Chevrolet S-10

Chevrolet S-10
Manufacturer	General Motors
Production	1982–2004
Assembly	Shreveport, Louisiana Sao Paulo, Brazil
Predecessor	Chevrolet LUV
Successor	Chevrolet Colorado/GMC Canyon
Class	Compact pickup truck
Layout	Front engine, rear-wheel drive / four-wheel drive

The Chevrolet S-10 was a compact pickup truck from the Chevrolet marque of General Motors. 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 the GMC Syclone. The truck was also sold by Isuzu as the Hombre from 1996 through 2000. 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 trucks are often referred to as the S-series. In 2004, the S-series was replaced by new models: the Chevrolet Colorado, GMC Canyon, and Isuzu i-Series.

First generation

First generation
Also called	GMC S-15 GMC Sonoma
Production	1982–1993
Engine(s)	1.9 liter, 2.0 liter 2.2 2.5L I4 2.8 liter 4.3 liter, 4.3 liter VORTEC V6
Transmission(s)	3-speed 200C, 4-speed 700r4, 4-speed 4L60, 4-speed 4L60E automatic Borg Warner T5 manual
Length	178.2 in. (reg. cab short bed) 194.2 in. (reg. cab long bed) 192.8 in. (ext. cab short bed)
Width	64.7 in. 64.8 in (S-15)
Height	61.3 in. (Regular) 63.4 in. (Extended)
Fuel capacity	13.2 gal. 19 gal.

1991-93 Chevrolet S-10 regular cab

The first compact pickup truck from General Motors 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 trucks were introduced in 1982. The Chevrolet and GMC models were identical apart from the grille. An extended cab and "Insta-Trac" four wheel drive were added the next year along with two new engines.

Track width was similar to the former GM H-body subcompacts (Vega/Monza).

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 trend 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 OHV I4 in favor of Pontiac's Iron Duke. The OHV-derived 2.2 L engine and Isuzu 1.9 L were both 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 are 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 4.3L V6 Vortec W code engine. This generation's last year, 1993.

The Vortec is essentially the standard Z code 262 in³ engine. The difference is the W code used a balance shaft, roller cam shaft, different heads, and Central Port Injection. The 1992 and 1993 engine came in either a 195 or 205 hp rating. The High Performance version came with a larger diameter Y pipe, and was only installed in some of the Blazers and S-10 Jimmys.

Engines

Years	Engine	Power	Torque	VIN code
1982–1985	1.9 L Isuzu I4, 2 barrel	84 hp (63 kW)	101 ft·lbf (137 N·m)	A
1982–1985	2.8 L 60° V6, 2 barrel Rochester	115 hp (86 kW)	148 ft·lbf (201 N·m)	B
1983–1985	2.2 L Diesel I4	58 hp (43 kW)	93 ft·lbf (126 N·m)	S
1983–1984	2.0 L OHV I4, 2 barrel	83 hp (62 kW)	108 ft·lbf (146 N·m)	Y
1985–1989	2.5 L Iron Duke I4, electronically controlled carburetor	92 hp (69 kW)	132 ft·lbf (179 N·m)	E
1986–1993	2.8 L 60° V6, TBI	125 hp (93 kW)	150 ft·lbf (203 N·m)	R
1988–1995	4.3 L GM 262inch 4300cc V6, TBI	150–165 hp (112–123 kW)	230–235 ft·lbf (312–319 N·m)	Z
1990–1993	2.5 L Iron Duke I4, TBI	105 hp (78 kW)	135 ft·lbf (183 N·m)	A

1993 Sonoma

Some 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.

Second generation

Second generation
Also called	GMC Sonoma Isuzu Hombre
Production	1994–2004
Engine(s)	2.2L 120 hp (89 kW) I4 4.3L 165 hp (123 kW) V6 4.3L 190 hp (140 kW) V6
Transmission(s)	4-speed 4L60E automatic NV1500 (1996 and up with I4 engine)manual NV3500 (1990 and up with V6 engine)manual
Length	203.3 in. (ext. cab short bed) 188.8 in. (1994-95 S-10 Regular Cab Short Bed) 204.7 in. (1994-95 S-10 Regular Cab Long Bed) 203.4 in. (1994-95 S-10 Extended Cab) 188.6 in. (1996-97 S-10 Regular Cab Short Bed) 204.6 in. (1996-97 S-10 Regular Cab Long Bed) 203.3 in. (1996-97 S-10 Extended Cab) 190.1 in. (1998-2003 S-10 Regular Cab) 204.8 in. (1998-2003 S-10 Extended Cab) 206.1 in. (1998-2003 S-10 Regular Cab Long Bed 2WD) 205.3 in. (Crew Cab & 2001-03 Sonoma Extended Cab 4WD) 190.6 in. (1998-2003 Sonoma Regular Cab Short Bed) 206.6 in. (1998-2003 Sonoma Regular Cab Long Bed 2WD) 189 in. (1996-97 Sonoma Regular Cab Short Bed) 205 in. (1996-97 Sonoma Regular Cab Long Bed) 203.7 in. (1996-97 Sonoma Extended Cab) 190.3 in. (1994-95 Sonoma Regular Cab Short Bed) 206.2 in. (1994-95 Sonoma Regular Cab Long Bed) 204.9 in. (1994-95 Sonoma Club Coupe)
Width	67.9 in. Sonoma Crew Cab: 67.8 in.
Height	63.0 in. (1994-95 S-10 Regular Cab 2WD) 61.9 in. (1994-95 S-10 Extended Cab 2WD) 64.5 in, (1994-95 S-10 Regular Cab 4WD) 64.6 in. (1994-95 S-10 Extended Cab 4WD) 63.2 in. (1996-97 Regular Cab 2WD) 63.3 in. (1996-97 Extended Cab 2WD) 63.9 in. (1996-97 Regular Cab S-10 4WD) 65 in. (1996-97 S-10 Extended Cab 4WD) 63.4 in. (1998-2004 4WD) 62 in. (1998-2003 Regular Cab Short Bed 2WD) 62.9 in. (1998-2003 Regular Cab Long Bed 2WD) 62.7 in. (1998-2003 Extended Cab 2WD) 65.4 in. (1996-97 Sonoma Regular Cab Long Bed 4WD) 63.9 in. (1996-97 Sonoma Extended Cab 4WD) 62.1 in. (1996-97 Sonoma 2WD) 59.6 in. (1994-95 Sonoma 2WD) 61.3 in. (1994-95 Sonoma 4WD)
Fuel capacity	19 gal.

The second-generation trucks appeared in 1994. All of the special models (the Syclone, Typhoon, and Sonoma GT) were gone, but the changes to the truck brought it in line with arch-rival Ford Ranger. The Iron Duke and 2.8 L 60° V6 engines were dropped, leaving just the 4.3 L Vortec and a new 2.2 L engine, itself a derivative of the old Cavalier OHV.

Much 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. The second generation also offered an optional 8.5" rear differential.

1998-2003 GMC Sonoma regular cab

Generally, for the 2WD trucks, the 8.5" rearend was only used when it came with both a manual transmission and the large 262cid V6 engine; it was standard for 4WD trucks with either transmission. This was also the year that GM introduced the ZR2 Offroad Package.

2002 S10 ZR2

Chevrolet S-10 crew cab

The 4.3 L engines were refreshed for 1996 and a third (rear) door was added for extended cab models. The exterior, interior, brakes, and 2.2 L engine were refreshed for 1998, and "Auto-Trac" all-wheel drive was optional starting in 1999 for the Blazers. Also the SS package was replaced by the "Xtreme" sports model package (which lasted until 2004). In 2001 a Crew Cab option was added and was available in 4WD and automatic transmission only.

Base 2WD models came with 15x6.5 inch wheels with directional vents, Xtreme and ZQ8 models came with 16x8" wheels while 4WD models (including the ZR2) used 15x7" wheels. The 14-inch (360 mm) wheels used on the first generation were discontinued.

Second-generation S-series were also produced locally in Brazil; and are still in production even though the North American version of the S-series was discontinued in 2004. Brazilian S-10s have a different front grille, lamps and bumper, and are available with a 2.8 Diesel engine built by MWM.

Engine Swaps

The 2wd S-series Truck shares several front suspension components with the GM G-body platforms (I.e. Chevy Monte Carlo and Buick Regal). 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 cid to the large 400 cid engine. Some owners have even been able to install the large big block GM engines such as the 396-427-454 cid engines with minor modifications.

Engines

Years	Engine	Power	Torque	VIN code
1994–1999	2.2 L Vortec 2200 I4, SFI	118 hp (86 kW)	140 ft·lbf (190 N·m)	4
1993–1995	4.3 L Vortec 4300, CMFI	191–200 hp (142–145 kW)	260 ft·lbf (353 N·m)	W
1996–2002	4.3 L Vortec 4300, CSFI	180–190 hp (134–142 kW)	245–250 ft·lbf (332–339 N·m)	X or W