Question about 2004 Ford Explorer
Posted by Anonymous on
The computer should have coded a problem. If it did not code it is usually a vacuum or compression problem. With the motor running use a spray bottle of water and go along the seams of the intake manifold, Brake booster, EGR valve, and anything that has a vacuum line and spray them.
If you have a vacuum leak the water will be drawn in and the idle will be affected. That would be the gasket or part to replace. Sometimes on 4.6 SOHC engines the area under the Airhorn clogs the intake ports for the EGR. The groove under the gasket needs a cleaning.
Autozone and Oreillys will scan your Ford free. There may be a problem with the diagnostic system in your vehicle and at least you would be informed.
Posted on May 16, 2010
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Posted on Jan 02, 2017
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