The transmission started to shift very hard and at improper times at 25,000. The dealer had it for a week and replaced the "accumulator" washers.
The rear window motor went out and was replaced at 25,000 under warranty.
Transmission started to shift hard again at 35,600. The dealer had the vehicle for a week and found several faulty parts in the transmission and referred to a recent bulletin that GM had sent out on the defect. They did cover it under warranty even though I was 600 miles over the coverage.
I love the looks of the truck. It is the last of the beefy Chevy front ends. However, I have great concern that this is a Heavy Duty 2500 that I have never towed anything with and the transmission is not holding up. I also worry that the dealer is having many of these trucks worked on for transmission issues since the manufacture is sending out bulletins.
I have 2002 HD Chevy Silverado 2500 6 liter. The transmission in it shifts the smoothest I've ever felt one shift (mine is just great).
What gas mileage should I expect on a 2002 2500 Chevy v-8 6 liter Silverado?
I have a 1500 hd 6.0 L and get about 10 mpg in town and up to 14 on hwy on cruise control, with k&n air filter and after market air flow sensor.
Replaced my trans at 75,000 miles through a private trans shop due to slipping. All local dealers told me there was no problem code and that nothing was wrong. Seeing that I have several million miles on Chevy 1 ton trucks and vans, I disagreed and found a competent shop that could diagnose and fix the problem (worn clutch bands). However, I have towed and hauled much weight with this truck since new.
Gas mileage for me around town 12.5 highway 14-16 MPG. The biggest difference I have noticed is that I ordered my truck with 4.10 rear end instead of the 3.73 that is standard. It gets this heavy hog moving quickly without much sacrifice at the top end.
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