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2002 Chevy silver ado 4.3 l idle problem


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Jwilson
New User

Sep 10, 2013, 7:51 PM

Post #1 of 6 (1049 views)
2002 Chevy silver ado 4.3 l idle problem Sign In

2002 Chevy silver ado won't hold idle anymore.repaced intake gasket on the 4.3l engine but still dies when clutch is engaged.runs fine otherwise.also replace tps and idle air control valve


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 11, 2013, 3:13 AM

Post #2 of 6 (1029 views)
Re: 2002 Chevy silver ado 4.3 l idle problem Sign In

When what clutch is engaged? AC?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Jwilson
New User

Sep 11, 2013, 9:52 AM

Post #3 of 6 (1017 views)
Re: 2002 Chevy silver ado 4.3 l idle problem Sign In

No I'm sorry it's a manual transmission so when I come to a stop or as soon as I depress the clutch to stop it dies however it will not hold idle when it's in neutral either.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 11, 2013, 11:20 AM

Post #4 of 6 (1013 views)
Re: 2002 Chevy silver ado 4.3 l idle problem Sign In

  First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Jwilson
New User

Sep 11, 2013, 5:00 PM

Post #5 of 6 (1004 views)
Re: 2002 Chevy silver ado 4.3 l idle problem Sign In

Iac and tps have both been replaced and cannot find any vacuum leaks..I am getting a lean code but will try cleaning the throttle body.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 11, 2013, 5:02 PM

Post #6 of 6 (1003 views)
Re: 2002 Chevy silver ado 4.3 l idle problem Sign In

If you're getting a lean code then you need to look harder for vacuum leaks.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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