I have a 2002 Dodge RAM with a 5.9. The PCM is going bad in my truck. I actually found a shop that sells rebuilt ones w/ warranties. So I was going to grab one from them. The issue is they don't have any for a 5.9, but they do for a 5.7. Will a rebuilt PCM from a 5.7 work in my 5.9 motor?

 

No. You need to find one for a 5.9.

 

5.9 Gas or Diesel?

 

Good question, I just assumed he had a 1500 with a 360.

 

Its gas.

 

You'll need to get a PCM from the same year and engine package... and then have it recoded with your VIN #.

Good Luck.