How many miles are on your truck?

I'd definately check out your valves. If I can adjust them, anyone can.

 

I just pegged 238,000 miles. I had my IP replaced @ about 225000 miles and was getting approx 16-18 when it was replaced. Since the replacement I have been getting almost 13 on the hwy and about 11-12 in town... And yes, I think Im going to run my valves next.. Ive been reading the DIY threads and it looks pretty simple...

 

Here is one of the best sites I've found for help on adjusting your valves

http://mopar.mopar1973man.com/2002%2...adjustment.htm

You might also wanna check out this site for more help with MPG's, although I'll admit I've yet to do either yet, but I'm going to

http://mopar.mopar1973man.com/2002%2...iat_sensor.htm

 

Wondering if maybe your IP did not get timed properly when replaced, but then it should make a bunch noise?

 

With my 35s and a total of 44gallons of fuel in my truck I am getting almost 20mpg on the highway, and 600miles to the tank. I have to fill up once a week at $150 bucks too.

 

VP44 pump is keyed... But maybe the wrong key was used or put in upside down...