1986 Chevy Suburban oil in the exhaust

Tiny
KWSTINE86
  • MEMBER
  • 1986 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 91,000 MILES
I have a 1986 chevy k20 suburban recently developed an oil leak in the exhaust in the #1 cylinder I think but its in the exhaust only there isnt any oil on any of the spark plugs.
any Ideas what this may be and how do I correct it the motor only has about 8000 on a rebuild.
Please help.
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Monday, July 26th, 2010 AT 3:44 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi kwstine86, Welcome to 2carpros and TY for the donation the site appreciates it to keep helping

You need to perform a combination tests -check the engine compression both wet and dry tests and follow it with a cylinder leakdown test. Doing this will pin point where its leaking could be valves/rings and cylinder wear
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Monday, July 26th, 2010 AT 5:01 PM

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