Engine/Transmission (1998.5 - 2002) Slow building boost / low boost

[PKozlowski]

Ok, here is a good one.

I was way low on power, no smoke at all.

Probably couldn't pull it's way out of a wet paper bag.



Took it to dodge and they replaced the injector pump.



I get 10. 3 more mpg now and that is great but I still don't

have any power to speak of.



I am empty and if I'm doing about 30 in 3rd gear and mash

the gas not a whole lot happens.



The truck just kind of sit there and starts to accellerate really slow

it's building boost really slow and no big gain in EGT.

Hard to get it over 800 degF.



It build boost on the low end (rpms) really slow but once it gets

going it will build faster. .



It has never run like this before, it always built boost

pretty quick. This is night and day different.



This morning I just kept my foot in it to see what I could get

and the boost maxed out around 23lbs and then bounced between

23 and 20 lbs.



I'm thinking maybe the pop off valve or turbo.



Any ideas?

 

[Ragain]

Check wastegate for proper operation. Any intercooler leaks?

 

[Graphic man]

i would also look at a MAP sensor and or IAT sensor

 

[DMcPherson]

do you have a fuel pressure gauge?

 

[PKozlowski]

No, no fuel gauge. Got a new injection pump and lift pump.

Still low on power. Dealer said it's the fuel.

Being straight kerosene and an anti gel additive.

I've heard this from two different mechanics now.

 

[Cooker]

Kero will be lower on power, lower on MPGs, and harder on injeciton pumps.