Thankfully, the previous owner helped to offset the cost. Both needed to be replaced to fix the problem, and this was costly.
The problem had to do with the front pump and the torque converter. The 5-speed Allison is a great workhorse, but it did have a leak literally the day after I bought the truck. Yes, brakes are a consumable item on any vehicle, but heavy duty truck brake components cost more. Heavy duty trucks that haul big loads go through brakes, and I performed one big brake job (resurface front rotors, replace rear rotors, and get new pads) that cost a little over $1,000 at a dealership. I also used a coating and bed liner on the lower door sections and door sills to stop the surface rust and provide extra protection. I painted the sections of the frame/chassis that I could reach without removing the bed or the cab. The truck spent most of its time outside (not garaged), and the dirt road took a toll on the paint and coating. You could see the rust stains underneath the truck after a rain storm. I got the truck from a Colorado farmer when it was six years old, and the lower doors and the frame/chassis had a lot of surface rust. Getting the oil change done at a dealership or a shop will run $100 at a minimum. The extra oil and the fuel filter add cost to the equation. Yes, you can do most of the maintenance yourself: oil changes, fuel filter changes, air filter, tire rotations, etc. Heavy duty trucks, especially turbo-diesels, are costly to maintain. Here are my top 5 issues/complaints about my truck. We travel to various lakes in the Rocky Mountain region, so the truck sees its fair share of heavy work. The 5-speed Allison transmission has very helpful grade shifting feature to help on the downhill, and the truck always feels confident pulling a trailer or hauling a heavy load. The truck is used primarily for recreation: towing a 22-foot ski boat and carrying a slide-in camper. 2002 Duramax 6.6L V8 (with aftermarket intake) This is drastically more efficient than a comparable HD truck of the same vintage with a gasoline V8. This engine/tranny is a good pairing and I have averaged around 17.5 MPG in day-to-day driving (when not towing or hauling heavy loads). This engine is mated to a 5-speed Allison automatic transmission. This torque rating may seem small in comparison to the 900+ lb-ft in current 2017 truck, but it was very competitive for the time. Its codename was the “LB7”, and the 2002 version of the engine is rated at 300 hp and 520 lb-ft of torque. This original 6.6L Duramax V8 turbo-diesel came to the market in a GM heavy duty pickup in 2001. What is this truck like to live with on a regular basis? Here is the good and the bad on this truck. It has 165,000 miles on the clock, and I have owned is for nearly eight years. This is my personal 2002 Chevy Silverado 2500 HD Duramax 4×4.
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