Flooding spark plugs

1997 GMC SONOMA
197,000 MILES • 2.2L • 4 CYL • 2WD • MANUAL
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SHAWN P MCKINNEY JR.
  • MEMBER
  • 2 POSTS
I have a Vic Sonoma that is flooding the spark plugs on cylinders one, three and four.
May 24, 2017 at 8:51 AM
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JIS001
  • ✓Experienced Mechanic
  • 3,412 POSTS
Perform a compression test of all 4 cylinders and let us know the readings.

Here is a guide

https://www.2carpros.com/articles/how-to-test-engine-compression

Please let us know what happens.
May 24, 2017 at 4:22 PM
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SHAWN P MCKINNEY JR.
  • MEMBER
  • 2 POSTS
my compression is 170 on cylenders 1 and 2 ,0 on 3 and 120 on 4
May 31, 2017 at 8:19 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,616 POSTS
Oops, yep there is a problem with the engine it either has some burnt valves, broken valve spring or a piston has let go. Please remove the valve cover to inspect.

Please let us know what happens, we are interested to see what it is.

Cheers, Ken
Jun 3, 2017 at 5:07 AM
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