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Old 04-24-2017, 09:29 PM   #1 (permalink)
Join Date: Apr 2017
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BrennanSC is on a distinguished road
Default Coolant in Cylinder 4 (2007 Suzuki Forenza)

(TL;DR At the bottom)

I've been having problems with my 07 Forenza for a few days now. When it first happened, the engine would shudder but once I got up to a speed higher than ~25 mph it would stop and run normally. I did a bit of research and asked a coworker about it and found that my car was misfiring and/or running on 3 cylinders.
The next day I removed the spark plugs and found them covered in oil. I removed all the oil that I could from the piston wells and replaced the spark plugs. That day I also put a new head gasket in, as well as changes the oil. Once I was all finished, I started the car and everything seemed normal.
The next morning; however, when I started the car to go to school it shuddered again. I drove to school, and it seemed to run fine so long as the car was moving. But once the car had been sitting for a while or was stopped at a stoplight/sign the car would begin to shudder again, lots of white smoke with a tint of blue was coming out of the exhaust, and the Check Engine Light would flash, as well. When I got home I removed all the spark plugs again, ran a compression test (all 4 cylinders had 175 psi). When I went to put the plugs back in, I noticed oil in the 4th cylinder. I cleaned it out and took the car for a drive. And everything seemed to work okay, it didn't spit out white-blue smoke, and it even didn't give me problems when I stopped. Once I got back to the house, I pulled the spark plugs again and saw coolant in only the 4th cylinder.
It's still shuddering and the check engine light flashes.

TL;DR: When I start the car it shudders and the check engine light flashes. Found oil and coolant in the 4th piston cylinder. I replaced spark plugs and head gasket.

Would this just be a bad gasket, or is it probably a cracked head?
Thanks for the help!
- Brennan
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