Holy Crap! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-11-2004, 05:47 PM   #1
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Default Holy Crap!

Hey, I just changed the coil packs on my SSEi and it wouldn't start, so I caecked the firing order and it was all ok. I pulled the new ones and reinstalled the old ones and it still won't start! Crap, it was running when I parked it! I am desperate! I need my car! Help asap [email protected]
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Old 03-11-2004, 07:06 PM   #2
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Default holy crap

yes I am getting fuel, I don't think it is sparking, just checked, no spark and I have the new coils in it. I didn't unhook the battery before I cahnged them? make a difference?
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Old 03-11-2004, 09:33 PM   #3
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Default Help please!

could I have fried the ignition module?
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Old 03-11-2004, 10:07 PM   #4
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That'* my bet. If you killled it, NO coils would work. Coils go 1 at a time, and some would still work if they were bad. Check all the connections to the ICM first, and then double check. Then try it again.
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Old 03-11-2004, 10:21 PM   #5
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There is no easy way to check the ICU other than a known good spare. I'm curious though, there should be no current flow through the icm with the ignition switch off, although removing the ground lead off the battery is always the best policy.
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Old 03-11-2004, 10:35 PM   #6
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Default Thank you all!

Thanks guys, I just took the ICM to advance auto because they said they could test it when I called, but then they couldn't when I got there! I will try to find somewhere to take the ICM tomorrow. I went through and checked every fuse that had to do with ignition and the like, but they all check out. I guess I won't be driving tomorrow and if it is the icm, that is an expensive fix! Keep the ideas coming. I haven't even really got to feel the how it runs with the supercharger yet with all these problems!
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Old 03-12-2004, 06:39 PM   #7
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Default gonna buy a new one

I am just going to go buy a new one, if it works, great! If not I take it back and get my money back and try the cam sensor
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Old 03-12-2004, 08:18 PM   #8
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Default New ICM and it won't go

I just replaced the ICM and it still won't start. There isn't some anti theft kill switch on these is there? There is still no spark and I do not even no where the cam sensor is. My Haynes gives a vague reference at best. *#@t I have already spent $200 just trying to get it to run like it did when Ipulled in the drive yesterday! I am at my wits end!
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Old 03-12-2004, 09:14 PM   #9
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Yes there is a secruity device but if you've never had a problem before it should be fine, as you say it was running yesterday before you swapped out the coils?

Try this as it costs nothing, disconnect the negative on the battery and leave it off for an hour. Put it back on and try the ignition with your original coils.
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Old 03-12-2004, 09:28 PM   #10
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Default okey dokey artichokey

OK, gonna go pull the cable, pull the new coils and ICM and swap them out for old, and I will let you know in an hour!
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