My 97 Sable stalls and idles rough. Please Help

Tiny
DIRVO85
  • MEMBER
  • 1997 MERCURY SABLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 137,000 MILES
My 1997 3.0 V6 mercury sable is idling roughly and will die when I slow down or put the car in reverse. While driving the rpms will drop 3-500 and you have to accelerate through it. What could be a possible cause? I checked oil, checked and filled coolant, and added fuel injector cleaner! What next? Please Help!
Monday, January 17th, 2011 AT 5:41 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

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-

https://www.2carpros.com/articles/engine-misfires-or-runs-rough
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Monday, January 17th, 2011 AT 10:13 AM

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