Mechanics

RUNS ROUGH

1994 Saturn Sport Coupe • 4 cylinder FWD Manual •

I have 94 Saturn that runs great untill the engine temperture reaches 180 degrees. Then the engine stumbles and races at 3000 rpm or cuts off.
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Tim Kirby
November 18, 2010.



http://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plug
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

Rasmataz
Nov 18, 2010.