Flooding spark plugs

Tiny
SHAWN P MCKINNEY JR.
  • MEMBER
  • 1997 GMC SONOMA
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 197,000 MILES
I have a Vic Sonoma that is flooding the spark plugs on cylinders one, three and four.
Wednesday, May 24th, 2017 AT 3:51 PM

3 Replies

Tiny
JIS001
  • MECHANIC
  • 3,409 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.
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Wednesday, May 24th, 2017 AT 11:22 PM
Tiny
SHAWN P MCKINNEY JR.
  • MEMBER
  • 2 POSTS
My compression is 170 on cylenders 1 and 2, 0 on 3 and 120 on 4
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Wednesday, May 31st, 2017 AT 3:19 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,753 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
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Saturday, June 3rd, 2017 AT 12:07 PM

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