ok, truck has 216k on her. bought it used with 110k. truck always seems to lack power, but i am used to it. took to dealer when bought it and still had warranty and was told nothing was wrong. 2 mths ago took to dealer for some flash. was told my LP was on the way out. have no gauages and dont really believe dealer because this is how it ran last 100k. is it possible that LP has been screwed that long? why hasnt IP screwed up? guess the only way i can actually tell anything is with gauages, right?

 

It is hard to tell without a gauge. Genoes has a nice gauge for less than $80.

That is a lot of miles for a stock lift pump. I'd either buy or build an after-market lift pump. Have a look at GlacierDiesel's kits.

 

I Am Experiencing A Problem With My 04.5 3500 Auto..sounds Similar..i Just Bought It With 120,00 Miles And Previous Owner Had The In Tank Lift Pump Mod Done On Warranty ,,after 2 Failures Of The Original Frame Mounted L/p. After A Couple Weeks Of Driving It It Has Started To Surge/stumble At Lower Speeds With Light Steady Throttle Preasure..even More So On A Slight Incline..i Changed Filter But Still Same...any One Else Ever Have This Problem???the Really Stupid Thing Is This All Started After I Degreased/washed The Engine Compartment So I Thought I Just Got Something Wet.. But Still Does The Same Thing Days Later?

 

We have two 02 feed trucks and they had the same symptoms one took out the IP the other was fine after replacing the LP only they showed symptoms for a long time before actually quitting