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Looking at two LLY's... help?

North Maine

Merchant Mariner
Messages
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Location
Fort Kent, ME
Anything to look out for? New to these trucks and diesel trucks in general. Any help you can render will be greatly appreciated!

BTW I'm posting this for a friend.
 
*Some* overheated constantly. <---Highly debated over years of testing and numerous forums.

Cooling system is rumored to be *sub par*.

I had one and I personally never had a problem.

The injector wiring harness would rub on the alternator bracket, cutting juice to two of the injectors. Its an easy fix though and takes all of 1 minute.

Steering shafts were garbage but seem to effect all generation DMAX's.

Glow plug control modules seem to have been a common problem on 2nd generations.

Other than that, they are good trucks. I had one for 3 years. They can make A LOT of power.

Get the VIN numbers and run them here.
 
I read about one fix people have done is to update the front end (baffles, airboxes, fan shoud, etc) to LBZ, as well as the turbo inlet elbow to LBZ, then it is fixed for good. Go to maxxtorque.com, and find the magazine issue that covers this, they will give you a parts list, and of course an article that covered the whole cooling issue in general.

It makes tons of sense, and its all GM parts, so i am no longer scared of an LLY, in fact, since it is the last d-max with a manual, i am actually wanting one now.

know two guys that work 3500s a tad hard pulling goosenecks loaded heavy with equipment, and they never had overheating issues with their LLYs, but then again, they left them stock. I wonder if some of the airflow issue is caused by the ol truck being perched up high on a lift, having turbulence at the front axle area, but that is just me.

good luck!
 
I had an '05 LLY and never had any cooling issue even when pulling double loaded hay racks on a 90* day. The only problems I had with it was the injector harness rub through and a bad steering gearbox leak (warrenty).
 
My LLY is over 5 years old, and I have had the intermediate steering shaft replaced due to the original one rattling (the new one was quiet for about 20k, and now it rattles too), and I had the instrument cluster stepper motor crap out and had to replace that. Neither the ISS nor the stepper motor are unique to LLYs.

I did a preventative fix on the harness rub potential by wrapping the wires in a 1" piece of garden hose and taping it up. I was not having any problems, though.

No overheater here, either.
 
Our 05 LLY has been a great truck, owned since new. Never overheated it, haven't had any of the issues, except for ISS (needs to be greased, all replacements will clunk eventually too).
 
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