06 Pontiac Grand Prix, P0306, P0422 codes. 75psi in Cylinder 6. The rest of the cylinders are 100psi. Can this be fixed?

John Alden2019-08-13T17:31:22Z

Anything can be fixed with enough money, so can this.

thebax20062019-07-27T13:26:51Z

Sure get a valve job.

Bill2019-07-27T07:50:35Z

yep -- get a new engine
all compressions should be 155-165psi with a min pressure of 145 psi

Anonymous2019-07-27T07:36:41Z

Hopefully it's a poor seal in the valves. Unfortunately finding out is an expensive job. I would trade it in.

Starrysky2019-07-27T07:16:51Z

How much money do you have to fix a 13 to 14 year old Pontiac? It is no Mercedes, after all.