Changed out vp44 a while back and cant belive the fuel mileage increse.Went from 15 mpg to 18mpg,truck is heavy 9900LBS

There you go... That all about timing and pressure (pop)...

what made you change it?my 3/4ton is getting about 15 when i don't run 2stroke.i have no codes but sometimes on medium->heavy grades when i shift from 3rd to 4th i don't have anything left. pedal to floor and no acceleration. after the grade i can move with the best of em.

  Mopar1973Man said:

There you go... That all about timing and pressure (pop)...

(pop) What? :confused:

  Dave3500 said:

(pop) What? :confused:

Pop pressure... When the VP44 pump start to wear a bit they tend to lose a bit of the pressure so they don't deliever as much fuel...

Thanks....................BTW.................Like the new look you gave you site, sorta like HD! :thumbsup

  Dave3500 said:

Thanks....................BTW.................Like the new look you gave you site, sorta like HD! :thumbsup

No Problem... I was doing so good and screwed up the CSS scrpit and ended up starting over again... The previous version had more to it now I got to play catch up and try not to include the bad script... Back to our normally scheduled thread... LOL

  jlwelding said:

Changed out vp44 a while back and cant belive the fuel mileage increse.Went from 15 mpg to 18mpg,truck is heavy 9900LBS

Hey JLWelding could you catch mine yet... :confused:

http-~~-//www.youtube.com/watch?v=pq0XG5qRLsM

Yes you can post YouTube videos now... :thumbsup My max on record is 25.3 MPG's... :wow

With my trucks weight I would be glad to ride the skirt tails of 20mpg. :thud I had to put that up there it looks cool

At least you getting 20 MPG...

Not quite but a heck of a site better than when I first bought it, I think I was getting 12 mpg :thud LOL

OUCH! That had to hurt the ol pocket book... :broke

Hey Michael I put a new to me apps on to day and it stoped the hard rump rump when you clutch it. But it is touchie as all get out, like the spring has colapsed. Got to ride with foot braced on trans hump, can this be fixed some how?

Go to your local hardware stor and pick up a spring and add it to the bellcrank on the APPS sensor to stiffen the throttle up for ya...