I have a 2007 2500 cummins, I have no ac. I have taken it to several ac shops and talked to dlodge dealer. Everyone says I have to replace the computer to fix the ac. Any way around this? Or is it computer time.

 

Unfortunately, everything is ran throu the damn TIPM nowadays. Im sure you can rig up a way to bypass it and turn the compressor on manually, even wire in the high and low cutoff switches. Could take some ingenuity, but it sure beats paying $900 for a TIPM.