Car misfires and sputters

15

Asked by Jun 28, 2011 at 01:43 PM about the 1999 Mercury Cougar 2 Dr V6 Hatchback

Question type: Maintenance & Repair

Car misfires and sputters only when the car is cold and only when you're stepping lightly on the gas pedal, works fine on open throttle (runs fine when running at temperature). What could be the problem? Check engine light never comes on. I've changed spark plugs, wires, and fuel filter, cleaned the intake, oil & filter changed frequently. The car has had the stock air filter taken out & a short air intake installed (but ran fine with it).  Also, when you take off the short air intake pipe at the intake (pipe has the MAF sensor in the piping), it works exactly the same... would have thought that it wouldn't run right without the air running through the MAF sensor...

3 Answers

15

It is a 1999 Mercury Cougar V6

135

Tune up time

15

I wish that were the problem... it's had a complete tune up, except for coil pack.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • Car misfires and sputters 3 answers

    Car misfires and sputters only when the car is cold and only when you're stepping lightly on the gas pedal, works fine on open throttle (runs fine when running at temperature). What could be the probl...

    1999 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • Winter VS. Cougar (Vaccum brakes fail and car accelerates) 4 answers

    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 warm...

    2000 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • Car 1 answer

    Hooked battery up backwards and now the car wont start

    1994 Mercury Cougar 2 Dr XR7 Coupe

    -

    Maintenance & Repair

  • Misfires, spudders, wants to die!!!!! 5 answers

    When it's cold outside car revs up and down, wants to die. When I'm over 2000 rpms it's fine. When I proceed to brake the car wants to die but still go and brake pedal feels like I'm pressing on ...

    2000 Mercury Cougar 2 Dr V6 Hatchback

    -

    Maintenance & Repair

  • Car just clicks 3 answers

    Put new battery in my car and all it does is click

    1997 Mercury Cougar

    -

    Maintenance & Repair

Cougar

Looking for a Used Cougar in your area?

CarGurus has 215 nationwide Cougar listings starting at $1,421.

ZIP:

Search Mercury Cougar Questions

Mercury Cougar Experts

#1 lisagayle
lisagayle
Reputation 2,200
#2 Tom Demyan
Tom Demyan
Reputation 770
#3 Jessica Cornelison
Jessica Cornelison
Reputation 600
View All

Related Models For Sale

Used Ford Mustang
733 Great Deals out of 42,724 listings starting at $1,300
Used Chevrolet Corvette
259 Great Deals out of 22,303 listings starting at $2,500
Used Chevrolet Camaro
418 Great Deals out of 31,646 listings starting at $2,395
Used Chevrolet Monte Carlo
13 Great Deals out of 1,354 listings starting at $995
Used Mercury Grand Marquis
32 Great Deals out of 1,759 listings starting at $1,700
Used Ford F-150
2,204 Great Deals out of 180,758 listings starting at $1,500
Used Chevrolet Impala
559 Great Deals out of 34,675 listings starting at $1,000
Used Pontiac Grand Prix
41 Great Deals out of 2,766 listings starting at $1,200
Used Toyota Camry
1,061 Great Deals out of 72,865 listings starting at $1,000
Used Mitsubishi Eclipse
26 Great Deals out of 1,261 listings starting at $1,250

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.