idling problems

1994 FORD RANGER
150,000 MILES • 6 CYL • 2WD • MANUAL
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BRIAN 25
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  • 4 POSTS
have a 94 ranger 4.0. im having idling problems if im driving and come to a stop the rpm's stay up at 1700 for a few secconds then come down. i changed the iacv and the tps. i also noticed if the truck is running and disconnect the mass air or the iacv my truck dosnt stall or have a drop in rpm's. do i have a bad computer?



Jan 24, 2011 at 10:09 AM
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RASMATAZ
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  • 75,988 POSTS
Clean the MAF sensor with an electronic cleaner CRC and test it
Jan 24, 2011 at 10:15 AM
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BRIAN 25
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  • 4 POSTS
cleaned the MAF didnt look dirty sprayed it down anyway let it dry and put it back. drove the truck and its still doing it. i also checked all my vaccum lines and there connected. any other advice??
Jan 24, 2011 at 11:03 AM
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RASMATAZ
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  • 75,988 POSTS
Inspect the air tube all the way to the throttle body for leaks and also try cleaning out the EGR valve and see what happens
Jan 24, 2011 at 11:40 AM
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BRIAN 25
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  • 4 POSTS
intake tube looks good. the egr didnt have any soot build up on it. i do have a throttle body spacer could the gasket have gone bad?? or replace the egr?
Jan 24, 2011 at 12:01 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Try cleaning out the throttle body and check the gasket on it-
Jan 30, 2011 at 1:59 AM
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