Flooding spark plugs

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

JIS001

MECHANIC
3,411 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

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

KEN L

MASTER CERTIFIED MECHANIC
47,626 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