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Cold the motor wont idle and runs bad?

Tiny
LISA SHOEMAKER
  • MEMBER
  • 1988 DODGE TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 12,700 MILES
When its cold the motor wont idle and runs bad. When its warm out it idles and runs fine throttle body no choke
Thursday, December 27th, 2007 AT 6:08 PM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 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.
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Thursday, December 27th, 2007 AT 6:17 PM
Tiny
ZEPHYUS
  • MEMBER
  • 1 POST
What if it's a tbi engine
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Thursday, December 19th, 2024 AT 3:34 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 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.
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Friday, December 20th, 2024 AT 9:29 AM

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