intermittent high idle


backerm

15+ Year Member

Joined
Feb 24, 2008
Messages
38
Points
3,101
Age
49
City
Tucson, AZ
Vehicle Year
1988
Transmission
Manual
I've got a 1988 Ford Ranger 4x4, 2.3L. Been having this problem for over a year intermittently. But for the past 3 months it has been happening the same way every time I start it up. It revs to 2000 rpm. When I turn the ignition off and then start it back up after it warms up. Then it idles at 800 and runs good.

Here are some things I've done:

major tune-up
cleaned and tested the EGR
replaced, ECT, IAC, MAP, O2 sensor
checked the TPS
throttle cable
cleaned throttle body, and injectors.

Anyone have any suggestions?
 
Last edited:
souds like the idle air bypass sticking. it is about 40 bucks.
 
yep I've tried replacing that months ago. I hate to throw parts at any car. But this is really irratating me.:icon_confused:
 
Did you reset the IAC when you put the new one on ?
 

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