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1990 Dodge Caravan buning rich

Tiny
SHADOWBEASLEEP
  • MEMBER
  • 1990 DODGE CARAVAN
Engine Mechanical problem
1990 Dodge Caravan 6 cyl Two Wheel Drive Automatic

van has no exeleration very little going up hill, black soot around tailpipe but not smoking has exhaust issue. Van has died a couple of times going down road thought maybe vapor locking. If burning rich causes would be?
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Friday, August 8th, 2008 AT 12:48 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be caused a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
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Friday, August 8th, 2008 AT 1:00 PM

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