Truck in my sig:

I have noticed on my last highway trip that I seem to have a loss in power in the mid-upper RPM range. Truck idles fine, runs smooth, has no codes or noises, & builds the same boost. I really notice it pulling away from a toll booth where it would always pull very strong...expecially once boost had built and RPM's were above 2000. I just don't seem to feel that kick in the a$$ like I used to. Vefy subjective, I know, but just throwing it out there.

I've done nothing yet, but I have a Raptor 100 lift pump & thought I'd clean the inlet screen and change the fuel filter...any other thoughts? I don't have a rail or low pressure fuel gauge.

Thanks in advance

 

My only guess would be the fuel filter.

 

What turbo? What program? How much boost above 2K? EGT'S above 2K? Rail pressure @ Idle, Mid & WOT?

Could be a popped Rail Pressure Valve.

 

I don't have a rail pressure gauge, so I can't answer that, but I'm running SMARTY #7 and haven't really noticed any differences in EGT's or boost. At 3/4 throttle above 2K, I usually see about EGTs about 1050 and boost is 22-24psi.

Turbo is stock 2003 SO motor...whatever that is.

Thanks for the reply. Maybe I should cap the pressure relief valve and give it a try...

 

I would definately get a RPG and see what your pressures are now!

Also, you are not "making oil" right?

 

maybe you've just gotten use to the hp your at and need more!

your on the right track with stuff to check and the rp would be a good thing also. The local dodge place will let you take a drive with a tech and Starscan hooked up for 1/2 hour shop labor rate. Cheaper than buying a $200 rp gauge.

 

Thanks for the replies. Oil level hasn't moved and is staying pretty clean. I would like to reconfigure my gauge situation and add a RPG, but I really should sell my Edge first to help with the cost.

Also, I am on a boat and will have a 500+ mile drive home before I'd be able to mess with this. Hopefully there won't be any consequences.