I have been having problems for a while now with loss of power, and dropping fuel economy. I have dropped from 20-21MPG to 12-13.
I finally broke down and took my truck to the dealer.
Dealer said there were no error codes.
Dealer re-flashed my computer with updates from dodge and that's it.
When I picked up my truck, it seem's like it's even worse than before.
Any ideas, or tips

 

Changed your fuel filter lately?

 

Yes, I recently changed the fuel filter. I'm a fanatic about maint. Change my fuel filter every 4,000 miles.

 

I'm betting it just needs to have the dog snot run out of it.

How do ou drive it?

Is a daily driver, commuter, grocery getter or does it tow regularly, make long highway runs, etc.

If it's a DD, you probably have a bunch of carbon buildup on the injector tips, exhaust valves, etc.

You need to get some boost and higher EGT's to it and burn that crud off.

Pour 32 oz of Power Service, Staynadyne, Howe's or other cleaner of your choice into a half tank of fuel.

Go to to Home Depot, rent one of the trailers with the bucket loader / back hoe on it and run the truck hard, like it's suppossed to be driven.

Get the boost and temps up.

These things are not at their happiest when they get grandma'd.

 

Any operating difference in your gages since you noticed the problem? EGTs, boost, trans temps?

 

How often should you get on it? Mine is a daily driver, I drive 50 miles a day round trip and 60% of that is highway. I usually get to 70mph and then put it on cruise. I use Drews brew every fill up. Am I building up lots of carbon?

 

bigity, did you recently install the levelling kit and larger tires? If so that will cause some mileage loss. Have you tried setting your truck to stock, by removing the superchips?
Do you know what "re-flash" updates the dealer installed?