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AT 545 harsh upshifts and overspeed
Hi, I have an International 1997 school bus with a 444e it has an at545 transmission. What it is doing is it gives a 2-3 upshift and bangs then the rpms go to almost 4000. I checked the transmission relay and it is working so is the wiring. I tried a test elec... Login to read more. ![]()
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