1992 Lt1 cold start problem
Thread Starter
Intermediate
Joined: Feb 2012
Posts: 30
Likes: 0
From: Carlsbad CA
1992 Lt1 cold start problem
I have a 1992 Lt1 stock engine w/ over 134k miles on it. When I start it cold it has a very rough idle sometimes idling very high almost 2k rpm. I drove it last night it was burning gas (white smoke) sputtering/stalling numerous times. Although, once it warms up the car runs perfectly fine. I'm not really sure where to start the problem could come from a million different places. I am going to bring it to a shop in a couple days to check if it has thrown any codes up, but if anyone has had this problem or has a hunch on what the cause might be I would appreciate your help.
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
White smoke is NOT gas. Rich=Black Smoke, Oil=Gray Smoke, WHITE=COOLANT.
The water vapor is not smoke, that is normal. When they smoke like there is a problem you'll know it. IT bellows out big time.
How does it run warm/hot?
Start with the basics, fuel pressure, spark, air, compression, etc...
Also, if you have a high idle like 2K, either you have a huge vacuum leak or your IAC (Idle Air Control) is doing something strange for any number of reasons.
The water vapor is not smoke, that is normal. When they smoke like there is a problem you'll know it. IT bellows out big time.
How does it run warm/hot?
Start with the basics, fuel pressure, spark, air, compression, etc...
Also, if you have a high idle like 2K, either you have a huge vacuum leak or your IAC (Idle Air Control) is doing something strange for any number of reasons.
Thread Starter
Intermediate
Joined: Feb 2012
Posts: 30
Likes: 0
From: Carlsbad CA
