Question about 1997 Mercury Cougar XR7

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?

Posted by on

  • Tim Coakley Nov 03, 2012

    my 97 cougar 30th annv does the same thing but i put a new iac on it before this promelem cae up does anyone have any other ideas?

  • tonylbowman
    tonylbowman Dec 30, 2012

    Did you find out what was causing this. I have a 94' that is doing the same thing. idle at about 1500. Thanks in anvance for your help.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 62 Answers

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

Posted on Jul 28, 2010

  • druidess8907 Oct 21, 2010

    I have a 97 merc cougar



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Engine runs weird when decelerating from a high speed (100mph-160kmh) highway run.

I would expect a "check engine" light and a code if your O2 sensor was bad. You checked codes, right?

Oct 20, 2015 | 2003 Subaru Forester

1 Answer

Car vibrates when accelerating, engine light flashing

engine light flashing means a problem needs immediate attention ----have the vehicle scanned most auto stores offer this service for free more than likely the viberation is what is setting off code

Oct 05, 2015 | Cars & Trucks

1 Answer

I have mitsubishi pejero IO 2003 model car. RPM of the car shows high when driving (around 4000 rpm at 100km speed) but rpm is normal without accelerator. after travelling 60km car gives jerks and speed...

Pull your transmission (gearbox) oil dipstick and look at the oil. It should be a clean red colour. If brown or black change the oil as soon as possible because it is burnt and old ... you have slipping.

Oct 21, 2017 | Mitsubishi Outlander Cars & Trucks

2 Answers

RPM drops to zero at idling after engine accelerates when warm

This may been an ignition module or a MAF sensor, this car may need to be diagnosed using a OBD I computer code reader to accurately diagnose the problem.

Aug 06, 2009 | 1998 Mitsubishi Eclipse

2 Answers

High idle in a 2004 Grand Am

Yes, the sensor is the first thing you should replace.

May 08, 2009 | 2004 Pontiac Grand Am

Not finding what you are looking for?
1997 Mercury Cougar XR7 Logo

Related Topics:

215 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

gerry bissi

Level 3 Expert

4376 Answers


Level 3 Expert

81400 Answers


Level 3 Expert

5687 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides