Should still get TCC, even with O/D off.

 

Bad TCC solenoid, get OD but no TCC lockup. Irritating that I have to change both solenoids as a unit.

 

You don't absolutely have to.... but, it IS suggested......

No TCC and O/D will burn up your trans in pretty short order.....

 

Maybe time for a tune up? Suggestions? Cuz it does seem really low even for 100% driving. And my 4.10s should make up for my 33s so...

 

Do you have a 180 degree thermostat or is it still the factory 195? Cooler thermostats contribute to loss in fuel mileage...if you haven't had a tune-up recently then that could certainly be a factor as well. Might be time for new o2 sensors and a timing chain too...I also don't know how your speedo could be "on the dot" unless you have had it re-calibrated for your increased tire size. My truck came stock with 265/70/17 (I also have an offroad edition) and I too have 285/70/17...so at 60 mph, my speedo is off by like 2 mph or so. Obviously it depends on what speed you are travelling but I would think that it should be reading a little low...

 

If it has been a while, it sure wouldn't hurt. Also:

Timing chain and gears.
Pre-cat O2 sensor.

 

Seems like this thread is drifting off course.....

 

According to my hand calculations, I get 38 smiles per gallon. I tend to not even think about miles per gallon anymore hahah. Smiles per gallon make up for the mileage LOL

 

haha!dont feel to bad I'm getting about the same as you!

 

Well ORE Rams came with 275/70R17 factory(if I'm not mistaken). I didn't recalibrate it when I went from 33x12.5x17(what it had when I got it) to 285/70R17 and I've checked with my phone on all the increments of 10 to see if it's right and it is. Maybe the previous owner recalibrated it? I'm the 2nd.