2000 4.0 whistle sound
Thread Starter
Member
Joined: Jan 2015
Posts: 150
Likes: 0
From: long island
Year: 2004
Model: Grand Cherokee
Engine: 4.0
2000 4.0 whistle sound
Hi,, I have this whistle sound coming from the front of the engine when cold, after it warms up noise goes away, I disconnect the fan belt and i see the belt tensioner has play from side to side. Could this be the problem and how much play is normal ? Thany for any replies!
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
Zero, zip, nada! There shouldn't be any looseness side-to-side in the tensioner. With a serpentine belt, or any belt, it's important that the belt and all pulleys track straight.
Member
Joined: Aug 2016
Posts: 233
Likes: 4
From: Maryland
Year: 1996
Model: Grand Cherokee
Engine: 4.0 I6
Was just working on mine. Here're the tension specs if you want them:
New belt tension should be 800-900 N (180-200 lbs)
Used belt (>15 min of use) should be 623-712 N (140-160 lbs)
New belt tension should be 800-900 N (180-200 lbs)
Used belt (>15 min of use) should be 623-712 N (140-160 lbs)
