Winter VS. Cougar (Vaccum brakes fail and car accelerates)

Asked by Nov 25, 2010 at 04:50 PM about the 2000 Mercury Cougar 2 Dr V6 Hatchback

Question type: Maintenance & Repair

I have a 2000 v6 Mercury Cougar. When it got chilly here (0 to -10) the car began to shake and it does not like to idle. When idling the Rpm would move slightly. Driving it it was alright once it warmed up. Then when it got really cold (IE -15 to -35) the car is just not drive able. The rpm is moving constantly between 1 and 3. The lights on the inside of the car dim and then light up. The car seems like it will violently shake to death and stall. Worst of all the vacuum brakes stop working and you are virtually unable to press down on the brake.

I had someone look at it and they said that the oxygen sensors in the car were not working and that my "hub" was clogged. Also there were some issues with the idle air control? I'm not sure what any of these mean. But, they were fixed and the car was working fine. It was about -25 that day. It also worked well the next morning. There was also a humming noise but, it didn't seem to be caused by anything.

Then, however, upon starting my car after work it began going crazy. The rpm would fluctuated from 1 to 3  and back down and the up again. I let it warm up in this state and test drove it around the block. This time the car seems to really want to go. It accelerates by itself drastically (IE going from 20 km/h to 40 km/h) with my foot off the brake. Again, the brakes became very difficult to push down.

Please help, thank you.

4 Answers

10

I'm having the same exact problems with my 2000 Cougar! Did you figure out what was wrong with yours?

1 out of 1 people think this is helpful.

Worn out intake gaskets and a faulty idle regulator.

10

Thank you so much. I will look into that. Happy holidays!

Did the gaskets take care of it? Idle and brake promblem??

Your Answer

Add photo

Related Questions

Cougar

Looking for a Used Cougar in your area?

CarGurus has 243 nationwide Cougar listings and the tools to find you a great deal.

ZIP:

Search Mercury Cougar Questions

Mercury Cougar Experts

#1 lisagayle
lisagayle
Reputation 2,070
#2 Tom Demyan
Tom Demyan
Reputation 660
#3 FordNut
FordNut
Reputation 610
View All

Related Models For Sale

Used Ford Mustang
719 Great Deals out of 38,863 listings starting at $1,999
Used Chevrolet Camaro
656 Great Deals out of 39,479 listings starting at $3,495
Used Mercury Grand Marquis
33 Great Deals out of 2,249 listings starting at $1,500
Used Ford F-150
3,449 Great Deals out of 206,327 listings starting at $1,273
Used Pontiac Firebird
10 Great Deals out of 833 listings starting at $3,800
Used Honda Civic
1,179 Great Deals out of 66,808 listings starting at $695
Used Chevrolet Corvette
381 Great Deals out of 20,344 listings starting at $3,688
Used Ford Focus
1,258 Great Deals out of 60,029 listings starting at $1,295
Used Ford Explorer Sport Trac
80 Great Deals out of 2,011 listings starting at $900
Used Cadillac Eldorado
426 listings starting at $2,990