WHAT IS THE CAUSE OF HIGH IDLE COMBINED WITH EXCESSIVE CRANKCASE PRESSURE

  • Tiny
  • digial
  • 1999 Chevrolet Suburban
  • 225,000 miles

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.

Do you
have the same problem?
Yes
No
Saturday, March 31st, 2012 AT 1:02 PM

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

Check for a bad PCV valve.

Was this
answer
helpful?
Yes
No
-1
Saturday, March 31st, 2012 AT 1:25 PM

Please login or register to post a reply.

Similar Questions