new here and just wondering why my truck seems slow and when you get on the pedal on the highway it tops to 79mph and creeps to 85 is this normal
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LB7: slow as s**t
- Thread starter dirtymax02
- Start date
Not normal, could be a number of things. Go to user cp and fill out a signature so everyone can see what truck you have and what mods you've done to it. Sounds like a fuel issue to me are you getting any codes?
p.s it takes of like a tank, w.o.t. just to keep up with traffic :truestory:
no heavy smoke just a light cloud of soot
no heavy smoke just a light cloud of soot
stock they are not fast. when mine was stock it would sturggle to get to 95 mph flooring it. It would slowly freep by the miles 91....93.....ect.
Domyou have a cali emiss. truck?
Domyou have a cali emiss. truck?
Was the truck running like this BEFORE the filter change or after?
Is Fuel mileage way down? Possible injector issue?
Any odd noises from underhood associated with accelerating? Possible turbo stating to die?
Have you double checked the drivers side boost tube down by the power steering pump? Possible boost leak there?
General question: if the MAF sensor gets dirty, can that cause this?
not sure if it cail emmision, i dought it is. and before the fiter i remember the same old truck but when driving nomaly then WOT it would let out a pretty dence black cloud.
will the maf cauose any codes? when i hooked up the snap-on scaner and checked every thing out boost is there rail pressure fuel injector pulse fprv ok ect, my truck sound according to the scaner but when you drive it feels like a semi truck.
When mine was bad it never did even on a stock tune
yes, if the MAF is bad for sure it will usually set a "soft code" (wont illuminate the CEL). What are the balance rates like? has the truck always been like this?
It was like this when i bought it thought it was normal but after a few weeks and red lights it seems too slow.
I'm not very familiar with the LB7's but don't they have a factory wastegate? If so, could it be partially open causing poor spool up and slow acceleration and low top speed (without any codes or associated noise from traditional "leaks")?
I throug an over boost code one time when i was testing it so i think the boost is there but could it still leak some?
Check and make sure you dont have a leak between the MAF sensor and the turbo. This leak will alow free air to enter the intake without passing by the MAF sensor and your truck will be very sluggish and spoolup will be very slow. For instance if the resonator, the piece that has 6.6 written on it that sits on top of the engine slips off you will get these simptoms.
just checked resonator and air duck noting noticed so retighten the bolts and still the same as before. while looking around i noticed an exhaust hanger missing obviously noting to do with my problem but wandering were my transmission hanger could of gone, any one no were i could get one. thanks
Thanks every one for your help :thumb: I found my problem something called a duraminamizer in my dash. after looking it up i relized it reduses power!!!! Pulled it out and GD this truck is alive!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Haha, glad you found it! I always thought that product was purely a joke, but apparently they sold some. At least you know it works as advertised :spit:Thanks every one for your help :thumb: I found my problem something called a duraminamizer in my dash. after looking it up i relized it reduses power!!!! Pulled it out and GD this truck is alive!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!