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1988 Dodge Caravan smoke

Tiny
ROBERTJOHN47
  • MEMBER
  • 1988 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
Smokes at idle and taking off good compression no overheat problems. Is this bad valve guides or seals. Does not smoke after cleared out
Tuesday, August 17th, 2010 AT 10:04 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Does this happen when you first start the car only?
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Wednesday, August 18th, 2010 AT 12:24 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Usually, valve seals allow oil to drain into the cylender when the engine is off. I wonder if the drain plugs are clogged in the head and causing the head to hold too much oil. Have you ever taken the valve covers off?
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Thursday, August 19th, 2010 AT 12:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Usually valve guide seals will only cause the smoke when the engine is first started, or it can happen under full accelleration. Since yours only happens when the engine is warm, I have a feeling the ports in the cylender head are partially plugged and cauising oil to drain back the oil pan slowly. As a result, there is a build up of oil in the head causing the smoke.

Have you ever removed the valve cover?
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Thursday, August 19th, 2010 AT 9:02 PM

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