Need help 2002 c5 won't start
Thread Starter
Pro
Joined: Feb 2009
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From: Ft Lauderdale FL
Need help 2002 c5 won't start
I have 2002 C5 manual that will not start, it turns over fine, has fuel pressure but has no spark out of any of the 8 coils. I have checked all the mini and max fuses in both fuse boxes. Anybody have any ideas...it would be appreciated
Tech Contributor
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From: Dyer, IN
Do you have a scanner capable of reading RPM? If so, that's the first thing I would check, to see if the crank sensor is providing an output. Have you checked 12 volts and ground to the coil packs?
Pro
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From: Thornton PA
St. Jude Donor '23, '25
This. If no power at the coils, work backward and check the ignition relay.
Tech Contributor
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From: Dyer, IN
Tech Contributor
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
On top of EACH fuse, there are TWO small slots. They are TEST POINTS. Read both of those test points to ground and you should see battery voltage (make sure that the appropriate circuit is ON if required!BC
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Tech Contributor
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Well, you either have a missing/loose ground OR the PCM is not firing any of the coils! How are you reading the DTCs? Are there any CEL or dash messages?
Thread Starter
Pro
Joined: Feb 2009
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From: Ft Lauderdale FL
Thanks Bill,
There are no ground problems . So the PCM could be the culprit. When it went down it was driving and melted the drivers side 02 sensor wires on the headers and oil pressure sending unit wires and stalled but thats it . and they have been repaired. What about the Crank and Cam sensors???
Thanks Bill
There are no ground problems . So the PCM could be the culprit. When it went down it was driving and melted the drivers side 02 sensor wires on the headers and oil pressure sending unit wires and stalled but thats it . and they have been repaired. What about the Crank and Cam sensors???
Thanks Bill
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From: Midland Texas
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Melting Slicks
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From: NY- 2013 Corvette Challenge Champion-2013 Index Combo Champion 2015 CC/MM Champion
St. Jude Donor '07
Did you wash your car before this happened? The only reason I ask is mine did the same exact thing after I washed my car and it turned out there was water in the 2 plugs that go to the pcm...........Paul
Tech Contributor
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Thread Starter
Pro
Joined: Feb 2009
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From: Ft Lauderdale FL
Nothing was wet , it was on the road when it went down. All wires have been repaired all grounds checked and the crank sensor replaced and it still has no spark. I will have the PCM check..
