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What is wrong if there is oil on my 36 spark plug?

Tiny
RAINSRAE
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 118,730 MILES
I have a 2003 Pontiac Montana, and the engine is shaking pretty good and we were getting a code for cylinder 6 misfiring so we replaced the plug and wire and found that the plug had oil on it from the inside. Its not staling anymore but it does have some white smoke from the exhaust here and there and is still shaking and the code is back and the engine light is flashing now. So my question is what could be wrong?
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Wednesday, June 27th, 2012 AT 12:04 AM

6 Replies

Tiny
RAINSRAE
  • MEMBER
  • 4 POSTS
Iam very sorry I meant that to say #6 spark plug!
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Wednesday, June 27th, 2012 AT 12:06 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Start with a compression test. Then a leak down test to verify a head gasket for the white smoke.

Check for spark to the plug. Last, check for the injector to be working.

Roy
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Wednesday, June 27th, 2012 AT 12:10 AM
Tiny
RAINSRAE
  • MEMBER
  • 4 POSTS
How do I do a compression test and the leak down test? I guess I what I mean is what tools do I need to do this and how?
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Wednesday, June 27th, 2012 AT 12:17 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
A compression tester and a leak down tester. You can rent these from a parts store.

Roy
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Wednesday, June 27th, 2012 AT 12:23 AM
Tiny
RAINSRAE
  • MEMBER
  • 4 POSTS
Thank you very much I will try these things right away.
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Wednesday, June 27th, 2012 AT 12:30 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
There are directions on our homepage under the DIY section.
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Wednesday, June 27th, 2012 AT 3:29 AM

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