Disintegrating Power

[WeirCummin]

A buddy of mine who is to cheap for a membership in the TDR is looking to regain the power he says he once had on his stock 92 250 with an auto and 240k. I have no way of judging the power of his truck as I have a Y2K 24V,but it does seem low on power. When puuling a lite load and heavy thottle it smokes up a storm and will hardly maintain speed on a slight grade. He has never used a fuel additve until the last couple of tanks of fuel and thinks this is going to clean the fuel system and injectors. I told him I didn't think there was any way this was going help and that at this point his injectors probably have a poor spray pattern causing the lack of power and smoke ( after seeing how dirty my stock injectors were when I replaced them at 12K ) I've been trying to get him to BOMB his truck but almost had to twist his arm to change the fuel filter. I'm tempted to let him drive his truck into the ground but hate to see that happen to a Cummins.
Dean

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Y2K(BD. 11. 18. 99)PW7A BE2L34,(A4OP=ETC/DDX),DMDP w/DSA,AHJ,Pyro&Boost,STD. PE,275RV injectors Psychotty,14cm2,Wlkr#21468

 

[Power Wagon]

There are any number of reasons for this:

Bad turbo

blow intercooler hose

bad leak in the intake

Immenent pump failure

bad injectors

blocked air intake

blocked exhaust

blown intake and/or exhaust gasket

The smoke is a good indication that fuel isn't being burned - that being the case, it is either that the injectors are dumping raw fuel or that there's insufficient air to burn it.

Assuming he hasn't messed with his timing, there's not too much else.