Mechanics

IDLE

1994 Geo Tracker • 161,000 miles

When I start the car it idles high but when I unplug the vacuum from the MAP sensor it idles good what could be wrong?
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Williamarnett92
July 5, 2012.



Do you have any codes in the computer?Also have you checked for vacuum leaks yet?

Saturntech9
Jul 5, 2012.
No codes and I just replaced the vacuum lines

Tiny
Williamarnett92
Jul 5, 2012.
I would get a can of carb spray let it idle and spray around all vacuum sources intake manifold hoses etc. If the rpms go down it stumbles or dies you found a vacuum leak.

Saturntech9
Jul 5, 2012.