Engine/Transmission (1998.5 - 2002) "99" looses power when climbing a hill

[yoyo]

my '99 3500 losses power while towing my camper. This usually happens on a long grade. If I cycle the key off and on it will reset something and will run good again. (sometimes for 20 miles and sometimes for 10 seconds. Also If I put the clutch in and let the engine come down to an idle, it will reset. I have just had the lift pump changed. The truck has 100,200 miles on it. Can any one help??

 

[PKirby]

I fixed a 99 Ram that would loose power after it was driven a few miles and would be ok after it cooled down. I drove it with a scanner connected and at the moment it lost power the boost sensor stopped responding. A new sensor corrected the problem.

 

[Bob4x4]

The engine also has protection built in and derates power under many different conditions,but should turn on the cel if that is happening. Check for codes.



Bob