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1997 Dodge Caravan hesitation

Tiny
BIGJER7161
  • MEMBER
  • 1997 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 117,000 MILES
I just replaced ac compressor with bypass pully, now the check engine light is on and the van shakes at stop sighns or red lights, why is this. It also makes a sqeaking noise
Saturday, July 25th, 2009 AT 7:38 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Saturday, July 25th, 2009 AT 7:59 PM

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