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Old 07-05-2010, 11:55 PM
DBITEME2 DBITEME2 is offline
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Join Date: Jul 2010
Age: 46
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Engine: 1999-2000 359ci (5.9L) Cummins ISB 24-Valve Diesel I6 235hp 460lb/ft (manual)
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Default Need help with Tranny and A/C

Hi all, I am searching for a simple answer here! I have 99 Ram 2500 4x4 (auto) w/5.9 cummins. It recently started shifting up and down while driving up the road? I replaced the Transmission Output Shaft Speed Sensor (trouble code P0715 & RT Code 10149) and it worked for about 2 days? Dang sensor may be bad ..ok.. but when I hit the brakes hard the A/C blows hot? Can it be a vacuum line or pump? And is the sensor the problem here?? Help Please!!!
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