High idle with clutch pushed all the way
11-12-2009, 08:29 AM
#1
Thread Starter
Join Date: Oct 2009
Location: michigan
Posts: 13
High idle with clutch pushed all the way
I have a 87 4 cylinder manual trans and when I start the car it idles at 3 to 3.5 if I let the clutch out slowly while holding the brake the rpm goes lower the more I let it out. When I am driving as I downshift to stop the idle starts going up again. Has anyone had this issue or know how to fix it?
11-12-2009, 08:19 PM
#2
3rd Gear Member
Join Date: Feb 2008
Location: IL
Posts: 877
Hi,
It could be a vacuum leak. Start by checking hoses as well as any suspect gaskets around the intake. Id also check the throttle plate for carbon buildup as well as looking at the IACV then resetting your base idle and go from there.
Hope this helps.
It could be a vacuum leak. Start by checking hoses as well as any suspect gaskets around the intake. Id also check the throttle plate for carbon buildup as well as looking at the IACV then resetting your base idle and go from there.
Hope this helps.
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