What problems do the LB7 have?
Overheating issues are more common on LB7 and LLY Duramax trucks than future generations. This is most likely because they have a smaller radiator and fan than 2006 or newer models. Overheating issues typically occur because of a faulty water pump, or a damaged fan clutch.
Does LB7 have head gasket problems?
There are several reasons and a variety of opinions as to why the LB7 head gaskets fail, such as excessive overheating problems that could occur when towing or working the engine hard; and excessive boost and extreme cylinder pressures in a high-performance application that could allow the stock head bolts to stretch …
What fails on LB7 injectors?
LB7 injectors fail whether you add extra filtration or not. They fail whether you use additives or not. They fail whether you add a lift pump or not.
How many miles will a LB7 last?
Miscellaneous Parts. As we said earlier, the LB7 powered HD Sierras and Silverado’s are very reliable, and many you’ll find on the market have well over 300,000 miles on the original engine.
Are there any problems with the crew C4500?
Some people I have talked to say that these trucks are relics and DO NOT buy one……the guy I talked to owns a 2005 crew 4×4 dump work truck and his list of failures in 70k incuded: transmission, head gaskets, instrument panel, alternator, battery charge isolator, 2 radiators, and it is currently in the shop for an injector problem.
What’s the difference between a C4500 and C5500?
Brakes are far superior, turns tighter, more interior room and I can legally haul my rock buggy on the flatbed AND pull the toyhauler with the bikes in it. That’s why I went with a 5500 instead of a 4500. That extra 2000 lbs. of rated capacity made the difference.
Which is better 02 3500 crew cab or C4500 crew cab?
It’s my daily driver and is so much more capable than the 02 3500 crew cab that it replaced. Brakes are far superior, turns tighter, more interior room and I can legally haul my rock buggy on the flatbed AND pull the toyhauler with the bikes in it.