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Emissions and Exhaust Systems
Geo Tracker
Ford F-150

High revving of engine 5000 - 6000 RPMs until it warms up on a 1996 Geo Tracker what is the cause of this?


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Wiki User
2015-07-15 21:50:25
2015-07-15 21:50:25

it could be the coolant temp unit. it senses the engine temp and adjust the throttle occordingly so the engine can easly worm up to operating temp. when i first start my 1990 tracker up, it will idle at around 2,000 rpm until it warms up then it will idle at around 700 rpms.

automatic idle switch.Nah. Supprised that your engine hasn't 'gernaded'! Something's mechanically sticking in WOT (wide open thottle) when you first start up; like the throttle plate/accellerator cable???

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You can tell. If he's trying to impress you, he'll be revving it, and if you don't look over and notice he'll keep on revving it until you do look over. if he's just giving it gas, he'll rev it only once or twice.

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It will cause those and eventually will shut down your engine until the filter is changed or cleaned.


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