Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 20 of 24 Posts

·
Registered
Joined
·
58 Posts
Discussion Starter · #1 · (Edited)
I finally made the switch from my trusty 2 door 96 Ford 7.3. I just bought an early 2006 LBY with 221k miles on it. My wife is pregnant with twins and my goal is to build this truck as safe and reliable as possible. I will be using the truck to tow our toy hauler which is about 9-10k lbs when fully loaded with toys. We usually take a handful of long trips around 500 miles per year.

After driving for a week, I noticed the power steering was very stiff and brakes were very squishy. I went ahead and flushed the power steering fluid and the steering definitely improved a bit, although not as great as i'd expected. The brake fluid was bad, so I pumped new fluid through the system and bled the system. Brakes improved a ton after this.

I got a low coolant warning this morning on my way to work, so I think the next item on my list is a coolant flush.

I'd like to start ticking off general maintenance items that will help increase reliability and longevity. I'd love to get your guys opinions on building out a list of things to prioritize. I am also open to mods that will increase reliability and longevity as well. Maybe even a monitor or gauges if necessary?


Brand new to me, 2006 LBZ motor w/LLY tune (I think?). CCSB 4x4 LT model, white in color. 6 speed trans with tow button and +/- switch.

221,000 miles, all original, bone stock for now.
 

·
Registered
Joined
·
597 Posts
I would change the front and rear differential, transmission, and transfer case fluid. A lot of people never change them, so you could be on 221k mile old diff fluid. I'd also do the pump rub fix, so your transfer case doesn't leave you on the side of the road.
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #4 ·
Congrats on the babies and the truck
Thanks man, we are both excited and terrified about having twins. Kinda feeling the same about a new truck that I don't know much about haha :eek: But having this community to lean on for insight provides some comfort.
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #5 ·
I am thinking about doing a coolant flush and also trying to clean the cooling stack. Its pretty dirty and it gets pretty hot here in Phoenix. Sounds like most people are just cleaning these while they are still on the truck? Maybe removing the grill and using a combination of compressor air, simple green and a garden hose?
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #7 ·
Thanks AlisoBob, Is it worth removing the cooling stack from the truck to clean, or is it effective enough to do this without disassembling too much? I have tried using the search function but there doesn't seem to be a ton of good info on cleaning this... or coolant flushes in general. Maybe I create a little write up when I do these, unless they already exist. I am new to the forum so I may not be using the search function to the best of its ability yet haha



Works awesome.....
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #9 ·

·
Registered
Joined
·
46 Posts
Thanks man, we are both excited and terrified about having twins. Kinda feeling the same about a new truck that I don't know much about haha :eek: But having this community to lean on for insight provides some comfort.
Yes, congrats on the upcoming twins and the truck!

We've got a bit in common. 3 1/2 years ago I bought our 2006 LLZ/LBY with 245k miles (tow a 10k travel trailer) and 18 years ago this Monday my wife and I had twin boys :grin2:

It sounds like you're on the right track and getting the maintenance items figured out.

By far the biggest bang-for-the-buck mod that I've done on the truck was the turbo brake:
https://www.duramaxforum.com/forum/...393-lbz-how-activate-factory-turbo-brake.html

When are the twins due?
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #11 ·
Did we just become best friends!? haha Thanks man, we are very excited and terrified... I'm sure you can relate to that.

How many miles do you have on the truck now?

Our boy and girl are due in April, so I have a few months to get things in order on the truck before they start peeing and puking in it 'uhNo

I actually don't know much about turbo braking, I will read up on the benefits!

Yes, congrats on the upcoming twins and the truck!

We've got a bit in common. 3 1/2 years ago I bought our 2006 LLZ/LBY with 245k miles (tow a 10k travel trailer) and 18 years ago this Monday my wife and I had twin boys :grin2:

It sounds like you're on the right track and getting the maintenance items figured out.

By far the biggest bang-for-the-buck mod that I've done on the truck was the turbo brake:
https://www.duramaxforum.com/forum/...393-lbz-how-activate-factory-turbo-brake.html

When are the twins due?
 

·
Registered
Joined
·
105 Posts
Just to tack on a bit when you do the transmission flush, I recommend using Transynd. It will last you much longer and give better protection. Also, if you can I recommend doing the transgo jr when you do the pump rub kit. Maybe you don't need it if you keep it bone stock (mine is minus a programmer) but I always lean on the side of caution and feel spending a couple hundred bucks now is certainly worth not possibly spending a few thousand later not to mention being stranded somewhere.

Sent from my SM-G977U using Tapatalk
 

·
Premium Member
Joined
·
5,057 Posts

·
Registered
Joined
·
58 Posts
Discussion Starter · #15 ·
You guys are awesome. Thanks so much for all of the killer info! I already feel more comfortable poking around under the hood :grin2:

This thread may help you, although it sounds as if you have already done some of these:

https://www.duramaxforum.com/forum/maintenance/988217-maintenance-info-suggestions-new-owners.html
KaliMax, unfortunately I never got your message buddy. Not sure whats going on with that... maybe its because i'm new?

 

·
Registered
Joined
·
249 Posts
DAH7, If your having ANY hint of overheating, get busy on the stack cleaning while it's tolerable outside. You can not do this with just a cursory spray and power wash from the outside, You need to open the stack up, even remove the intercooler / radiator to do it 'correctly and thoroughly'. I'm just 40 miles south of Phx (in Casa Grande) and trust me,, cleaning the stack, changing the fan clutch to one that engages below 190°, flush / refill the cooling system, check all the hoses and serp. belt....,, do ALL of this now while it's under 110° outside. It is NO FUN fighting an overheating truck in our Az summers.

Service the trans, transfer case and differentials,
do not,, I repeat.. DO NOT think a can of engine junk cleaner and a hand full of quarters at the car wash to clean under hood is a good idea. IT IS DEFINITELY A BAD MOVE!! Soaking all of the electronics underhood with water is a big NO NO and probably more-so here in the desert SW. If underhood heat wasn't enough, this heat just helps cook th einsulation on wires and bakes plastic connectors to dust. Water will find it's way in to the modules and components and that is probably the WORST PROBLEM with these 15 year old desert trucks. Electronics get cooked and it's a nightmare, add some water causing shorts and you can find yourself on the side of the road with no power, and more important no AIR-CONDITIONING to keep mama and the kids cool.

And a big congrats on the brats. There is NOTHING I have ever done or had that brought so much pride and joy as my kids,,,,,... well, not until they started giving me grand-kids.
 

·
Registered
Joined
·
9 Posts
Congratulations to you, and good luck to your wife on the twins! From your first post picture I would say you should get some tow mirrors.
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #18 ·
What does the transgo jr really provide? I don't know anything about them... I am experiencing intermittent rough downshifts just before I come to a complete stop. Not sure if this is a sign of much bigger problems, it kind of has me concerned. I have been daily driving the truck to work and the motor feels super strong, so that a silver lining haha

Just to tack on a bit when you do the transmission flush, I recommend using Transynd. It will last you much longer and give better protection. Also, if you can I recommend doing the transgo jr when you do the pump rub kit. Maybe you don't need it if you keep it bone stock (mine is minus a programmer) but I always lean on the side of caution and feel spending a couple hundred bucks now is certainly worth not possibly spending a few thousand later not to mention being stranded somewhere.

Sent from my SM-G977U using Tapatalk
 

·
Registered
Joined
·
105 Posts
The shifts become more firm. It helps to save the clutches burning up (especially with additional hp-I believe supposed to be good up to 500hp but I would check that).

Whoever installs it should do a quick learn and drive it. There is a relearn process for it. The transmission will seem a bit clunky in between gears at times until it relearns everything.

Sent from my SM-G977U using Tapatalk
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #20 ·
Been really busy lately with offloading all of my toys and helping my wife obtain new furniture for the house, but I am excited to dive back into the truck this weekend. I was able to get the coolant flush done, changed the oil with Mobil Delvac 15w40 and mobil 1 oil filter. I noticed my oil pressure is a little bit higher than it was previously... used to idle at just under 30 on on the stock gauge and just under 60 wen cruising, now its over 30 at idle and around 70 when cruising. I found that kind of interesting...

Hoping to replace the air filter, fuel filter, window regulator, reverse lights (Brighter LED's) and buff the headlights this weekend!

One thing I am still stumped on is the switches/buttons near the headlight controls. Can anyone help me identify these and tell what they should be doing when I play with them???
 
1 - 20 of 24 Posts
Top