Idling problems

BRIAN 25

MEMBER
1994 FORD RANGER
6 CYL
2WD
MANUAL
150,000 MILES

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?

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Clean the MAF sensor with an electronic cleaner CRC and test it

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Monday, January 24th, 2011 AT 6:15 PM

BRIAN 25

MEMBER
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?

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Monday, January 24th, 2011 AT 7:03 PM

RASMATAZ

MECHANIC
75,992 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

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Monday, January 24th, 2011 AT 7:40 PM

BRIAN 25

MEMBER
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?

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Monday, January 24th, 2011 AT 8:01 PM

RASMATAZ