LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Car runs like #$*@ when cold, but fine when warmed up...

Old Aug 16, 2005 | 09:38 PM
  #1  
FuryZ28's Avatar
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Joined: Jun 2001
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From: Lawrence, KS, USA
Car runs like #$*@ when cold, but fine when warmed up...

Any idea here guys? It will run fairly rough (coughing and sputtering) under load when it's cold and once it hits about 120-140*F, everything smooths out and it drives fine. Any guesses??
Old Aug 18, 2005 | 05:48 AM
  #2  
slopokrodrigez's Avatar
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Re: Car runs like #$*@ when cold, but fine when warmed up...

Few more questions to help us.

We need more info about the vehicle. Year, tranny, mods, what is still on the car stock, milage, if any thing has been done like tune up items etc.....
Does it crank a lot to start either cold or hot?
What's your fuel milage like since this problem occured?
If it sits and cools off to let's say 100*F, how does run then?
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