93 Ranger 3.0 Engine Races to 3grand briefly and then comes down.

John Regas · Aug 17, 2007

Has anyone experienced their Rangers engine constantly racing up rpms to about 3000 and staying there for about ten seconds and then coming back down to a more normal rpm. It seems to happen only in the summer hot and humid months.

ForOffRoadDriving · Aug 18, 2007

mine does that, but i have a 2.3 and sometimes it will just start idleing 1000 rpm higher then normal. it also idles down when i depress the clutch.........fords are wierd????

almostclueless · Aug 18, 2007

Mine does it on occasion. I have bought the o-rings that seal the injectors in the intake, thinking they might be causing a vacuum leak, but haven't gotten to replacing them.

Wicked_Sludge · Aug 18, 2007

start with the basics that have already been suggested. check for vacuum leaks (anywhere, not just the injector o-rings). clean your IAC solenoid. also check your throttle cable and plate for any binding/sticking.

93 Ranger 3.0 Engine Races to 3grand briefly and then comes down.

John Regas

10+ Year Member

ForOffRoadDriving

15+ Year Member

almostclueless

15+ Year Member

Wicked_Sludge

15+ Year Member

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