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1991 Chevy S-10 Stalling and rough running

Tiny
REG SAMPSON
  • MEMBER
  • 1991 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • MANUAL
  • 60,000 MILES
The Engine stalls, hesitates and runs rough when first started and cold. After it warms up it runs fine
Monday, December 17th, 2007 AT 9:55 AM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try testing the ect(electronic coolant temperture) sensor. With an ohm meter the ohms should change as the engine warms, it also acts like a choke for TBI.
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Monday, December 17th, 2007 AT 1:16 PM
Tiny
2JUSTIN0
  • MEMBER
  • 7 POSTS
Check the pre heater house located on the driver side. Its a flexible hose located on the manifold and goes into the air intake, it acts as a choke and its sole purpose is cold weather starting, mine comes off every so often and my truck will do the same thing.
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Sunday, December 23rd, 2007 AT 12:20 AM

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