2004 chevy 2500 duramax

Used 2012 Chevrolet Silverado 2500HD LTZ. Description: Used 2012 Chevrolet Silverado 2500HD LTZ with Four-Wheel Drive, Cooled Seats, Running Boards, Trailer Brake Controller, Leather Seats, 20 Inch Wheels, Remote Start, Trailer Wiring, Suspension Package, Tinted Windows, and Trailer Hitch.

2004 CHEVROLET SILVERADO 2500HD LB7 DURAMAX 4WD LOADED LT 35IN NITTO RIDGE GRAPPLERS POWER OPTIONS! LISTED PRICE IS CASH PRICE! (DOES NOT INCLUDE DEALER ...2004 Silverado 2500HD specs (horsepower, torque, engine size, wheelbase), MPG and pricing by trim level. ... 2004 Chevrolet Silverado 2500HD trims (38) (Work Truck) 4x2 Regular Cab 8 ft. box 133 ...2004.5-2007 Chevrolet Duramax 6.6L LLY LBZ. TrackTech Head Stud Kit SKU: TTD0116HS007 ... 2004: Chevrolet: Silverado 2500 HD: WT Extended Cab Pickup 4-Door: 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged: 2004: Chevrolet: Silverado 2500 HD: WT Standard Cab Pickup 2-Door:2004.5 Chevy 2500HD CrewCab LLY 226,XXX, EFI Live tuned by "Idaho Rob" LBZ Mouth Piece Pro-Comp X-Treme 1089 Wheels, Pro-Comp X-Treme A/T 305/65/17 Sonar Angel Eyes Lights and Signals ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209K members Since 2005 A forum community dedicated to Chevy and GMC …When towing a decent load (37' 5th wheel toy hauler) with in a hour, the low coolant light comes on. It is being blown out of the tube on the overflow tank. I have to be super careful taking the cap off, because there is so much pressure building up that it will blow the cap out of the air and shoot a geyser of coolant 15' in the air. 2004 Silverado 2500HD specs (horsepower, torque, engine size, wheelbase), MPG and pricing by trim level. ... 2004 Chevrolet Silverado 2500HD trims (38) (Work Truck) 4x2 Regular Cab 8 ft. box 133 ... 2003 Chevy 2500hd crew cab 4x4, D/A Just a few aftermarket goodies. ... help I have a chev 2004 3500 4x4 with duramax V8 6.6 engine , was climbing the hill outside of town near the top the motor just lost power , nothing , have changed the fuel filters changed the air cleaner , if it sits in the yard I can rev it up in park and neutral , try ...

2004 Chevrolet Silverado 2500 HD ... Air Filter Engine Version: Duramax. 90 Day Limited Warranty. Style: Panel. Height (in): 1-7/8 Inch ... LLY Duramax Specifications Chart. Manufactured Years: 2004-2006. Engine Design: 6.6L 90-Degree V8 Turbocharged Diesel. Transmission: 2004-2005: 5-Speed Auto Allison Transmission. 2006: 6-Speed Auto Allison Transmission. Vin Identification:SOLD 2016 GMC Sierra 2500HD Denali SOLD 2004 GMC Sierra LB7. Save Share. Like. M. ... 2001 Chevrolet 2500HD Duramax X cab 4x4.Stock except K and N air filter and Hypertech programmer. 2002 2500HD D max crew cab 4x4 with Hypertech programmer. Save Share. Like. M. mkmfazio Discussion starterI have for sale my 2004.5 Chevy Silverado 2500HD LT 4X4 Duramax diesel Fully loaded the truck is in very good shape and does not have rust it does have some scratches not …2004 Chevrolet Silverado 2500 HD ... Duramax. 90 Day Limited Warranty. Style: Panel. Height (in): 1-7/8 Inch. Length (in): 12-1/4 Inch. Width (in): 9-5/8 Inch. Washable: Yes. Air Filter Color: Blue. Filter Media: Cotton Gauze. Pre-Oiled: ...

Find the best used 2004 Chevrolet Silverado 2500HD near you. Every used car for sale comes with a free CARFAX Report. We have 98 2004 Chevrolet Silverado 2500HD …Good project. Bring 2 batteries and you can drive it home. Smokes. Needs injectors. New tires on custom rims. 4500 cash 7uno92999uno39 Clean title in my name Detailed specs and features for the Used 2004 Chevrolet Silverado 2500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. If you want to upgrade your 2004 Chevrolet Silverado 2500 HD there's no better time than now. We have plenty of wheels, tires, suspension kits, ...I have for sale my 2004.5 Chevy Silverado 2500HD LT 4X4 Duramax diesel Fully loaded the truck is in very good shape and does not have rust it does have some scratches not …

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Apr 22, 2024 ... Our Publisher Tim Esterdahl got a chance to chat with the owner of a 2004 Chevy Silverado 2500 HD that he still uses for hauling and towing ... Over the engine’s lifespan it has gone through 6 different engine variations: LB7, LLY, LBZ, LMM, LML, and L5P. From the first generation to the one currently in production today, the 6.6L Duramax has nearly double its horsepower and torque, from 235hp and 500lb-ft. in 2001 to 445hp and 910ft-lb. today. And along the way the engine has become ... Gain +100hp/+230lb-ft. 10% more MPG. Limited Inventory. MSRP $1,176.67. From $739.00. Learn more. Configure. Calibrated to safely give you the full power potential of your work or sport Duramax truck without soot, Banks Power’s emissions-compliant tuners and programmers offer built-in ActiveSafety® and AutoRate® to safeguard your powertrain.BLACKROCK RUSSELL 2500™ INDEX F- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies Stocks

Shop the best deals from the largest selection of Chevy Duramax diesel trucks for sale in North Olmsted, OH - only on CarGurus!Detailed specs and features for the Used 2004 Chevrolet Silverado 2500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.2004.5-2005 GMC Sierra 2500HD 6.6L LLY Duramax 2004.5-2005 GMC Sierra 3500 6.6L LLY Duramax This is the upgraded version, it has an additional high-flow intake tube so that the coolant can circulate, which will bring 5°C cooling compared to the ordinary version EGR delete kit for 2004-2005 6.6L Chevy GMC Duramax LLY Diesel .Prices for a used 2004 Chevrolet Silverado 2500 currently range from $6,998 to $31,736, with vehicle mileage ranging from 62,288 to 335,000. Find used 2004 Chevrolet …2004.5 Chevy Silverado (J.T.) 2500HD "Dirt Nasty" LLY Currently under construction for ODL:cookoo[1]: EFI Live Tuned By Mark Broviak @ Danville Performance Danville Performance Specializing in GM Performance including Duramax Diesels from stock to Full out competition trucks. Custom EFILive tuning, In house Dynojet 224LC …Get ratings and reviews for the top 11 gutter guard companies in Chevy Chase, MD. Helping you find the best gutter guard companies for the job. Expert Advice On Improving Your Home...Just like the previous years, the 2004.5-2005 GM 2500HD/3500HD models came equipped standard with a Vortec 6.0L gas engine and offered two optional engine choices, the 8.1L big block or the 6.6L Duramax LLY. As always, the Duramax diesel is the most desirable drivetrain and will command a premium over the two gas-powered choices.Hi gang- Long time no talk. While I've previously owned an LMM and LML, I've never owned anything prior to the LMM. I have my eyes on a 2004 Sierra 2500 crew cab 4x4 standard box with the duramax. It has about 155,000 miles. Everything is stock as far as I know, but I will have a good pre-purchase inspection done at a trusted shop.Sent whistlin through my turbo. Jon. 2004.5 Chevy 2500HD CCSB 4x4. 6.6 D-Max Turbo LLY,Diablo Sport Predator, Cat delete, muffler delete. 15% tint all around w/ eyebrow, cree LED reverse lights, Calrion NX501 double din, Pioneer speakers, custom camoflage seat covers, weathertech floor mats.2005 Chevrolet Silverado LS 3500 Duramax DRW 4X4 Crew Cab. Save Share. Like. 1 Reply. rockn69. 811 posts ... 2004 LB7 Chevy 2500HD LT CCSB 4x4, 4" RCD Lift 35" Toyo A/T2, Bilstein 5100s 235,XXX mi, PPE Downpipe, SAC00s, FASS 165, Magna flow Cat back, PPE Boost valve, ...Fitment Gallery ... This 2004 Chevrolet Silverado 2500 HD LT Extended Cab Pickup 4WD has 20x10 RBP 94R Satin Black W/ Gloss Black Inserts wheels that have a +10 ...Browse the best May 2024 deals on 2004 Chevrolet Silverado 2500HD vehicles for sale. Save $12,143 this May on a 2004 Chevrolet Silverado 2500HD on CarGurus.

Save up to $14,859 on one of 11,563 used 2004 Chevrolet Silverado 2500HDs near you. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools.

Details. Shipping. Reviews. Description. The AL5 Transmission Control Module is found in the 2001-2005 2500HD/3500, CC and Medium Duty trucks with the Allison Transmission. We offer a Pre-programmed TCM which comes with either factory calibrations or our enhanced calibrations. Benefits of our enhanced TCM include: Revised shift strategies for ...Jun 22, 2015 ... While 450 to 475 hp is somewhat normal for Duramaxes with only a PCM tune, Kris went further than simple calibration and is currently sitting at ...Asked by mick52pan May 11, 2024 at 03:29 PM about the 2004 Chevrolet Silverado 2500HD LS Extended Cab 4WD. Question type: Maintenance & Repair. I have a 2004 LBZ …Find the best used 2004 Chevrolet Silverado 2500HD near you. Every used car for sale comes with a free CARFAX Report. We have 98 2004 Chevrolet Silverado 2500HD …AFE 59-00015 3-1/4" x 3" Magnum Force Reducing Coupler. Complete the cold air intake system on your 2001-2004 Chevy/GMC 6.6L LB7 Duramax with Intake Couplers & Elbows. Available in straight, reducing, 90-degree, and hump couplings. These couplers come in various sizes ranging from 3.5" all the way up to 6" diameter and are manufactured out of ...2004.5 Chevy 2500HD CrewCab LLY 226,XXX, EFI Live tuned by "Idaho Rob" LBZ Mouth Piece Pro-Comp X-Treme 1089 Wheels, Pro-Comp X-Treme A/T 305/65/17 Sonar Angel Eyes Lights and Signals ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209K members Since 2005 A forum community dedicated to Chevy and GMC … 2004 Chevrolet SILVERADO 2500HD Ext Cab 143.5 WB. Drivetrain: RWD Condition: Well maintained, runs well, body in good shape overall with a few dents and a little rust in one spot Carfax and vehicle inspection reports available. Transmission: 4 speed Automatic Fuel Type: Diesel Air Conditioning, Alpine Stereo,Trailer Hitc... Browse all MagnaFlow 2004 Chevrolet Silverado 2500 HD Exhaust Systems online now. Buy the power and sound you demand for your 2004 Chevrolet Silverado 2500 ...

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Used 2004 Chevrolet Silverado 2500 HD Extended Cab pricing starts at $7,577 for the Silverado 2500 HD Extended Cab Work Truck Pickup 4D 6 1/2 ft, which had a starting MSRP of $28,590 when new. The ...Used 2004 Chevrolet Silverado 2500 Crew Cab pricing starts at $9,521 for the Silverado 2500 Crew Cab LS Pickup 4D 6 1/2 ft, which had a starting MSRP of $31,540 when new. ... The Duramax Diesel ...Rating breakdown (out of 5): Comfort 4.3. Interior 4.1. Performance 4.6. Value 4.4. Exterior 4.4. Reliability 4.5. Write a review. Explore the 2004 Chevrolet Silverado 2500.GM 97780061 Fuel Filter Head Fits 2001 - 2004 CHEVY Silverado GMC Sierra 2500HD 3500HD 6.6L LB7 Duramax Diesel pickup Parallel installation pipeline design 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design Olympic White 2004 GMC Sierra 2500HD Work Truck 4WD Allison 1000 5-Speed Automatic Duramax 6.6L V8 Turbodiesel Duramax 6.6L V8 Turbodiesel, Allison 10... AutoCheck Vehicle History Summary Accident ... The 2020 Chevrolet Silverado is a fabulous choice if you’re searching for a reliable full-size pickup truck. Why? Because the Silverado is ranked in third place on the US News site...Olympic White 2004 GMC Sierra 2500HD Work Truck 4WD Allison 1000 5-Speed Automatic Duramax 6.6L V8 Turbodiesel Duramax 6.6L V8 Turbodiesel, Allison 10... AutoCheck Vehicle History Summary Accident ...Universal. Allison 29549684 Transmission Pan Gasket. $65.82. Universal. Allison 29561637 PTO Cover Gasket. $13.90. Universal. Shop Transmission Options for the GM Duramax 6.6L 2001-2004 LB7! XDP carries all the parts and accessories you need for the best diesel performance.Chevrolet Silverado 2500HD, 3500HD GMC Sierra 2500HD, 3500HD: VIN Code: 2 (8th digit of VIN) Common Names: LLY, Duramax: Configuration: V8: Displacement: 403 cubic … ….

227.7” x 74.4” Dimensions. Rear-wheel drive. Drivetrain. View all 2004 Chevrolet Silverado 2500 specs . Overview. 4.5 (31 reviews) The good: Performance with gas V-8. …Used 2004 Chevrolet Silverado 2500 Crew Cab pricing starts at $9,521 for the Silverado 2500 Crew Cab LS Pickup 4D 6 1/2 ft, which had a starting MSRP of $31,540 when new. ... The Duramax Diesel ...With its 1950s styling, the 1957 Chevy is a timeless car. This article will show you how to draw this cool classic car in just five simple steps. Advertisement The 1957 Chevy is on...T. truckman148 Discussion starter. 2 posts · Joined 2012. #1 · Mar 8, 2012. i am in the market for a 2004 chevy duramax for my son for a first truck. I have heard that the 2002-03's have had some issuse with injectors and other things. I am wanting to get him a dependable truck and when i purchase the truck it will have between 90k-130k miles.For 2001-2004 Chevy/GMC 2500/3500 6.6L Duramax Gain +100hp/+230lb-ft 10% more MPG Limited Inventory MSRP $1,176.67. From $739.00 MSRP $1,176.67. 50 State Compliant CARB E.O. D-161-93. Learn more. Configure. Calibrated to safely give you the full power potential of your work or sport Duramax truck without soot, Banks Power’s …Vehicle is in my signature. 2012 LML CCSB Motor Ops, 4" Flo Pro with 3" DP. Here's the answer to the above question with some help of the dealer. 1.6lbs of refrigerant for a full charge from empty. Oil is a PAG 46 and maximum fill capacity is 7.1oz but recommended a minimum of 2oz for a recharge. 2012 LML CCSB Motor Ops, 4" Flo Pro …When towing a decent load (37' 5th wheel toy hauler) with in a hour, the low coolant light comes on. It is being blown out of the tube on the overflow tank. I have to be super careful taking the cap off, because there is so much pressure building up that it will blow the cap out of the air and shoot a geyser of coolant 15' in the air.Jul 15, 2020 ... LIFTED 2004 CHEVROLET SILVERADO 2500 LS 4x4 with a 6.0L V8! CALL or TEXT MARK 540-848-2974 -Rough Country Suspension kit! 2004 chevy 2500 duramax, Rating breakdown (out of 5): Comfort 4.3. Interior 4.1. Performance 4.6. Value 4.4. Exterior 4.4. Reliability 4.5. Write a review. Explore the 2004 Chevrolet Silverado 2500., Browse all MagnaFlow 2004 Chevrolet Silverado 2500 HD Exhaust Systems online now. Buy the power and sound you demand for your 2004 Chevrolet Silverado 2500 ..., The LLY was the second generation Duramax diesel production from 2004 to 2006. It is found in Chevrolet Silverado and GMC Sierra 2500 and 3500 pickup trucks in addition to the Chevrolet Kodiak and GMC TopKick medium duty trucks. The 6.6L Duramax LLY was eventually phased out to make way for the next generation LBZ during the 2006 model year., 4.7. Reliability. 4.8. Styling. 4.7. See More Reviews. Advertisement. See pricing for the Used 2004 Chevy Silverado 2500 HD Crew Cab LS Pickup 4D 6 1/2 ft. Get KBB Fair Purchase Price, MSRP, and ..., Description. FICM/IDM for 2004.5-2005 GM 6.6L Duramax LLY Diesel. Part #’s 97303751 / 0 281 011 134. Please Select New OEM or Reman in Options. Lifetime Warranty. Diesel Injector Driver Module (IDM) or Fuel Injector Control Module (FICM) is manufactured and tested to the strictest OE standards for unparalleled performance., Producing 235-300 horsepower and 500-520 lb/ft of torque, the LB7 Duramax was a beast. It was a huge success that ultimately led to the creation of other Duramax engines including the LBZ, LMM, LML, and L5P. To help those of you who currently own an LB7, or those who want to purchase one, we’ve compiled a pretty massive list of LB7 Duramax specs., 2004.5 Chevy Silverado (J.T.) 2500HD "Dirt Nasty" LLY Currently under construction for ODL:cookoo[1]: EFI Live Tuned By Mark Broviak @ Danville Performance Danville Performance Specializing in GM Performance including Duramax Diesels from stock to Full out competition trucks. Custom EFILive tuning, In house Dynojet 224LC …, Check if this fits your 2004 Chevrolet Silverado 2500 HD. Select store. for pickup availability. Standard Delivery by May 04. Add TO CART. Notes: Fuel Pump Module Assembly. 96.0 bed length. 133.0, 157.5, 167.0" wheelbase. Without evaporative emission. Module has 1 Electrical Connector (s). PRICE: 366.99., '04.5 Silverado 2500 HD LLY/Allison Dark Spiral Gray Metallic, EC/LB LT 4x4, leather, Nerf bars, DiabloSport Predator v9r05 (+80 hp:thumbsup), Power Service, AC Delco stock filter w/TxC CAI, ... 2004 gmc duramax I have a 2004 gmc 3500 6.6 it gose into a limp mode. I had the dealer put a updated wire harness in and the problem went away …, Mileage: 84,609 miles Color: Green Body Style: Chassis Engine: 8 Cyl 6.0 L Transmission: Automatic. Description: Used 2004 Chevrolet Silverado 3500 Work Truck with Four-Wheel Drive, Skid Plate, Trailer Wiring, Off-Road Package, Locking Differential, 16 Inch Wheels, Vinyl Seats, Independent Suspension, Front Bench Seat, and Steel …, Detailed specs and features for the Used 2004 Chevrolet Silverado 2500HD including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. , 2004 Silverado 2500hd/Lt, LB7,2wd crew cab with Allison 5spd., summit white. Stock for now with 305/70/16 Nitto Terra Grapplers on factory alloys, with self built custom lumber rack painted to match truck. ... I have a 2002 gmc sierra duramax crewcab and both the front and rear passenger windows do not work they don't go up or down no …, Generally, a 6.6 Duramax engine requires around 10 quarts of 15w40 or 5w40. This depends on the weather conditions and your driving habit. This article explains more about the oil type, specifications, and capacity for your 6.6 Duramax engine. You also can pick the right product from the most recommended products in the market. , Jan 10, 2017 · In my '04 2500HD My ABS light comes on intermittently, Code Reader tells me C0055 is rear ABS sensor. So I replaced the Rear Speed/ABS sensor in the Transfer Case but no luck still getting intermittent ABS light. Read this can be a wiring problem so unplugged and re-plugged ABS harness connectors I could find and cleaned up the ground wires ... , Find the best used 2004 Chevrolet Silverado 2500HD near you. Every used car for sale comes with a free CARFAX Report. We have 98 2004 Chevrolet Silverado 2500HD vehicles for sale that are reported accident free, 27 1-Owner cars, and 94 personal use cars., The LLY Duramax engine found on 2004-2006 Chevrolet/GMC HD trucks is the second generation of the Duramax line. It can last hundreds of thousands of miles, but it still has its fair share of issues. ... For 2004.5+ LLY/LBZ Duramax trucks the Bank’s Boost Tube Upgrade Kit offers vastly improved performance over the stock boost tube. It’s the ..., Detailed specs and features for the Used 2004 Chevrolet Silverado 2500HD including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. , Jake, 01/20/2010. 2004 Chevrolet Silverado 2500HD 4dr Extended Cab LS 4WD LB (6.0L 8cyl 5M) 12 of 13 people found this review helpful. This is a very good truck. It has not needed a repair for 6 ..., duramaxbd03. 14489 posts · Joined 2008. #2 · Sep 19, 2009. yes i would like to no this as welll. 2007.5 Silverado 2500HD 4X4 Reg Cab LB, LMM, RED. Edge Cts, 4inch exhaust, Efi Live. 2005 Silverado 2500HD 4x4, Reg Cab LB, LLY, RED. 285/50/20 Nitto 420s, 20x10 Gear Alloy 726MB. Edge Insight, Autometer gauges, 3inch Drop Shackles., Mar 30, 2006 · RayIN. RPM's shuld be smooth and constant at idle if all is well. The most common culprit is a tiny air leak in the fuel system somewhere. Inspect the flexable fuel lines from the tank to the fuel pump, if there is even the tinest air leak, surging, hard starting, and infrequently small drops of fuel on the driveway happen. , Jun 22, 2021 · The Allison automatic was the much more popular choice among buyers. The LB7 Duramax was offered in the 2001-2004 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/300HD twins, as well as the medium-duty Chevrolet Kodiak and GMC TopKick. The 1999-2006 body style (GMT800) is considered a First-Generation Silverado or Second-Generation Sierra. , Chevrolet Silverado 2500HD LT 2004 & Chevrolet Beauville Van 1978. Save Share. Like. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, …, Replacing speakers in a vehicle is one of the simplest and most cost-effective ways of improving the sound in your car. The Chevrolet Colorado is a good candidate for speaker repla..., RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog., Dorman OE Solutions 10-3/4, 20, 50-1/2 Inch Long Nylon, Plastic Fuel Line - 904-012. Part #: 904-012. Line: DOR. Check Vehicle Fit. Fuel Line Rear; 78.0 Inch (6 Foot 6 Inch) Bed; Crew Cab Or Extended Cab; Evaporative Hose From Module To Rear Fuel Tank Vent. Limited Lifetime Warranty. Material: Nylon, Plastic., Olympic White 2004 GMC Sierra 2500HD Work Truck 4WD Allison 1000 5-Speed Automatic Duramax 6.6L V8 Turbodiesel Duramax 6.6L V8 Turbodiesel, Allison 10... AutoCheck Vehicle History Summary Accident ... , 2004 Chevrolet Silverado 2500HD LT LLY Duramax Engine, Allison 1000 Transmission, 6" Fabtech Lift, 35" Toyo Mudders, 18" Forged Weld Racing Wheels, 4" Magnaflow Catback Exhaust, Rhino Lined bed, 07 and 11 body badging, AFE Pro Dry Air Filter, DIY Airbox Porting, Foil removed from Fender, PCV Re-route, EGR Block Plate …, Detailed specs and features for the Used 2004 Chevrolet Silverado 2500HD including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. , Every module has a build number which has the hardware and software version numbers in it. When you replace the module you either need to get one with the same version number or there are online third party companies that can program it for you. Alternatively you need the dealer to install and program it. Like. M., The LB7 Duramax 6.6L diesel engine was considered revolutionary when it debuted in 2001. Features such as a common rail fuel system, direct injection, and aluminum cylinder heads set it apart from the competition. From Crate Engines to Tie Rod Ends, XDP has all the parts to get your 2001-2004 Chevrolet Silverado or GMC Sierra 2500HD/3500HD back ..., Rusty’s Duramax. 2004 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 5 Speed Added May 2021 • 115 Fuel-ups. Property of Firejammer135 . 13.2 Avg MPG. , , 2004 GMC Sierra 2500 HD. Hey there, just registered so I could post up some non-powertrain questions - getting hacked by the dealer (over the years) and thought it'd be helpful to have a source for input. Got my Duramax in 2004 so I could keep up with others when we tow our Land Cruisers (SOA FJ40 on 39" Krawlers) up to North Carolina for rock ...