hey, guys im usaually in the 2nd gen. forum but im driving a 05 4wd for the weekend, ithink this truck may have a cylinder going bad not sure the truk only has 94 ,ooo miles on it . it is a heck of adeal they only want 13,449 for it at the dealer. how will i know if it is cylinder it is knocking that im not use to. no white smoke no loss of power oil guage running about 40-50.is this just in my head ? also are there any major problems with this year model. if it is a cylinder should be under warranty. thanks for any help.

 

I wouldn't think it would have a bad cylinder but ya never know.. The 610 series are pretty stout engines. The few bad things are the plastic intercoolers, lift pumps and door seals. Most of these problems were eliminated in later same year models.

In regards to the knock you may be hearing a clogged injector or one about to exit the building.

 

You cant lock out overdrive on the 05s eather. Bad feature there. All models before and after you can lock out overdrive. Makes for a poor trans setup for towing much.

 

you can have the dealership reprogram the pcm so the tow/haul button is an overdrive lockout instead but the shift patterns will be the same as the non tow/haul programming, so I've heard.

 

Can you verify that please? Or where did you hear that? I was told no.. But....

 

I've had the OD lock-out done to my '05 and it is MUCH better than that lousy tow-haul setup. I push the button - OD is locked out. I push it again - the lockout is released. Be carefull after you have it done to remind the dealer that you have the lockout every time you have it serviced - especially if you have it flashed for anything - I just had two TSB flashes done and they wiped out my high idle and OD lockout - had to take it back.

 

My TSB for the tow/haul to O/D lockout was about 70.00 if I remember correctly. WELL WORTH IT

 

The BD Overdrive Lockout is better than the factory setup because you can keep your tow/haul function and have it with o/d or without. A good bit more than $70, but worth it. It should have come that way in the first place.

 

The LP on all 05's should be in the tank. My early 05, plastic IC and NV5600, has the LP in the tank. The door seals are a $40 and 5 minute fix, I did mine last month.

I really think 05 is the best 3rd gen year... Best engine, and best interior... I really don't like the newer interior, too much mini-van influence.

 

Yes I agree. I like the 05 dash the best.
I was using the tow/haul feature over the weekend pulling my camper. I don't have any of the later flashes but I liked how the transmission would downshift to third when I came out overdrive and pressed the tow haul button. The torque converter would lock immediately in third and stay there, until I took it out of Tow/haul. It would shift to fourth then. I thought it worked well. It shifted when I thought it should. I just didn't keep my foot to the floor either.
Its programmed well in my opinion. Much better shifting than my old 46RE ever was.

 

you can take an 05 out of overdrive by double tapping the tow/haul button.
i do it all the time when im in a hilly area while towing.

 

when in OD and i hit the tow/haul (once) it will downshift to 3rd but it only stays for about 15 seconds or so if i'm above about 40mph then it shifts back into OD (unless your in the pedal of course). i've never heard of any way to keep it in 3rd, might have to try that one.

 

When I'm towing (#7200 TT) I do the same thing. Double-click it and it shifts into 3rd and locks. Will stay that way until I let off on the accelerator or head down hill. Not perfect like a real lockout but does work pretty well when towing.

Agree that the BD lockout module is the best solution and should have been implemented by DC.

 

What's 'tow/haul' ?

 

Its what raises my shift point from 1500 to 2200