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Old 06-14-2011, 10:48 AM   #1 (permalink)
Jager
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10 Most Frequent Problems With an LBZ

So I have read a number of pages of the LBZ forum. Great information here. Has already helped me a great deal. I was thinking through everything I read and kind of making a list of the most frequent problems I have read about guy having trouble with on the LBZ. Here is my list so far. Anyone have another one to add to the list?

1) Injectors
2) Head gasket
3) Transmission cooler lines leaking
4) Turbo vain sensor
5) CP3 fuel pump and/or fuel regulator

Anyone add to this list? Trying to generate a list of the 10 most common problems seen with the LBZ. I'm not as interested in the odd ball case or something caused by adding a 150hp tune. Just the 10 most common problems on a regular every day truck.
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Old 06-14-2011, 11:20 AM   #2 (permalink)
Brad92
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I didn't know that injectors or headgaskets were an issue on LBZ trucks?

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Old 06-14-2011, 11:22 AM   #3 (permalink)
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6) Airbag/rear view mirror circuit.

Not sure if just an LBZ thing, but happened to me & found many posts.
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Old 06-14-2011, 12:01 PM   #4 (permalink)
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7 glowplugs/ glowplug circuit
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Old 06-14-2011, 12:16 PM   #5 (permalink)
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i would take the Injectors, Head gaskets, and CP3 off the list personally. They really aren't common problems, something common in my book is something that everyone has had to deal with, not a select few.

1: transmission cooler lines.
2: Steering wheel clunk.
3: Glow plug recall/ reflash
4: EGR issues on any truck that hasn't blocked/ removed it.
5: Front wheel hubs go out at 60k to 100k miles
6: water pump goes out at 100k + miles

Everything else beyond this varies too much from truck to truck to say its common. (Now that I say this I'm going to have my CP3 pumps crap out and take out the injectors causing the truck to lift the head gaskets, lol)
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Old 06-14-2011, 01:29 PM   #6 (permalink)
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and their parts dept suck balls, I have been waiting for 3 weeks for 1 (ONE) injector, I also had the trans lines replaced around 35k and steering shaft replaced, GM can tell me nothing about the injector but ????? they suck bad, even called corporate and had a case file started and they can tell me nothing, they suck too... I am under the 5/100k but buy the time I get it back I will not be
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Old 06-14-2011, 01:44 PM   #7 (permalink)
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Quote:
Originally Posted by DrHolliday View Post
i would take the Injectors, Head gaskets, and CP3 off the list personally. They really aren't common problems, something common in my book is something that everyone has had to deal with, not a select few.

1: transmission cooler lines.
2: Steering wheel clunk.
3: Glow plug recall/ reflash
4: EGR issues on any truck that hasn't blocked/ removed it.
5: Front wheel hubs go out at 60k to 100k miles
6: water pump goes out at 100k + miles

Everything else beyond this varies too much from truck to truck to say its common. (Now that I say this I'm going to have my CP3 pumps crap out and take out the injectors causing the truck to lift the head gaskets, lol)
^^^^^^^^^^^^
Agreed,
2006 LLY here (so it is a LBZ for this discussion) and I have experienced 1 thru 5 on the list above before 80K miles. So I should expect a water pump in the next 20-30k miles it what it sounds like.

All in all, truck is great and most of the things were relatively simple:
1. fixed under warranty (2of3) and no leaks since (about 50k miles ago)
2. has shown up, but I can live with it for now, not terrible and not fixing it yet.
3. GP reflash was done when I bought the truck, it fit in the serial # range and I made them to it before I drove it off the lot.
4. fixed under warranty at approx 37k miles, no issues since and still not removed or blocked. I will not change my engine until my 5yr/100k mile Dmax warranty expires.
5. Replaced both front hubs/bearings at about 70k miles. Great for an HD pickup to seeming need these replaced that frequently, but MANY people have had to do it in that range of mileage.
6. an noted above, water pump is looming out there somewhere.

Water pump on my 1/2 ton '00 Z71 went over 160k miles so maybe I'll get lucky.
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Old 06-15-2011, 12:17 AM   #8 (permalink)
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07 LBZ 62,500 miles and the only issues I've had are a weeping ps hose and a rear axle seal.

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Old 06-15-2011, 08:54 AM   #9 (permalink)
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2,4,and 5 for me so far, also pump rub, and now I drove through the lockup on the torque converter while towing, will fix that today. 135k miles so far.
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Old 06-15-2011, 09:30 AM   #10 (permalink)
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#1) Transmission cooler lines leaking
#2) Turbo vain sensor
#3) glowplugs/ glowplug circuit
#4) Steering wheel clunk.
#5) EGR
#6) Front wheel hubs
#7) Hydroboost
#8) leaking P.S. lines
#9) Transfer case Pump rub
#10) Rear axle seal
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