94 Bonneville SSE Cranks but wont start... need advice! - 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 12-29-2006, 05:54 PM   #11
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Not the icm... still crank, no start :( What should we try next?
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Old 12-29-2006, 05:58 PM   #12
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We're heading that way with a scantool and a couple manuals (I have 93 and 95 FSM'*, and the 92-99 Chiltons).

I suspect a bad crank sensor.
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Old 12-29-2006, 06:01 PM   #13
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Can you check for power getting to the ICM? The pink/black (pink for some years) wire on the connector going to the ICM should have 12 volts while the key is in the run position.

Did you check all the fuses? Don't overlook the fuse panel under the dash on passenger side.
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Old 12-29-2006, 07:50 PM   #14
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Ted was right... it was a blown fuse that got overlooked. Duh, we feel really stoopid but it was definitely a learning lesson Thanks so much to will for helping us out! We were completely lost without him!

Just as a sidenote, the icm we bought did not work at all with our car but when we put the old one back in it worked fine
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Old 12-29-2006, 08:03 PM   #15
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Glad to hear you got it going. Now I'm wondering what made the fuse blow. I think the fuel pump & ICM share the same fuse and I think we had a couple cases where the oil pressure sending unit caused that fuse to blow. Is your oil pressure gauge working OK? I'll check a wiring diagram later & see what I find.
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Old 12-29-2006, 08:18 PM   #16
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Ya our oil pressure guage is fine and I believe that Will determined that our fuel pump and icm are actually on seperate fuses. There was no power to the icm but we could still hear the fuel pump when trying to start the car. Funny enough our cd player stopped working a couple of months ago and it now miraculously works as well.
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Old 12-29-2006, 10:23 PM   #17
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I had the 93 and 95 FSM'* with me, and the 93 called for the FP and ICM on the same relay. The 94 was NOT. I'd have to go back and check that circuit though. I also suspect SOMETHING wrong somewhere in there to tag that fuse.

Funny, when I found the fuse, I asked if he had 50 cents (for a new fuse). He started digging in his pocket.

I'll do some more digging in the FSM'* and try to point out some things to watch for. It won't be the coils. They're isolated by internal coils in the ICM.

Keep in mind that was a new Duralast ICM from Autozone. Re-affirms my feeling that they are sub-par parts at best.

The trip cost me a pair of new shoes and a video game for Katie.
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Old 12-30-2006, 10:16 AM   #18
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The on-line diagrams I have access to show the ICM & fuel pump both getting power from fuse #6. It'* very strange that the CD player started working. What # fuse did you guys change?
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Old 12-30-2006, 10:30 AM   #19
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It was fuse 6, but I deliberately listened for the fuel pump to prime with key on, and heard it. I was at the RR tire when Henry turned the ignition on. The fuse WAS blown at that point.
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Old 12-30-2006, 10:38 AM   #20
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Very strange - hopefully the problem won't repeat but I'd keep a spare fuse in the car.
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