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1995 Chevy Cavalier Spark plug wires

Tiny
JOHNFLY
  • MEMBER
  • 1995 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 81,000 MILES
My car runs fine when it the engine is cold. As soon as it warms up, it starts to sputter and run very rough. I replaced the wires a couple of years ago, but could this be a spark plug wire problem?
Thursday, September 24th, 2009 AT 11:20 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light? Might be time to give a another major tune-up, also below will caused it

Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Friday, September 25th, 2009 AT 12:08 AM

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