Questions & Answers for: Mercury Cougar surging at idle

car idles low, stalls after start When starting my engine it will start up and stall or idle at a low RPM around 400-500. To start i have to put foot on the gas and keep it at about 1500 rpm and ...

idle surging She starts up just fine at anytime of the day or night, runs fine anywhere above idle, it's just at idle where she surges; in or out of gear even when I come to a stop & reach idle it

my 97 mercury cougar xr7 is burning way too rich and is idleing rough.what can i do Get a PCM test for fault codes. It could be an oxygen sensor or MAF sensor. Free test at AUtozone if check engine ...

I have a 2000 Cougar. Engine light is on, car idles high, has a sporatic drive and has completely died on me one time while driving. Was put on the scope to find problems but the mechanic couldn't ...

...surging losing power at acceleration and gaining as you go along the way 2002 mertcury cougar v6 and spurtering at idle Thanks for choosing FixYa and welcome to the site. Have you tried to change the ...

2002 mercury cougar v6 is idling way to high I have replaced the egr, egr position sensor, egr vacumn solenoid, and the idle air control. I have a p1508 code (icv bad or open / short in circuit) i ...

i have a 1997 mercury cougar starts up it surges up and down in drive it cuts off hot are cold when it starts it surges it idle s pu and down put it in drive sometime it cuts off You will need to have

... need more info is the check engine light on?   you said it shudders  is it missing or has a surging idle ( high and low)   does it die when it goes low idle or stay