High rpm (3500) after gasket replacement - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 3 (permalink) Old 07-15-02, 02:46 AM Thread Starter
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Join Date: Apr 2002
Location: Melbourne
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High rpm (3500) after gasket replacement

I have received this query:

"I don't know if you can help me but i replaced the head gasket on my mpi EA and when I started it up it went straight to over revving. I have check the acclerator cable and the butterfly in the air intake and all are ok ! ! ? ?"

Jack Travis, E-Series Acting President

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post #2 of 3 (permalink) Old 07-15-02, 03:09 AM
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Check the Idle speed controller.
This is located on the Throttle Body, and is used by the Computer to control the Idle speed.

Basically, the Plunger on these things can get blocked up, (Especially If you have an aftermarket Oil based Air Filter), and If the Plunger sticks, then it is quite common for the Car Idle to be All over the place.
(Mine was revving out on 2-1 Gear Changes, and a couple of months later after puliing out from my home, the car started Idling around 2500 RPM at the first stop light I came to.

Check out
For more Info on how to clean this thang.

Basically this is the same one that is used on EA-EL-AU Models, but because the Intake Runner Layout is different, the ISC is located in different places.

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post #3 of 3 (permalink) Old 07-15-02, 11:30 PM
Join Date: Mar 2002
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Check all the vacuum lines dude, you may have left one off. Check the rear of the manifold especially, and keep an eye out for damaged hoses.

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