WHAT IS THE CAUSE OF HIGH IDLE COMBINED WITH EXCESSIVE CRANKCASE PRESSURE
1999 Chevrolet Suburban
March, 31, 2012 AT 1:02 PM
The truck is the wifes and has been very well maintained. When driving you dont have to touch the gas pedal and it wants to accelerate. When checking hoses for a vacuum leak I pulled the oil filler tube cap off and the pressure comming out of the crankcase was crazy. I'm thinking a broken piston ring but there are no noises or excessive oil consumption.