cold the motor wont idle and runs bad?

1988 DODGE TRUCK
12,700 MILES • V8 • 4WD • AUTOMATIC
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LISA SHOEMAKER
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  • 1 POST
when its cold the motor wont idle and runs bad. when its warm out it idles and runs fine throttle body no choke
Dec 27, 2007 at 6:08 PM
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MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
Check the operation of the choke, may need to install a new choke thermostat, also check the exhaust manifolds for a heat riser, if it's frozen, either free it up or replace it, this aids in warming the engine, but once warm, it will open and allow exhaust to flow...
Dec 27, 2007 at 6:17 PM
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ZEPHYUS
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  • 1 POST
What if it's a tbi engine
Dec 19, 2024 at 3:34 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,354 POSTS
Then you probably have a vacuum leak, please go over this guide which will help you fix it:

https://www.2carpros.com/articles/stall-at-idle

Please go over this guide and get back to us.
Dec 20, 2024 at 9:29 AM
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