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Lack Of Power On One Hill
I was pulling 10,000 # through the mountains and on one hill the truck slowed to 45 MPH. The pedal was to the floor , the boost was only 20# and the RPM was somewhere around 3000 RPM. I normally pull this load at 55 MPH on this hill.
Everything was back to normal on the remaining hills with boost over 30# and normal downshifting.
What would cause the low boost and lack of a downshift?
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Jim
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