This may get long. My truck was bought NEW in late 03. Sometime you could nail it, and it would blow smoke. Next time it was a pig. Took it back to the DEALER for poor MPG. Still a pig at bottom end. Added an AFE replacement filter. Didn't matter. Added a BD ext 5 inch. Sounds good, performance still sucks. .....Put on a Quadzilla max mileage. Good for 60HP. Was OK at first, now spotty as hell. Putting a WHISTLER mod on it this week. Not going to make the differance I want, but. All right men, where would you go from here.BTW 86000 miles with stock lift pump.

 

Lift pump.....

Airdog, GDP, BD, or Fass

 

I have also put on a NON adjustable boost elbow.

 

Why non adjustable? What psi are you seeing? Do you have any gauges monitoring anything?

 

Not a clue about the PSI. Its still a pig until you start hitting 1800 to 2000. PSI should be no more than 32/35PSI with the elbow I have on now.If it was the lift pump, it sucked from day one....

 

Well the 03-04 canister mounted lift pumps are notorious for being insuffecient and unreliable. Get that replaced and try a Smarty IMO, it may just be programming. And get you some gauges asap!

 

X2............

 

Have you taken it back to the dealer or try a different dealer ,because you still have warranty on the engine.

 

Will do... Thank You!

 

More times than I would like to count.