found out why my engine revs high

[dustyinthedirt]

i was searching through the forums and stumbled apon the parking brake recall and decided to see if my year is on the list. while searching i found this

 

 

 

1990 Jeep Comanche Recall

Item Affected: VEHICLE SPEED CONTROL: CRUISE CONTROL

Date Announced: 01/04/1991

Description of Recall:

MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE SPEED IMMEDIATELY AFTER STARTING ENGINE.

Action Need To Fix It:

REPLACE THROTTLE POSITION SENSORS WITH SENSORS THAT WOULD SEND CORRECT SIGNALS TO THE FUEL INJECTION SYSTEM.

FIND YOUR LOCAL Jeep Service Center

 

when i start my truck it revs to about five thousand and then quiets back down to normal. i found this on the website http://www.dealerrater.com/recalls/Jeep/Comanche/  there are many other recalls as well on these things

[Blue XJ]

It could be that, it could also be a faulty and/or dirty/sticky IAC on the throttle body.

[MuddFoot]

I'm with blue xj on this. i don't think you still have the factory tps unless you have owned it from day one.....

[joester1908]

Try adjusting your TPS with a multimeter. If you can't get it in the correct range, then I'd say start thinking about replacing it. They're right, most likely it has been replaced already. 

[joester1908]

Link to TPS adjustment, just in case you need it.

http://www.naxja.org/forum/showthread.php?t=1072534

[cruiser54]

Link to TPS adjustment, just in case you need it.

http://www.naxja.org/forum/showthread.php?t=1072534

That is also right here on Comanche Club along with 26 other mostly Renix Tips. Click the link below.