Help - My 95 SE Bonnie Lies Dead In The Driveway - Page 2 - 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 10-28-2004, 10:07 PM   #11
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Quote:
Originally Posted by John Deere Boy
i have a good ICM in my garage...unfortunately i'm halfway across the continent from you
Thanks, after today I needed the chuckle.

Removed Coils and ICM, cleaned contact areas, still no fire, just cranks over. So, tomorrrow I'll change the ICM (soonest I can get ahold of one), and if the car still just cranks, then I'll change the Cam and Crank sensors.

Thanks for all the help guys!

Wendy
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Old 10-29-2004, 04:35 PM   #12
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"tries to fire, no go".

Timing chain. From my experience, they jump a few teeth during a startup, and have nearly no power at all. Shut it off, and the next time it'* jumped far enough that its not gonna start. It usually jumps so far that the lack of compression and massively mistimed spark means no go.
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Old 10-29-2004, 04:44 PM   #13
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Quote:
Originally Posted by 95guy
"tries to fire, no go".

Timing chain. From my experience, they jump a few teeth during a startup, and have nearly no power at all. Shut it off, and the next time it'* jumped far enough that its not gonna start. It usually jumps so far that the lack of compression and massively mistimed spark means no go.
if this happened, wouldn't the PCM tell the discrpency between the cam and crank sensors and set a code?
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Old 10-29-2004, 09:47 PM   #14
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IT'* ALIVE !
IT'* ALIVE !

Got the ICM (we have auto recyclers here in Sacramento - $53.00) and it came with the Coil Packs. Removed the Coil Packs and put mine on the new ICM, 5min later with everything bolted back on, car fired up on the first try!

Purred like a kitten again! Took it out (testing it) ~ and everything seems great again.

Thanks Willwren, the ICM was the problem.

Wendy
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Old 10-29-2004, 10:39 PM   #15
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Default ICM

Just had the same problem with my 90 SSE.
It died on the highway and would not refire until I removed the ICM wire harness and re-installed it.
I wouldn't throw the old one out as it could have been bad terminal contacts on the ICM harness.
I would remove the wire harness once more and re-tighten the metal clips that attach to
the pins on the ICM. This will assure future trouble free operation.
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Old 10-30-2004, 03:10 PM   #16
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Glad you got it going! Another West Coast Bonneville lives on

As far as the timing chain suggestion is concerned, with over 3000 cars here, I have yet to see one jump a single tooth.

We have a very superior tensioner/chain setup on the 3800'*.
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