostic port should allow the 'check engine light' to flash a specific series that might help you diagnose the problem.
I have used this procedure before on my sons '94 S-10.
Stuart | | |
#98123 11/17/2006 8:29 PM | Joined: Jul 2005 Posts: 1,158 Shop Shark | | Shop Shark Joined: Jul 2005 Posts: 1,158 | This is probably a stupid question, but have you checked the battery?
If it's not the battery, then it's probably a relay or something in the fuse box under the hood.
Try a code reader. That might tell you something, too. | | |
#98124 11/18/2006 2:20 PM | Joined: Mar 2006 Posts: 483 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 483 | If starter has been removed insure that the wires are in the proper location.Power to run comes from there. | | |
#98125 11/27/2006 7:48 PM | Joined: Jul 2002 Posts: 17 Junior Member | | Junior Member Joined: Jul 2002 Posts: 17 | Hey I found the problem It was the ignition switch wasn't giving power to anything but the radio Thanks for all the suggestions and help
48 nick
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