2004 GMC Safari

2004 GMC SAFARI
172,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
JUSTINF89
  • MEMBER
  • 22 POSTS
I'm trying to set the idle on my safari van and was wondering how I can set up a tachometer to it? Thanks.
Apr 8, 2010 at 3:36 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Idle not adjustable is controled by PCM via Idle Speed Controler
Apr 9, 2010 at 11:02 AM
Avatar
JUSTINF89
  • MEMBER
  • 22 POSTS
What would cause it to idle too low most of the time? Is there a way to hook up a tach anyway?
Apr 9, 2010 at 12:12 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
The IAC valve maybe carboned up remove and clean with carb cleaner passageways too. If no check engine light on then carbon likely. Also look for any vacuum leaks. as for TACH not sure check with like Summit see what they have.


https://www.2carpros.com/forum/automotive_pictures/198357_Graphic_443.jpg

Apr 9, 2010 at 2:03 PM
Avatar
JUSTINF89
  • MEMBER
  • 22 POSTS
Thanks for the help. I will try and clean out the IAC with some carb cleaner or something. May I as where you obtained that picture?
Apr 9, 2010 at 5:53 PM
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Mitchell OnDemand.com
Apr 12, 2010 at 9:39 AM