THE WHOLE VEHICLE SHAKES AND RUNS POORLY

1999 Ford Ranger

Tiny

jimwad

November, 18, 2011 AT 8:50 PM

I have a 1999 For Ranger V6 4.0. I had it tuned up about a year ago but when I start it up now the engine shakes badly and runs poorly

FOUND 4235 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

2 Answers

Tiny

fixitmr

November, 18, 2011 AT 8:57 PM

Was this sudden problem? Did you tune up because of problem? What was included in tune up?

Tiny

rasmataz

November, 18, 2011 AT 8:57 PM

If its not engine/tranny mounts follow below

Refer to this link for more information:

http://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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