Need some help
Thread Starter
Race Director
Joined: Oct 2011
Posts: 16,086
Likes: 819
From: Dallas Texas
2025 C4 of the Year Finalist - Modified
Need some help
What's up guys/gals. It started yesterday, I went to go pump gas and the car didn't want to start. I waited about 5 minutes, then she started like normal. When the engine didn't start, the engine was at 160 degrees. Today, I went WOT. When I got to about 40-45 MPH, the car didn't shift and the engine turned off, and the service engine soon light came on. Luckily I made it home. I wanted to put the C4 in the garage, I go back outside to see if it would start, and it did. Started up completely normal. Oh, when the engine started back up, there was no service engine soon light on. Car is a '93 LT1.
Any ideas?
Any ideas?
Last edited by 1993C4LT1; Jun 13, 2013 at 09:23 PM.
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
No start, shuts off when hot. I put money on the ICM.
On second thought, need the answer to Vetteoz question.
Crank, no fire ICM
No crank, check the 'security' light on the dash. If it is on when you trun the key, it's a vats issue.
On second thought, need the answer to Vetteoz question.
Crank, no fire ICM
No crank, check the 'security' light on the dash. If it is on when you trun the key, it's a vats issue.
Last edited by lt4obsesses; Jun 14, 2013 at 01:55 AM.
Thread Starter
Race Director
Joined: Oct 2011
Posts: 16,086
Likes: 819
From: Dallas Texas
2025 C4 of the Year Finalist - Modified
Thanks for the responses. No, the security light wasn't on when the car wouldn't start. It would crank, just wouldn't fire up. What really scared me was when I was doing WOT and the engine turned off.
Thread Starter
Race Director
Joined: Oct 2011
Posts: 16,086
Likes: 819
From: Dallas Texas
2025 C4 of the Year Finalist - Modified
lt4obsesses was correct. My dad helped me today, and we replaced the ICM. Problem solved, Vette is well! 
Thank you all for the help.
Thank you all for the help.
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