1999 wj Laredo weird whistle
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 741
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Good catch, Cleman! If the tank isn't venting properly, it could be pressurizing.
Try taking off the gas cap when it's whistling. If that's what it is, you'll get a Whoosh as the pressure vents.
Try taking off the gas cap when it's whistling. If that's what it is, you'll get a Whoosh as the pressure vents.


