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Old 11-23-2014, 10:56 PM   #1
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Location: Old Hickory, TN
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Year: 1989
Coachwork: Bluebird
Chassis: All American FE
Engine: Cummins 8.3
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Intermittent Turbo Problem

Hey Skoolies...I hope all is going well for everyone!!

I have a continuing saga with power issues related to my Turbo. Does anyone have any idea what could cause intermittent interruptions in turbo boost? I can be tooling along just fine, then hear a higher pitch whine like a vacuum cleaner hose is blocked. Within a few minutes I begin to loose power. It is directly related in some way to turbo function I am sure, but not sure where to begin my search at this point.

I thought it was directly related to the #%@& squirrel I kicked out of my air intake, but the problem return. I wonder, is it possible that a vacuum line is weak and collapsing or something of that nature??

A bit of good news - I stumbled across the original owners manual and service manual while gutting out the bus!!

1989 Cummins 8.3FE Turbo with an Allison 4Spd Auto Tranny.

Thanks!....Mark
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Old 11-24-2014, 06:12 AM   #2
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Re: Intermittent Turbo Problem

my guess is you have boost leakage. do you have an intercooler/aftercooler?
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Old 11-24-2014, 11:21 PM   #3
Mini-Skoolie
 
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Join Date: Sep 2014
Location: Old Hickory, TN
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Year: 1989
Coachwork: Bluebird
Chassis: All American FE
Engine: Cummins 8.3
Rated Cap: 84
Re: Intermittent Turbo Problem

Hmmmm????....Don't know - will check the manual tomorrow.

Thanks for the suggestion to look at it.

Mark
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