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From experience I'll tell you,,,Take it to the dealer and have it scanned! It can be anything from bad wire connectors or bad wires to one or more sensors out of range. Unless you're rich with a lot of idle time on your hands, get it to a Ford dealer.
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∙ 18y ago
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What would cause a 1995 Ford Aerostar to idle rough?
the radiotor or the cams
What can cause a surging idle on a 1999 Ford Explorer 4L V6?
It is important to know the causes of problems in a vehicle. A surging idle can be cause by a bad o2 sensor, bad fuel pump, or a computer starting to go bad.
Why is your 2005 Ford Escape surging at idle?
my 2002 was doing it, they told me it was supposed to do that. morons.
Will a bad egr on a ford mustang make very loud rattling or tapping sound like something is loose?
No a bad egr will cause surging at idle or bucking while under light acceleration.
On a 94 Honda Civic what will cause it to overheat and cause idle surging?
Your 1994 Honda Civic will overheat when the thermostat is malfunctioning. The overheated engine can experience the idle to surge. The engine should be turned off immediately.
What could cause a ford aerostar 3.0 engine to lope at idle speed?
Check: 1.- PCV vacum hoses 2.- Engine oil cap looseness. 3.- rocker cover gasket
What can cause 1989 Ford F-250 to idle high?
a vacuum leak can cause high idle
What can cause 88 Ford F-350 to high idle?
You can adjust the idle.
Why would a 1986 Ford Aerostar idle fine but hesitates and backfires when driven?
sounds like it could be the timing when it's under a load.
Is compressor surge bad?
How do you know it is surging? The most common cause for a jump in idle speed while the AC is running is when the cooling fan cycles on and puts a draw on the alternator.
What causes a Briggs and stratton engine idle speed go up and down?
The most common cause of engine surging (rev up and down) is a dirty air filter.
Why is my 1995 kia sportage when revved up slow to return to idle Even when i push on the linkage at the intake manifold to slow it down it responds slowly to return to idle?
There is a vacuum leak in the engine. When there is not enough pressure in the air system the car will not idle correctly. This can cause a slow idle, erratic idle, or even a surging idle. Check the vacuum lines and intake for any leaks.
