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2006 Pontiac GTO Repair Question


Topics covered: Gas, Head gasket, Sensor.
Mileage: 74,000 miles.

Asked on January 4, 2012

No start ie. no spark and low compression two cylinders and others are running very very high fuel pressure

Ok head gasket blew been replaced all good until i tried to start and ckp sensor threw code 0336 wires good grounds good replaced sensor and code went away.


Now the shop its at says its intermittent firing at best and will not crank

Shop says plugs are shot and needs new ones but im thinking he said also that the fuel pressure?? was supposed to be like 3 but its like 80 in two of the cylinders and two other cylinders arent moving as should be (he said they had low pressure).

Any ideas as to what is going on?
Avatar Asked by 06ls2gto

Answer

Replied on January 4, 2012

Hard to say whats going two cylinders arent moving like they should?I would do a cylinder leak down test sounds like some valve issues.I would also check the valve timing since the head gasket was just done.

Tiny Answered by saturntech9 (expert)
23,192 answers provided