GMC Sierra 3500 Experts

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GMC Sierra 3500 Model Overview

GMC Sierra 3500 Questions


Gmc 3500 350 Wont Stay Running Under Power Or In Gear

I have a 1994 GMC Sierra with 5.7L TBI . Issue is the truck will start and idle but as soon as you put into any gear the truck stalls out unless you give it gas, it will idle rough in gear however whe...

15 views with 2 answers (last answer about a day ago)

Replaced Starter Got 2 New Batteries Won't Start Just Clicks At Starter Any...

didn't start for a couple days but was pluged in when went to start in morning like always started fine let warm up went to gas station shut off come out won't start got jump ran around all day let ...

13 views with 3 answers (last answer about a month ago)

Will 96 Chevy 2500 4 By 4 Tranny Work In 98 Gmc 4 By 4 3500

18 views with 1 answer (last answer about a month ago)

My 95 Gmc Won't Start My Computer Tells Me That It Has Rich Exhaust And Cod...

My 95 GMC won't start. My diagnostic tool says that rich exhaust is indicated ( left side on dual oxygen models) and says DTC 54 fuel pump circut fault or mixture control solenoid fault or electroni...

11 views with no answers yet

How Hard To Replace Foward Belts In A 1986 Gmc Sierra 3500 Dually Transmiss...

Recently checked fluid level .drove to store aprox 8 miles got into leave had no fowrd gears checked fluid had lost 3quarts no burnt smell refilled still nothing so i puet it in reverse and drove...

21 views with 3 answers (last answer 4 months ago)

About the GMC Sierra 3500

Thar's silver in them thar hills.  Or at least a bit of Silverado in the Sierras.  The GMC Sierra is a heavy-duty work truck version of its more luxurious Chevy Silverado sibling, and together, the pair outsell the Ford F-Series of pickups.  The 3500 is the one-ton version and first appeared on the market in 1988 initially in three trim levels (SL, SLE, and SLT) and a variety of cab lengths, from the one-row Regular to the two rows in both Extended and Crew Cabs.  The workhorse was available in either rear-wheel or four-wheel drive with a choice of V8 engines.

Besides its extra heft and towing capacity of up to 12,000 pounds, the Sierra 3500's main distinction from the 1500 and 2500 was the availability of either single or dual rear wheels.  The first generation saw few changes beyond minor styling tweaks until 1998.  From 1999 to 2000, the 3500 was known as the Classic.  Its third generation lasted until 2006, where it added a Work Truck designation and offered three powerful V8s -- a 300-hp 6.0, a 330-hp 8.1, and the preferred 6.6 turbodiesel Duramax paired with a smooth and responsive Allison 6-speed auto tran.  The Duramax gained horsepower over the past few years and by 2007, it hit 365-hp and 660 lb-ft of torque.  

Though not as upscale as the Silverado, the Sierra 3500 did combine creature comforts with its utilitarian muscle in the SLT trim, which included power features and leather upholstery.  Though most owners praised the interior roominess and excellent hauling performance of the 3500, many were disappointed by the outdated, plastic interior.  A revamped Sierra 3500 in 2007 addressed these concerns by adding more refined materials for both the hard surfaces and the seats.  Both the 6.0 and 6.6 V8 upped their horsepower and torque ratings.  The 2007 Sierra 3500 was also renamed the 3500HD, though a 3500 Classic work truck was still offered.