No power????

[DF5152]

This has been going on for a while truck feels light a brakes are draggin but not. I just changed all the filters and everything is the same how do i know if the truck is in limp mode. any other ideas?

 

[Smokey 01]

If it's in limp mode it will pull fine up to 2000 rpm then it will just drop off and be very slow. Also I think that you will have a CEL when in limp mode. If you don't have these symtoms, how is your boost and egt's, if they are lower than normal something isn't right. Just some things to look at.

 

[DF5152]

boost is normal egts seem low but its been cold. no CEL... .

 

[Smokey 01]

If boost is normal it may not be engine related could be something with the transmission.

 

[DF5152]

changed

i recently fueled up at a different location truck seems to be running better.