my idle starts off at 750 warm when i put it in gear it drops to 250

1995 JEEP GRAND CHEROKEE
256,000 MILES
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JAMIE THOMPSON
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  • 1 POST
Then back up what can i do to fix the problem. I already did full tune up,took t so far I done full tune up, cleaned throttle body front to back changed the pcv, map sensor, air filter
Feb 9, 2012 at 11:47 AM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
It sounds like you have a vacuum leak, go here for more info.

http://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

thanks for using 2carpros.com
Feb 9, 2012 at 1:20 PM
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