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|Chevrolet S-10/GMC Sonoma|
|Production||1982–2004 (North America)
|Body and chassis|
|Class||Compact pickup truck|
|Layout||Front engine, rear-wheel drive / four-wheel drive|
|Wheelbase||108.3 in (2,751 mm) (reg. cab short bed)
117.9 in (2,995 mm) (reg. cab long bed)
122.9 in (3,122 mm) (ext. cab short bed)
|Successor||Chevrolet Colorado / GMC Canyon (North America only)|
The Chevrolet S-10 is a compact pickup truck from the Chevrolet marque of General Motors. It was the first compact pickup of the big three American automakers. When it was first introduced in 1982, the GMC version was known as the S-15 and later renamed the GMC Sonoma. A high-performance version was released in 1991 and given the name of GMC Syclone. The pickup was also sold by Isuzu as the Hombre from 1996 through 2000, but was only sold in North America. There was also an SUV version, the Chevrolet S-10 Blazer/GMC S-15 Jimmy. An electric version was leased as a fleet vehicle in 1997 and 1998. Together, these pickups are often referred to as the S-series.
The S-Series ended production in Brazil in 2012, being replaced by the Chevrolet Colorado, but still with the name S-10.
First generation (1982-1993)
Shreveport, Louisiana, United States
|Body and chassis|
|Engine||1.9 L Isuzu I4
151 cu in (2.5 L) Iron Duke I4
173 cu in (2.8 L) 60° V6
262 cu in (4.3 L) 90° V6
2.2 L Isuzu Diesel I4
5-speed Borg Warner T5 manual
The first compact truck from the big three automakers was the rebadged Isuzu KB sold since 1972 as the Chevrolet LUV. The 1973 Arab oil embargo forced GM to consider designing a domestically produced compact pickup truck. As usual, parts from other GM chassis lines (primarily from the GM G-body intermediates) were incorporated. The first S-series pickups were introduced in 1982. The Chevrolet and GMC models were identical apart from the grille, tailgate and assorted insignia. An extended cab and "Insta-Trac" four-wheel drive were added the next year along with two new engines.
The sport utility S-10 Blazer and S-15 Jimmy debuted in 1983; GM was the second to introduce compact sport utilities, behind Jeep but ahead of Ford. This occurred again where 4-door variants were introduced in March 1990 as 1991 models alongside the similar Oldsmobile Bravada.
New heavy-duty and off-road suspensions appeared in 1984 along with a hydraulic clutch, while the big news for 1985 was the discontinuing of the Cavalier's 2.0 L OHV I4 in favor of Pontiac's 2.5 L "Iron Duke" OHV I4. The OHV-derived 2.2 L diesel engine and 1.9 L SOHC gas engine, both from Isuzu, were gone the next year, leaving just the Iron Duke and updated 2.8 L V6. A much-welcomed 4.3 L V6 was added for 1988, and anti-lock brakes came the next year.
The GMC S-15 became the GMC Sonoma in 1991, and the Sierra trim packages were dropped to avoid confusion with the new GMC Sierra full-size pickup. The GMC Syclone also appeared that year. The Sonoma GT bowed in 1992. Added to this was the 4.3 L V6 Vortec W code engine. This generation's last year was 1993.
The Vortec has a balance shaft, roller lifters, different heads, and Central Port Injection. The 1992 and 1993 engine came in either a 195 hp (145 kW) or 205 hp (153 kW) rating. The High Performance version came with a larger diameter Y pipe, and was only installed in some of the S-10 Blazers and S-15 Jimmies as well as the S-10 Pickups
|1982–1985||1.9 L LR1 Isuzu I4, 2-barrel||82 hp (61 kW) @ 4600 RPM||101 lb·ft (137 N·m) @ 3000 RPM|
|1983–1984||2.0 L LQ2 GM 122 I4, 2-barrel||83 hp (62 kW) @ 4600 RPM||108 lb·ft (146 N·m) @ 2400 RPM|
|1984–1985||2.2 L LQ7 Isuzu Diesel I4||62 hp (46 kW) @ 4300 RPM||96 lb·ft (130 N·m) @ 2200 RPM|
|1985–1986||2.5 L LN8 Iron Duke TBI I4,||92 hp (69 kW) @ 4400 RPM||134 lb·ft (182 N·m) @ 2800 RPM|
|1987-1989||92 hp (69 kW) @ 4400 RPM||130 lb·ft (176 N·m) @ 3200 RPM|
|1990||94 hp (70 kW) @ 4400 RPM||130 lb·ft (176 N·m) @ 3200 RPM|
|1991-1993||2.5 L L38 Iron Duke TBI I4,||105 hp (78 kW) @ 4800 RPM||135 lb·ft (183 N·m) @ 3200 RPM|
|1982||2.8 L LR2 60° V-6, 2-barrel||110 hp (82 kW) @ 4800 RPM||148 lb·ft (201 N·m) @ 2000 RPM|
|1983-1984||110 hp (82 kW) @ 4800 RPM||145 lb·ft (197 N·m) @ 2100 RPM|
|1985||115 hp (86 kW) @ 4800 RPM||150 lb·ft (203 N·m) @ 2100 RPM|
|1986||2.8 L LL2 60° V-6, TBI||125 hp (93 kW) @ 4800 RPM||150 lb·ft (203 N·m) @ 2200 RPM|
|1987-1993||125 hp (93 kW) @ 4800 RPM||150 lb·ft (203 N·m) @ 2400 RPM|
|1988–1992||4.3 L LB4 90º V-6, TBI||160 hp (119 kW) @ 4000 RPM||230 lb·ft (312 N·m) @ 2800 RPM|
|1993||165 hp (123 kW) @ 4000 RPM||235 lb·ft (319 N·m) @ 2400 RPM|
|1992-1993||4.3 L L35 90º V-6, CPI||195 hp (145 kW) @ 4500 RPM||260 lb·ft (353 N·m) @ 3600 RPM|
S-10 Baja Edition
The S-10 Baja is an optional appearance package that was put on any type 4wd S-10 (regular-cab w/ short-box, regular-cab w/ long box and extended-cab w/ short box) from 1988 to 1991. The trucks came in 3 colors: Midnight Black, Apple Red and Frost White. The Baja option included: a roll bar with off-road lights, a front tubular grille guard with fog lights, a tubular rear bumper, an under-body shield package (transfer case shield, front differential shield, fuel tank shield, oil pan/steering linkage shields), a suspension package, a Chevrolet windshield banner, Baja decals on the box sides and one inch wide body striping. Extra cost Baja options included: a cargo-net end-gate, aluminum outlaw wheels and a special box-mounted spare tire carrier w/ aluminum wheel. In 1991 the S10 Bajas came with BAJA embroidered on the seat backs and unique door panel trim.
The Sonoma GT was a performance package available on the 2WD regular cab short bed Sonoma. It was available for the 1992 model year only as an entry-level version of the GMC Syclone. A total of 806 were built. The truck was powered by an enhanced Vortec 4.3 L V6. It featured central multi-port fuel injection and produced 195 hp (145 kW) and 260 lb·ft (350 N·m) of torque. It was equipped with a 4L60 automatic transmission and a limited-slip differential with 3.42:1 gearing.
Modified by Prototype Automotive Services of Troy, Michigan, it was fitted with the Syclone interior package featuring black cloth bucket seats with red piping, a special gauge package, and a floor shift console.
Some 1992 and 1993 Sonomas came with a factory equipped L35 W code engine. For 1993 no specialty labeling or limited edition tags were known to be used with the W code engine. Production totals for these vehicles are unknown.
This GMC came with an LB4 4.3L V6 with lower compression pistons and a turbocharger. They produced ~280 hp.
Second generation (1994-2004)
|Also called||GMC Sonoma
|Production||1994–2004 (North America)
1996–2000 (Isuzu Hombre)
|Assembly||Shreveport, Louisiana, United States
Linden, New Jersey, United States
São José dos Campos, Brazil (GM Brazil)
|Body and chassis|
|Engine||2.2 L I4
4.3 L V6
|Transmission||4-speed 4L60-E automatic
5-speed Borg-Warner T-5 manual (1994–95 I4)
5-speed NV1500 manual (1996+ I4)
5-speed NV3500 manual (V6)
|Length||190 in (4,826 mm) (short bed)
203 in (5,156 mm) (ext. cab)
205 in (5,207 mm) (long bed)
|Width||67.9 in (1,725 mm)|
|Height||63.5 in (1,613 mm)|
The second-generation trucks arrived in the 1994 model year. All of the special models (the Syclone, Typhoon, and Sonoma GT) were discontinued, but the changes to the pickup brought it in line with its major competitor the Ford Ranger. The Iron Duke 4-cylinder and 2.8 L 60° V6 engines were retired, the 4.3 L Vortec V6 was enhanced, and a new 2.2 L 4-cylinder engine (which had been introduced in 1990 on various FWD GM compact and mid-size platforms) became the engines of choice to power the second generation of S-10's. In compliance with the Clean Air Act, all 2nd Generation S-10s and Sonomas equipped with air-conditioning used CFC-free R134a refrigerant beginning in the 1994 model year.
Many of the chassis components were the same as the first generation (the A-frames between the first and second generation were the same although they were originally sourced from GM's G-body vehicle lineup), along with the steering knuckle, leaf springs, and differential assembly but suspension and axles were greatly enhanced.
Generally, for the 2WD trucks, the 8.5-inch rear end was only used when it came with both a manual transmission and the large 4.3 L (262 cu in) V6 engine; it was an option for 4WD trucks with either transmission. This was also the year that GM introduced the ZR2 Offroad Package.
For 1995, a driver's-side air bag was added. In 1996 the 4.3 L engine was refreshed, and a third (rear) door was added for extended cab models, along with the sportside bed option. In 1998, the exterior, interior, brakes, and 2.2 L I4 engine were refreshed, along with a "next-generation" supplemental restraint system that added a passenger-side air bag. "Auto-Trac" all-wheel drive also became an option starting in 1999 for the 4WD Blazers. The SS package was replaced by the "Xtreme" package. In 2001 a crew cab option was added and was available in 4WD and automatic transmission only. For the 2004 model year, the regular and extended cab models were discontinued; only the crew cab model was retained.
Base 2WD models came with 15x6.5-inch wheels with directional vents, Xtreme and ZQ8 models came with 16x8-inch wheels while 4WD models (including the ZR2) used 15x7-inch wheels. The 14-inch (360 mm) wheels used on the first generation were discontinued.
The Chevrolet S-10 SS was a high-performance version of the S-10, introduced in 1994. Fewer than 3000 SS's were produced yearly on average. When introduced, the SS was sold in only three colors: Onyx Black, Summit White, and Apple Red. The SS was discontinued in 1998. In 1999, it was replaced by the S-10 Xtreme.
A 4.3-liter V6 (which was optional on regular S-10s) was the primary engine used in the SS version, producing between 180 and 195 hp (145 kW). The SS included lowered suspension (1996–98), cosmetic changes such as a different grille, body-colored bumpers, 16-inch wheels (1996–98), and other sporty touches. All SS versions were regular cabs. A step-side version was available from 1996 to 1998. The SS option package was only available with an automatic transmission and 3.42 posi-traction rear-end.
The ZR2 package was an off-road package available for the second generation Chevy S-10. The ZR2 package included a 4-inch (100 mm) wider track width, a boxed ladder-type frame with modified suspension mounting points, larger wheel and axle bearings, 31-inch all-terrain tires, a suspension lift (approximately 3 inches more ground clearance vs. a regular 4wd S-10), upgraded Bilstein suspension, fender flares, alloy wheels, and an 8.5-inch Chevy 10-bolt rear differential with 3.73:1 gears.
In 1996, Isuzu replaced its Pick Up with a rebadged S-10, the Hombre, based on the Brazilian S-10 (the front grille and fenders are based on the Brazilian S-10 along with the truck bed sheetmetal). The Hombre had a much smaller range of equipment options, and slow sales resulted in production ending in 2000. It would be another six years before Isuzu re-entered the pick-up market with the i-Series.
|1994–1997||2.2 L LN2/L43 Vortec 2200 I4||118 hp (88 kW) @ 5200 RPM||130 lb·ft (176 N·m) @ 2800 RPM|
|1998-2003||120 hp (89 kW) @ 5000 RPM||140 lb·ft (190 N·m) @ 3600 RPM|
|1994||4.3 L LB4 90º V-6, TBI||165 hp (123 kW) @ 4000 RPM||235 lb·ft (319 N·m) @ 2400 RPM|
|1995||155 hp (116 kW) @ 4000 RPM||235 lb·ft (319 N·m) @ 2400 RPM|
|1994||4.3 L L35 Vortec 4300 V-6, SCPI||200 hp (150 kW) at 4,500 rpm||260 lb·ft (353 N·m) at 3,600 rpm|
|1995||190 hp (140 kW) at 4,500 rpm||260 lb·ft (353 N·m) at 3,400 rpm|
|1996-1999 w/ 2WD||4.3 L LF6 Vortec 4300 V-6, SCPI||175 hp (130 kW) @ 4400 RPM||240 lb·ft (325 N·m) @ 2800 RPM|
|1996-1999 w/ 4WD||180 hp (134 kW) @ 4400 RPM||240 lb·ft (325 N·m) @ 2800 RPM|
|1996-2002 w/ 2WD||4.3 L L35 Vortec 4300 V-6, SCPI||180 hp (134 kW) @ 4400 RPM||245 lb·ft (332 N·m) @ 2800 RPM|
|1996-2002 w/ 4WD||190 hp (142 kW) @ 4400 RPM||250 lb·ft (339 N·m) @ 2800 RPM|
|2003 w/ 2WD||4.3 L LU3 Vortec 4300 V-6, MPFI||180 hp (134 kW) @ 4400 RPM||245 lb·ft (332 N·m) @ 2800 RPM|
|2003-2004 w/ 4WD||190 hp (142 kW) @ 4400 RPM||250 lb·ft (339 N·m) @ 2800 RPM|
Third generation (2012)
|Also called||Chevrolet Colorado
Holden Colorado (Australia)
São José dos Campos, Brazil (GM Brazil)
|Body and chassis|
Holden Colorado 7 SUV
|Engine||2.5 L (153 cu in) Duramax Diesel (TD) I4
2.8 L (171 cu in) Duramax Diesel (TD) I4
|Wheelbase||3,096 mm (121.9 in)|
|Length||5,367 mm (211.3 in)|
|Width||2,132 mm (83.9 in)|
|Height||1,785 mm (70.3 in)|
The Third Generation S-10 were also produced locally in Brazil. They continue to use the S-10 name for their small truck even though the North American version of the S-series was discontinued in 2004. Brazilian S-10s are available with a 2.8 L diesel engine built by MWM with 140 hp (104 kW) and a 2.4 L Petrol/E-96h ethanol FlexFuel engine with 147 hp (110 kW).
This truck is also sold in North America as the second generation Chevrolet Colorado. It's currently built at the same plant as the Brazilian S-10, but production of the U.S. spec model will eventually move to General Motors' assembly plant in Wentzville, MO. A $380 million expansion of 500,000 square feet will be constructed to support the new Colorado's assembly.
The 2wd S-series pickup shares several front suspension components with the GM G-body platforms. Along with the fact that the optional 4.3-liter V-6 shares several characteristics and dimensions of the early small-block Chevy V-8, it has become a popular platform for hot-rodders. Since the introduction of the S-series the ingenuity of its owners has made the V8 installation one of the most popular American domestic engine swaps. With relative ease the V-8 swap has seen almost every size small-block Chevy displacement produced from 262 in3 to the large 400 cu in (6.6 L) engine, including the popular LS series engines. Some owners have even been able to install the big-block GM engines such as the 396–454 in3 engines with minor modifications.
The chassis and running gear are also a common swap under older cars and pickups. This gives the advantage of using off the shelf parts, full independent front suspension, disc brakes and a complete late-model drivetrain. Most commonly, these are retrofitted under the body of an early 1950s Chevy pick up.
Engine code options
- 4- 2.2 L w/ MPFI or SFI,
- 5- 2.2 L w/ SFI and Flex Fuel Capable,
- W- 4.3 L w/ CPI,
- Z- 4.3 L w/ TBI,
- X- 4.3 L w/ SFI,
- X- ('03-'04) 4.3 L w/MFI
The eighth digit of the VIN denotes the engine code.
- Chevrolet S-10 Product Brochures. 1982-1993.
- Schroeder, Don (December 1992). "GMC Sonoma GT". Car and Driver.
- Chevrolet S-10 Product Brochures. 1994-2004.
- The Definitive S-10 Frame Swap Vehicle List at The Jalopy Journal
|Wikimedia Commons has media related to Chevrolet S-10.|
|GMC, a marque of General Motors, light truck timeline, United States and Canadian market, 1980s–present|
|Mid-size SUV||S-15 Jimmy||Jimmy||Envoy|
|Full-size SUV||K5 Jimmy||Yukon||Yukon||Yukon||Yukon|
|Suburban||Suburban||Yukon XL||Yukon XL||Yukon XL|
|Compact pickup||S-15 Sonoma||Sonoma|