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92 lt1 starting problems.

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Old Jan 29, 2016 | 01:03 PM
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Default 92 lt1 starting problems.
The other day I was riding down the road and my car just shut down. Checked fuses and coil fuse was blown. Replaced the fuse and tried starting the car. Fuse immediately blew again. Ideas/thoughts?
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Old Jan 29, 2016 | 01:20 PM
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The coil fuse is a 10A fuse. Either the coil has shorted to ground or the ICM has shorted causing excess current thru the coil. Unplug the ICM first and try another fuse. If the fuse is OK then the ICM might be bad. If the fuse blows, the coil would seem to be the problem.

Also check the wiring to see nothing has shorted thru any insulation of any wires.
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Old Jan 29, 2016 | 01:23 PM
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Where is the ICM located?
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Old Jan 29, 2016 | 01:27 PM
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Originally Posted by 1stVetteFinally
Where is the ICM located?
on my 94 it is attached to the coil just take them off and take them in to be tested. don't forget the thermal grease
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Old Jan 29, 2016 | 01:42 PM
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If you're car is on the other side of 100,000 miles, you might just look into replacing the coil and ICM as preventive maintenance. They are normal wear and tear parts.
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Old Jan 29, 2016 | 01:44 PM
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Originally Posted by TorchTarga94
If you're car is on the other side of 100,000 miles, you might just look into replacing the coil and ICM as preventive maintenance. They are normal wear and tear parts.
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Old Jan 29, 2016 | 02:10 PM
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disconnected the ICM, installed new fuse, turned car over, fuse didn't blow, reconnected ICM, turned car over, fuse blew. Looks like ICM is bad
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Old Jan 29, 2016 | 03:11 PM
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I replaced the ICM on my '94 using these steps:

https://www.corvetteforum.com/forums...ol-module.html
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Old Feb 11, 2016 | 09:21 PM
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new ICM installed, she's purring like a kitten and roaring like a Lion again
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Old Feb 11, 2016 | 09:29 PM
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Originally Posted by 1stVetteFinally
new ICM installed, she's purring like a kitten and roaring like a Lion again
Good job you did use thermal grease.
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Old Feb 11, 2016 | 09:51 PM
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Yes I did
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Old Feb 11, 2016 | 09:58 PM
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