Question about 2004 Ford F150
I have a 2004 f150. There is a hissing sound when the accelerator is pressed and also when the engine is cut off. It sounds like it is coming from under the dash around the gas pedal. Does anyone know what could cause this.
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Posted on Jan 02, 2017
SOURCE: 2005 Ford Escape Hissing sound
The power brake booster has a bad valve. I can't suggest where to find a new valve for it, but you can buy a rebuilt replacement. They are usually not hard to put on.
Posted on Jul 02, 2009
Sounds like pinging or detonation. Try a tank of premium fuel. Check the engine for correct ignition timing
Posted on Oct 25, 2014
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