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1966 Other Pontiac Models trouble shooting

Tiny
DAVE7088
  • MEMBER
  • 1966 PONTIAC
  • V8
  • 2WD
  • MANUAL
  • 75,000 MILES
The engine is a 389, three duces, 4 speed. The engine suddenly started smoking from the oil filler cap in the valve cover. The engine runs well at high or low rpm and idles well. The plugs look good and there is no evidence of a blown head gasket. How do I trouble shoot this? Thanks for your help.
Dave from Atlanta
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Friday, April 18th, 2008 AT 3:20 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your pcv valve for operation. Sometimes the hose blocks up and stops the pcv from working correctly. You may have to replace the hose and a good idea to replace the pcv at the same time. If it still smokes then check the engine for leakdown. That is something you won't be able to do.
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Sunday, November 1st, 2009 AT 9:02 AM

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