I am new to diesels and new to the forum. I have a 2003 2500 with 32000mi with the Edge Juice module w/ attitude monitor. I have had the module on the truck for about 9 months and love it. This last week I started having severe power surges. At about 40-50 mph the truck will accellerate very hard with out any additional throttle as if it is getting a boost of fuel from somewhere other than the driver. As soon as I let of the throttle it goes back to normal. When I push the pedal back down to my normal driving position, the surge comes back. It seems to be temperature related and does after the engine is above about 130 degrees. The truck starts, idles, and accellerate up to 55 mph normally. It is only at this speed that I get the surge. Today I changed the fuel filter with no change. I cycled the key on/off 3 times and didn't get any codes. The surges began when the weather cooled off to about 15-20 F. Any info would be appreciated.

 

mines doing the same thing, any help????

I'm thinking TPS?

 

Sent the Juice module back to Edge for an update and testing. They found nothing wrong. I'm leaning towards changing the MAP sensor after reading some other posts with similar problems. The Juice plugs in to the MAP sensor so maybe it is sending an odd temp signal to the Juice mod. It is hard to tell if the problem is there all the time but amplified by the extra power or just when the Juice mod is installed. Haven't had any luck with other people replying yet.

 

If that doesnt work, like flycl said I would check your TPS