have an 05 LLY blocked and stuck w/ 4" magnaflow down pipe back. prob i'm having is a constant low power/shitty mileage thing. power was back to normal after the last oil change, i tightened the egr flange, fiddled with the maf position and that was it, it ran like a scalded dog for about a week and a half and averaged 17 in town but now is back to 15.5 and is under powered. no tune or other mods, and it started doing this about 6 months after i got, bone stock it and i've had her about 3 years. dealer says nothings wrong and there's no other diesel shops here in jax i use the same gas station for fuel and i've tried others to no effect. change fuel filters religiously 3-5k. any info would be helpful

 

change your fuel filter first and make sure you didnt get some bad fuel 3 to 5 k is great but if i have low power problems first then go from there and welcome to diesel bombers

 

I've tried that time and again and it makes no difference i just cant think of any thing else to look at besides fuel/air/oil. the damn dealer keeps tellin me there's nothing wrong and i've taken it to them 10-12 times with the same complaint. there's also an (exhaust leak,injector?) noise coming from the drivers wheel well at idle that went away when the power came back. they keep telling me the injectors check good and that there's a service bulletin to explain the noise but its not the same noise as it describes. just frustrated because i know how she should run and shes not runnin right

 

Boost leak? did you check the hoses on your intercooler?

 

Checked all the boots all tight all have oil seepage tho.

 

turbo going out??? do you have a boost guage?

 

no not yet i bought it w/ 25k on it, the old guy only pulled his camper w/ it and it now has 79k, turbo spools up fine doesn't smoke at all even when gettin on it hard no cat now but she use to blow black smoke before i put the exhaust on no white smoke tho i don't think shes gettin enough fuel but i don't have the time or the money for any kind of serious down time for tinkering as shes my daily driver

 

where did you put the MAF, you said you moved it

 

Just turned it in its housing stock location just turned a little. Play in the sensor screw holes. I think I have a boost leak some where I just can't find it. Its really tickin me off because the fuel mileage ***** the bed when its doing this

 

put the maf back how it was