Question about 1997 Mercury Cougar XR7

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97 mercury xr7 cougar idles high while in park and driving

When i start my car it tends to idle at like 1500 2000 rpms... i think it mite be a sensor, but i am not sur.. i had a dignostics for errors and non were found. Also while driving it idles up and down no matter how fast i am going

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  • 62 Answers

Check air flow meter

Posted on Jul 29, 2009

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Why when i start my 1996 mercury cougar xr7 it idles down and shut off?

Could be a faulty idle air control valve, or dirty throttle body.
The computer uses the valve to control idle speed.

Jul 31, 2012 | 1999 Mercury Cougar

1 Answer

I have a 1997 mercury cougar starts up it surges up and down in drive it cuts off

You will need to have the Ford dealer run an active engine running test with a scan tool to see what fault shows up.

Jun 07, 2012 | 1997 Mercury Cougar XR7

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Radiator hose is swelled up

A radiator hose that swelled up is caused by the hose breaking down, we call this a "soft hose" and it must be replaced ASAP. As far as the high idle goes this is caused either by an engine vacuum leak or a defective automatic idle speed control valve. You need to have the dealer run some basic testing with a tool called a scanner to see what is going on.

Feb 01, 2012 | 1993 Mercury Cougar

1 Answer

My 97 Cougar idles at about 1500 RPM at a stop and will accelerate to 40mph without applying the accelerator? Seems to bea problem at higher speeds too. What could be causing this?

Could be a faulty IAC (Idle Air Control) motor. Get this checked out because it will wear out your brakes quick, not to mention fuel mileage, Good luck, Gary

Jul 28, 2010 | 1997 Mercury Cougar XR7

1 Answer

Replace tps in 92 cougar/

check and clean the iac first. this controls idling on todays cars.

May 25, 2010 | 1992 Mercury Cougar

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3.8L '97 Mercury Cougar XR7 Boston LE w/idle surging

try cleaning the throttlebody if that doesn't help unplug the mass air flow sensor and see if it smooths out

Jan 04, 2010 | 1997 Mercury Cougar XR7

1 Answer

Mercury xr7 starts then starts coughing and chocking like not

My cougar does the same, it starts and then about 1 minute later (or so) the check engine light comes on and the car idles really high, with black smoke out the exhaust. It stays in second gear i think and it will not shift out of it. Max speed is 40 mph with the rpms screaming, it will go off after a long time but this is agrivating. I have a 94 mercury cougar xr7 3.8 ltr Any help please?

Jun 22, 2009 | 1994 Mercury Cougar

2 Answers

1996 mercury cougar xr7 shifting problems

i would need more info but it sounds like your trans shifter cable is out of adjustment ; you need to carefully with the brake on and the car idling; move your trans shifter cable to all positions to check for forward and reverse.
Make sure car is chalked or raised of the ground ,

Jan 11, 2009 | 1996 Mercury Cougar XR7

1 Answer

1997 cougar xr7 v-6

Usually with the AC on, the idle will slow down, but your case, maybe you set the idle too fast, try set your idle slow down a little bit see if it is working.

Jul 06, 2008 | 1997 Mercury Cougar XR7

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