2007 Pontiac G6 Compression Testing

Tiny
DONNYRAY49
  • MEMBER
  • 2007 PONTIAC G6
Inline 4 engine Cylinders 1, 2 and 4 are near normal. Cylinder #3 is 30% below normal in both wet and dry testing. Possible causes?
Wednesday, January 7th, 2015 AT 10:21 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
How many miles are on the engine? Have you done a wet compression test? Have you done a leak down test on that cylinder. Is there any coolant and oil mixing? Is there excessive white smoke from the exhaust?
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Wednesday, January 7th, 2015 AT 10:44 AM

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