2004 LLY questions

[Kartmnn]

I found a 2004 lly with about 25,xxx miles on it. The 8th digit in the vin is a 2 so I think it means its a lly right? Does the lly have the injector problems? What other problems should I lool for? Its a reg cab 2 wheel drive. I do about 100,000 miles a year on my lbz but the price is right on this truck as a backup. Any info is great.... Thanks

 

[darkone98]

Vin code 2 is a LLY. Injectors aren't a common problem, but head gaskets are, as they are the old crimped design vs riveted. They like to heat up more than the other platforms, but I have never seen mine overheat. Some wiring issues can develop too such as #2 and #7 injector harness, and wires rubbing on the fuel injection control module bracket causing shorts. Other than that, they are very reliable.

 

[Kartmnn]

Are they good towing motors with the head gaskets and overheating? I tow 10000 pounds alot.

 

[darkone98]

Your cooling fan may kick in alot, but it should handle it fine. I towed more weight than that in 90 degree weather and never had an issue, but I never tried steep grades. You may want to look into blocking/deleting your EGR and swapping the turbo mouthpiece for an aftermarket or LBZ one, it makes a big difference. I destroyed my head gaskets by being stupid with my Edge CTS. Some people never had a problem, but the higher drive pressure on the turbo, increased cylinder pressures from the programmer, and overheating is a good way to blow them out.

 

[05chevy]

Iv never had a issue with mine and iv got 60k of straight beating the truck racing and pulling. Buy it and you'll love it. Wire harness can be fixed with a ice pick. Cut the zip tie on the bracket holding the harness to the ficm and you shouldnt have any problems