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.
I just changed fuel filter,pump,sparks plugs and wires on mine and it runs great!
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.
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
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.)
could be: sticking throttle linkage, idle air control malfunction, or in emission system.
Idle Air Control Valve would be a good place to start.
You can't - it's all controlled from the PCM.
To adjust the idle on a 2000 Polaris Magnum, first, locate the idle adjustment screw on the carburetor. Start the engine and let it warm up to operating temperature. Then, while the engine is running, turn the idle adjustment screw clockwise to increase the idle speed or counterclockwise to decrease it, until the desired idle speed is achieved. Finally, ensure the engine runs smoothly without stalling at the adjusted 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. .
vacuum leak? carburetor adjustment?
basd fuel
maybe the clutch