jawbonecyn
New Member
- Joined
- April 9, 2010
- Messages
- 3
- Reaction score
- 0
- Year, Model & Trim Level
- 2002 explorer xlt
I have humming coming from the engine compartment. It is intermittent when I put the shifter into park and raise the RPMS it doesn't hum. When I drive it and brake the humming stops at about 6-7MPH. Which kind of sounds like a pressure relief valve. Any thoughts thanks.