High pitched squeal ?
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Laughing Gas
Joined: Aug 2010
Posts: 1,098
Likes: 6
From: Ventura co.
High pitched squeal ?
Lately i have had a loud high pitched squeal only on cold start ups.
I checked the turbo wheel and feel no movement.
It dose kinda sound as if the wheel in rubbing the housing ?
It dose not do it when i first start the truck and let it run at an idle.
it starts only after i start to drive.
when the rpm's get to around 1800 and boost around 10 lbs, it starts to squeal.
if i let off it go's away.. if i gas it again, it returns then stops and will not do it again until everything is cools off.
It only last's about 30 seconds or so max.
i checked for leaks and found nothing unless it somewhere i can't see.
i"m kinda leaning to the belt pulley tension wheels ??
anyone have this happen ?
I checked the turbo wheel and feel no movement.
It dose kinda sound as if the wheel in rubbing the housing ?
It dose not do it when i first start the truck and let it run at an idle.
it starts only after i start to drive.
when the rpm's get to around 1800 and boost around 10 lbs, it starts to squeal.
if i let off it go's away.. if i gas it again, it returns then stops and will not do it again until everything is cools off.
It only last's about 30 seconds or so max.
i checked for leaks and found nothing unless it somewhere i can't see.
i"m kinda leaning to the belt pulley tension wheels ??
anyone have this happen ?
Senior User
Joined: Sep 2013
Posts: 498
Likes: 0
From: Hagerstown, MD
Maybe a seized up idler pulley? I've had a couple seize up on our fleet trucks. Try slacking off the belt and moving it by hand. Give the 2 pulleys on the tensioner a spin while your at it, along with all the others if you don't find the culprit.
I think you'd have known it in a hurry if your turbo wheels/shaft was out of whack like that.
I think you'd have known it in a hurry if your turbo wheels/shaft was out of whack like that.
More Turbo
Joined: Feb 2004
Posts: 509
Likes: 3
From: Findlay, Il
My tensioner showed the slightest sign of coming apart(squealed like a bad bearing). Good place to check, mating surfaces should be square with each other.
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mfp4073
1983 - 2012 Ranger & B-Series
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Aug 23, 2008 07:12 AM
