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3307 Views 14 Replies 9 Participants Last post by  bersa45
Well here's the problem when i'm loaded up 10.5 camper, pulling 18ft trailer loaded approx. 6000lbs pulling a long grade and the pyro temps get around 725 and up but never exceeding 850-875 i get this very high pitched squeel.Back off the throttle it dies down put your foot back in it comes back up.Once you crest the hill and cruise for a mile or two and the pyro temps come back down 550-600 approx.noise goes away.It seems you've got to be into the hill for a couple of miles and the temps over 725 for a bit before the squell comes on,while doing this though there's no loss of power truck pulls real strong,what do you think??(TURBO ON THE WAY OUT??)
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Mine does the same thing pulling my 10,000lb 5ver on long hard grades, anything over 2500rpm. My theory is that it is the surpintine belt or either the fan clutch. I drove 6000 miles across the country and it did it in the first 300 miles and a couple times after that. I'm not going to worry about it.

Can you tell me what you had to remove from the radiator/fan area in order to access the surpentine belt? Has it that difficult to do? You can PM me if you'd like.

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