2001 Chevrolet Silverado 2500HD

2001 Chevrolet Silverado 2500 Description

The vehicle I am selling is a 2001 Chevrolet Silverado 2500HD. It has a V8 Turbo Diesel engine, there is an article on this specific vehicle with the spec charts that is at the bottom of the page. In the second paragraph it talks about injector failures being frequent. Being that it has over 253,000 miles on it, the fuel injectors finally started acting up on me. I got it checked out, and seems a few injectors were completely done so I got all 8 replaced 2 years ago, which cost me a total of $3,500. I go to Australia every year for Christmas and stay for a few months. When I came back from overseas this time, I had noticed a very substantial leak coming out from underneath the truck. As I started to try and find out where it was coming from I noticed the water was coming out as fast as my water hose was putting it in. I located the leak coming from the heater coil that heats up your coolant by an a/c cord during the cold months. Quick, easy fix and I start to fill her up again, then I notice it's still coming out almost as fast as before. After few hours of looking around, I finally pinpoint that the leak is coming from the expansion plug, and so I replaced it. So now the truck is holding coolant. I come to find out, one last time, that my heater core is leaking. This is the part that heats the air coming through your vents. Anytime I put the heat on, coolant would leak inside the truck. Three days of work(also equivalent to $800 of labor work),ripping out everything behind the dashboard, I finally get to the $75 part and replace it. So now I have put dexicool in the radiator and all is perfect with the coolant system now!!!
There are a few parts of the vehicle that are not working. The ABS and emergency brake lights are going off, which I got checked out, and looks like it is the EBCM (Electronic Brake Control Module) Motor Relay Circuit that has gone out and will cost $200 to replace. Also the low coolant light keeps showing and wont go away. I replaced the reservoir tank that has the coolant sensor molded into it, but that didn't fix it. So it has led me to believe it is the wiring and I just don't feel like messing with that, but be well assured the coolant is full and not low!!!
Disclaimer: Also this is important to know and could effect/change the price of this vehicle. I have started to notice a delay in the downshifting of the transmission and it has led me to believe it will go out in the next 10,000 miles. This transmission has never been replaced and is an Allison 1000, which was introduced in the 2001 Silverado 2500HD and are known to be faulty. Surprisingly enough the vehicle has 253,000 and is now only starting to show problems. Which leads me to believe it doesn't have much of a life left and will need to be replaced soon!
I hope I was as informational as I could be to you guys, and that I've made the decision for you to buy this vehicle a little easier =)
If you want to see my truck running and driving, I'll have a video posted for you guys on youtube tomorrow...Stay Tuned...

The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.2001 also introduced the Allison 1000, arguably the first automatic transmission in its class worthy of being mated to a powerful diesel.The LB7 also appeared as the engine to adopt common rail technology, as Dodge would not implement its own common rail Cummins until the 2003 model year and it would take Ford's Power Stroke until 2008 to apply the technology. The LB7 is unique to other Duramax models as it predates emissions regulations. As such, it's praised for reliability and has been regarded as a particularly economical variation of the engine.

The LB7's applications included the Chevrolet Silverado HD, GMC Sierra HD, GMC TopKick (medium duty), and Chevrolet Kodiak (medium duty). As impressive as GM's new engine platform appeared, the LB7 had terrible problems with fuel injectors failing. In fact, injector failures were so frequent that GM was forced to recall the poorly designed units and replace them with an updated design. In order to provide loyal customers with a sense of reassurance, the factory warranty was extended to cover the new injectors for up to 200,000 miles. Despite injector troubles, the Duramax was featured in Ward's "10 Best Engines" for the 2001 and 2002 model years.

Potential buyers were immediately concerned with regard to the Duramax's aluminum heads, and for nearly a decade owners of competitor's pickups would gripe about their distrust for the alloy heads. However, head gasket failures (or other related concerns for that matter) are no more frequent on the aluminum headed Duramax diesel than other competitor's cast iron headed engine. Not only has the head design proven reliable, but other manufacturers have begun to employ aluminum alloy cylinder heads on their diesels in order to benefit from the significant weight saving.

The LB7 was available mated to the Allison 1000 five speed automatic transmission or the ZF 6 speed manual transmission, with the automatic being a much more common choice. The LB7 was produced through the 2004 model year, when the LLY was introduced in its place.

6.6L DURAMAX LB7 SPECS

Engine:	6.6L Duramax LB7, 90 degree V-8 diesel
Years Produced:	2001 - 2004 model years
VIN Code:	1 (8th digit of VIN)
Displacement:	403 cubic inches, 6.6 liters
Head/Block Material:	Aluminum cylinder heads, cast iron engine block
Compression Ratio:	17.5 : 1
Firing Order:	1-2-7-8-4-5-6-3
Bore:	4.06 inches
Stroke:	3.90 inches
Aspiration:	Turbocharged & intercooled - IHI turbocharger, air-to-air intercooler
Injection:	Direct injection, Bosch 23,000 psi high pressure common rail with CP3 injection pump
Valvetrain:	OHV (overhead valve), 4 valves per cylinder (32 valve)
Oil Capacity:	10 quarts w/ filter
Engine Weight:	Approx. 835 lbs
Max Engine Speed:	3,250 rpm
Peak Horsepower:	• 235 hp @ 2,700 rpm (2001 model year) • 300 hp @ 3,100 rpm (2004 model year)
Peak Torque:	• 500 lb-ft @ 1,600 rpm (2001 model year) • 520 lb-ft @ 1,800 rpm (2004 model year)