Help problems with my car

Tiny
BRANDINICOLE87
  • MEMBER
  • 1999 MERCURY COUGAR
  • AUTOMATIC
  • 130,000 MILES
My 99 mercury cougar is slipping when I pus the gas sometimes not all the time what is wrong
Monday, August 1st, 2011 AT 4:37 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-
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Thursday, September 22nd, 2011 AT 8:23 AM

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