No cold idle

hi-perfcam · 10-23-2008, 07:29 PM

Hello guys, Great forum you have here! I just joined and It sounds like you know your stuff. I have a 92 1500 4x4 I'm getting for $800 bucks because it wont idle when its cold. If you just barley give the excellerator pressure it runs great. when it's warm it runs great. just when you first start it up is the problem. being a throttle body I was thinking it just might be dirty or a sensor. What are your thoughts??

76silverado · 10-23-2008, 07:43 PM

Yeah I'd clean it reall good then see what happens.

mudseeker · 10-23-2008, 08:30 PM

check for vacuum leaks, clean the IAC............pretty much, give it a good tune up.

almost forgot, welcome to the forum from a fellow michigander.

Case 7230 · 10-24-2008, 04:30 AM

Quote:

Originally Posted by mudseeker

check for vacuum leaks, clean the IAC............pretty much, give it a good tune up.

almost forgot, welcome to the forum from a fellow michigander.

I agree, I would clean the Idle Air Control valve. If necessary go to the repair section of autozone.com for details. I would also see if there are any error codes stored. By the way the truck sounds a good buy. Good luck.

leolkfrm · 10-24-2008, 07:51 AM

is the idle high when warm? check anything drawing vacuum. Pcv or egr could be cracked open and when warm compensate for the lean condition

10-23-2008, 07:29 PM	#1
hi-perfcam Junior Member Join Date: Oct 2008 Location: grand haven, michigan Posts: 8	No cold idle Hello guys, Great forum you have here! I just joined and It sounds like you know your stuff. I have a 92 1500 4x4 I'm getting for $800 bucks because it wont idle when its cold. If you just barley give the excellerator pressure it runs great. when it's warm it runs great. just when you first start it up is the problem. being a throttle body I was thinking it just might be dirty or a sensor. What are your thoughts??

10-23-2008, 07:43 PM	#2
76silverado Senior Member Join Date: Oct 2008 Location: NW Arkansas Posts: 355	Yeah I'd clean it reall good then see what happens. __________________ http://s513.photobucket.com/albums/t...t=HPIM1105.jpg '76 Silverado10 Custom Deluxe, 350 4barrel, th350 auto FULL TIME FOUR WHEEL!

10-24-2008, 07:51 AM	#5
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	is the idle high when warm? check anything drawing vacuum. Pcv or egr could be cracked open and when warm compensate for the lean condition __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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10-23-2008, 08:30 PM	#3
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,374	check for vacuum leaks, clean the IAC............pretty much, give it a good tune up. almost forgot, welcome to the forum from a fellow michigander.