no power

[too old for this]

Up date on no power. Made a trip to the big city,no trailer,empty truck.Got down to the highway, got up to 65 mph. Set the cruise reset mpg indicator.Wow it pegged out at 30 mpg and stayed there for most of the 42 mile trip. Ended up with a round trip average of 26 mpg. Never ever did this good before. Thought it was a fluke. Made another run yesterday and it was about the same. Very strange. Truck still does not like going up the mountain. Low gear most of the time.

 

[jlb]

Sounds like you need to take a trip to the dealer...

No codes or anything?

 

[too old for this]

Went to the Dealer this am. Nice young man. Told him the story. He says 4.7 is not made for towing. So much for that visit.