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soudns like it is not getting enough fuel, try replacing the fuel filter, if that does not work check the fuel pump
there is a possibility that it may be a vaccum leak aswell. check all you lines.
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∙ 14y ago
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What could cause a rough idle on a 2000 mercury cougar when in drive?
I just changed fuel filter,pump,sparks plugs and wires on mine and it runs great!
Why would 93 mercury cougar runs rough missing?
Need a little more information. there are a number of reasons why your cougar would run rough. Anywhere from the mass oxygen sensor to the idle control sensor, oxygen sensors and on and on.
What would cause a 2000 ford focus not to start first time in mornings - you have to put foot on gas for it to start?
adjust your idle screw at your throttle body and check your cold idle stage stitch at the end of your accelerator cable at your throttle body. it may also need adjusting
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Idle Air Control Valve would be a good place to start.
What would make my 2000 alero idle at 2000 to 2500 rpm's after driving for about 30 mins?
could be: sticking throttle linkage, idle air control malfunction, or in emission system.
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1. Engine Idle speed set too low? 2. One or more cylinders misfiring at low idle? (Spark plugs, plug wires, distributor cap or distributor rotor would be the common culprits.)
How do you adjust idle on a 2001 Mercury Cougar?
You can't - it's all controlled from the PCM.
What would cause a Chevrolet 350 to not idle it will start and run under throttle but will not idle at all?
vacuum leak? carburetor adjustment?
Why would a 2000 Hyundai Sonata 4-cylinder LX shake at idle?
My 2000 V6 Sonata shakes while at idle also. I discovered I need an oxegen sensor and more importantly an "Idle Air Control Valve". 239.00 is the average and hard to find. .
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basd fuel
What would cause a 2000 Toyota Tacoma to surge at idle and while driving?
maybe the clutch
Rough idle when cold cougar?
If this is a '99 through '02 Cougar, this sounds like the so called "Moosing" problem, which is a problem with the Idle Air Control Valve (IACV), and is fixed by taking the IACV out, its connected to the upper intake manifold, and either cleaning it thoroughly, or replacing it.
