ExplorerAWD1999
New Member
- Joined
- September 27, 2014
- Messages
- 5
- Reaction score
- 0
- City, State
- Wheatland, MO
- Year, Model & Trim Level
- 1999 Ford Explorer
I have a 1999 Explorer AWD 5.0. Every once in awhile it would make a chirp noise when driving. About two weeks ago a loud squealing started and the CEL came on. Took it to a shop, had water pump, clutch fan and idler pulley replaced. Mechanic said that the noise was still present so he rev'd it up and held it around 3500 RPMS and the noise quit. Got it home, of course noise started again. Replaced alternator. CEL still on. Noise was still present, rev'd it up and held it at around 2000 RPMS and the loud high pitched Xena sounding squeal turned into a chirping noise that seems to slow down after the engine warms up but doesn't fully go away especially when accelerating. Tested the cam shaft sensor, and it's good. Removed the belt and the noise was no longer present, BUT all pulleys and belt seem fine. This is driving us INSANE and costing way too much time and money. Also, no problems with power steering or the air conditioner. HELP PLEASE!