1st Post Old Subject Squealing Belt Syndrome
Thread Starter
|
Member
Joined: Mar 2023
Posts: 1
Likes: 0
From: Mobile
1st Post Old Subject Squealing Belt Syndrome
2008 3.0 Ranger 80K miles: Ok my wife's beloved, and I do mean beloved as she takes better care of her truck than me, has the belt squeal/chirp here is what we've done to date:
Replaced belt, Idler Pulley and Tensioner pulley, seemed to solve for about 2 days and came back. Further, inspection had me hearing the squeal more from the left side of the engine bay, mechanic then tested all pulleys with belt removed and found the alternator was not turning as freely as it should, and said he was 98% sure that Alt bearing was the cause, replaced Alt and same noise came back almost immediately. AC on or off has no effect on the squeal/chirp. All pulleys appear aligned, clean with no apparent uneven wear marks, belt appears to have a straight path with no wobble. Need troubleshooting tips as the noise drives the wife mad, which in turn has its own ill effects on me- ha! Personally Id run as is until some obvious problem or failure occurs, yet that is not an option for her. I'm guessing water pump is next, but I'm unwilling to throw more unneeded parts at this stage.
Appreciate any troubleshooting tips you recommend I can try.
Apologies if this should have been posted elsewhere as I am new to the site.
Regards
Bogey
Replaced belt, Idler Pulley and Tensioner pulley, seemed to solve for about 2 days and came back. Further, inspection had me hearing the squeal more from the left side of the engine bay, mechanic then tested all pulleys with belt removed and found the alternator was not turning as freely as it should, and said he was 98% sure that Alt bearing was the cause, replaced Alt and same noise came back almost immediately. AC on or off has no effect on the squeal/chirp. All pulleys appear aligned, clean with no apparent uneven wear marks, belt appears to have a straight path with no wobble. Need troubleshooting tips as the noise drives the wife mad, which in turn has its own ill effects on me- ha! Personally Id run as is until some obvious problem or failure occurs, yet that is not an option for her. I'm guessing water pump is next, but I'm unwilling to throw more unneeded parts at this stage.
Appreciate any troubleshooting tips you recommend I can try.
Apologies if this should have been posted elsewhere as I am new to the site.
Regards
Bogey
Welcome to the forum
3.0l Rangers were notorious for this, just FYI
Glazing
In this case its when you had a squealing belt and it has Glazed the pullies, made them smooth as glass as belt slipped, so when you put on a new belt it can't grip the pullies much better than the old one
So squeal returns
Power steering pump is the hardest pulley to turn, use Emory cloth, courser grit, and rough up the pulley surface, friction is your friend, smooth is your enemy, lol
Painting the pulley's ribs works as well, after they are roughed up so can hold paint
AC compressor pulley would be next
And don't forget crank pulley
Rough them all up, show them who's boss.................yes your Wife, mine too, lol, but don't tell the pullies
Water and Rangers, power steering pump is at the bottom so can get water splashed on it, as well as crank, this will cause slipping belt, you can add splash shield(s) under rad or where you think is best
3.0l Rangers were notorious for this, just FYI
Glazing
In this case its when you had a squealing belt and it has Glazed the pullies, made them smooth as glass as belt slipped, so when you put on a new belt it can't grip the pullies much better than the old one
So squeal returns
Power steering pump is the hardest pulley to turn, use Emory cloth, courser grit, and rough up the pulley surface, friction is your friend, smooth is your enemy, lol
Painting the pulley's ribs works as well, after they are roughed up so can hold paint
AC compressor pulley would be next
And don't forget crank pulley
Rough them all up, show them who's boss.................yes your Wife, mine too, lol, but don't tell the pullies
Water and Rangers, power steering pump is at the bottom so can get water splashed on it, as well as crank, this will cause slipping belt, you can add splash shield(s) under rad or where you think is best
Thread
Thread Starter
Forum
Replies
Last Post
