slight hesitation on highway?
#11
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my truck will hiccup ever so slightly when i turn the ac on, even with no belt on the compressor. it feels like the compressor is kicking on and of, which of course it isnt. i dont know if thats something in the tuning or what. its a constant thing until i turn the ac off.
#15
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If it is your tourqe converter clutch then you would see a drop and rise in RMP's. Your A/C does not have to be on for the compressor cluch to engage, by turning your HAVC control to defrost will engage the compressor also.
#19
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A slipping trans would be a rise in RPM's under throttle with little to no acceleration of the the truck. To prove that it is or is not the compressor engaging turn your fan control to the OFF position and see if the problem still occurs.