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Chevrolet
Suburban
Engine
Symptoms
Stall at Idle
Will not idle after starting the engine?
GARRETT VASKA
MEMBER
1998 CHEVROLET SUBURBAN
5.7L
V8
4WD
AUTOMATIC
235,000 MILES
The vehicle listed above is an LT. It will start, run for a couple seconds and then shuts off.
Thursday, June 8th, 2023 AT 2:47 PM
1 Reply
KEN L
MASTER CERTIFIED MECHANIC
48,363 POSTS
This sounds like a vacuum leak, or the throttle body needs to be serviced. here are three guided to help us get started on fixing the problem:
https://www.2carpros.com/articles/stall-at-idle
Use this guide when the engine is cold only:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
and
https://www.2carpros.com/articles/throttle-actuator-service
Please run the codes as well and go over these guides and get back to us.
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Friday, June 9th, 2023 AT 11:48 AM
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