2003 GMC Sonoma

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	2003 GMC Sonoma (Regular Cab) - Review 2003 GMC Sonoma (Crew Cab and Extended Cab) - Review 2003 GMC Sonoma - Photos 2003 GMC Reviews 2003 GMC Sonoma - Price Quote Visit GMC for more information on the GMC Sonoma.

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Model Lineup	Engine		Transmissions
Model Lineup	Vortec 4300 4.3L V6	4-spd auto (Hydra-Matic 4L60-E)	5-spd man (MW2)	5-spd man (M50)	4-spd auto (Hydra-Matic 4L60-E)
2WD Regular Cab	Standard	Optional	Standard	-	Optional
2WD Regular Cab long box	Standard	Optional	-	-	Standard
2WD Extended Cab	Standard	Optional	Standard	-	Optional
4WD Extended Cab	-	Standard	-	Standard	Optional
4WD Crew Cab	-	Standard	-	-	Standard

Engine	Vortec 2200 2.2L L4 (L43)	Vortec 4300 4.3L V6 (L35)
Type	2.2-liter inline four cylinder	4.3-liter V6
Application	standard with 2WD models	standard with 4WD models
Application	standard with 2WD models	optional with 2WD models
Displacement (cu in / cc)	134 / 2189	262 / 4293
Bore & stroke (in / mm)	3.50 x 3.46 / 89.0 x 88.0	4.00 x 3.48 / 101.6 x 88.39
Block material	cast iron	cast iron
Cylinder head material	cast aluminum	cast iron
Valvetrain	pushrod, OHV, 2 valves per cylinder	pushrod, OHV, 2 valves per cylinder
Ignition system	distributorless, platinum-tipped spark plugs	composite distributor, platinum-tipped spark plugs low-resistance spark plug wires
Fuel delivery	sequential fuel injection	sequential fuel injection
Compression ratio	9.0:1	9.2:1
Horsepower (hp / kw @ rpm)	120 / 89 @ 5000	2WD: 180 / 134 @ 4400
Horsepower (hp / kw @ rpm)	120 / 89 @ 5000	4WD: 190 / 142 @ 4400
Torque (lb-ft / Nm @ rpm)	140 / 190 @ 3600	2WD: 245 / 332 @ 2800
Torque (lb-ft / Nm @ rpm)	140 / 190 @ 3600	4WD: 250 / 339 @ 2800
Recommended fuel	87 octane (85 percent ethanol capable)	87 octane
Maximum engine speed (rpm)	6000	5600
Emissions controls	three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system	three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system
Estimated fuel economy (mpg city / hwy / combined)	5-speed manual: 22/28 /24	5-speed manual: 17/ 22/19
Estimated fuel economy (mpg city / hwy / combined)	4-speed auto: 19/25/21	4-speed auto: 16/22/18

Transmissions	MW2	M50	Hydra-Matic 4L60-E
Type	5-speed manual	5-speed manual	4-speed auto
Gear ratios (:1):
1st	3.96	3.49	3.06
2nd	2.37	2.16	1.63
3rd	1.49	1.40	1:00
4th	1.00	1.00	0.70
5th	0.83	0.73	-
Reverse	3.54	3.55	2.29
Final drive ratio	3.08-4.10:1
Final drive ratio	3.73:1 standard with ZR2 wide stance package

Chassis / Suspension	2003 GMC Sonoma
Front	independent with upper and lower control arms, 25mm stabilizer bar (33mm with ZQ8 suspension); 2WD: coil spring; 4WD: torsion bar
Rear	two-stage, variable-rate, multileaf springs, 25mm stabilizer bar (23mm with ZQ8 suspension)
Steering type	variable-ratio, integral power, recirculating ball-type
Steering ratio	13:1 (2WD or 4WD at stop)
Steering wheel turns, lock-to-lock	2WD: 2.8
Steering wheel turns, lock-to-lock	4WD: 3.2
Turning circle, curb-to-curb (ft / m)	Reg. Cab Short Box: 37 / 10.6
Turning circle, curb-to-curb (ft / m)	Ext. Cab: 41.6 / 12.7

Brakes	2003 GMC Safari
Type	2WD: vacuum power, front disc / rear drum, ABS
Type	4WD: vacuum power, 4-wheel disc, ABS
Rotor diameter x thickness (in / mm)	Front: 2WD: 10.05 x 1.03 / 267 x 26
	Front: 4WD: 10.82 x 1.14 / 275 x 29
	Rear: 4WD, 11.6 x .787 / 295 x 20
Drum diameter x width (in / mm)	rear: 2WD, 9.5 x 2.0 / 255 x 26
Total swept area (sq in / sq cm)	front: 190.1 / 3115.1
Total swept area (sq in / sq cm)	rear: 118.5 / 1941.9

Wheels / Tires	2003 GMC Sonoma
Wheel size & type	2WD, 4WD: 15-inch x 7.0-inch steel
Wheel size & type	4WD Crew Cab: 15-inch x 7.0-inch aluminum
Tires	4WD Crew Cab: 15-inch x 7.0-inch aluminum
	4WD: P235/70R15 standard all-season steel-belted radial blackwalls optional
	4WD with Z85 suspension: P235/75R15 on-/off-road steel-belted radials with white outline letters
	ZR2 models: 31-inch x 10.5-inch R15 LTC on-/off-road steel-belted radial blackwalls 2WD with ZQ8 suspension: P235/55R16 all-season, steel-belted radial blackwalls full-size spare standard on ZR2-equipped models and available on others (excluding those with the ZQ8 package)

Exterior Dimensions		Reg. Cab 2WD	Reg. Cab 2WD Long Box	Ext. Cab 2WD	Ext. Cab 4WD	Crew Cab 4WD
Wheelbase (in / mm)		108.3 / 2751	117.9 / 2995	122.9 / 3122	122.9 / 3122	122.9 / 3122
Overall length (in / mm)		190.6 / 4841	206.6 / 5248	205.3 / 5215	205.3 / 5215	205.3 / 5215
Overall width (in / mm)		205.3 / 5215	67.9 / 1725	67.9 / 1725	67.9 / 1725	67.9 / 1725
Overall height (in / mm)		62 / 1575	62 / 1575	62.7 / 1593	63.4 / 1610	63.4 / 1610
Track (in / mm)	Front	54.4 / 1381	54.9 / 1394	54.5 / 1384	57.2 / 1453	57.2 / 1453
Track (in / mm)	Rear	54.6 / 1387	54.6 / 1387	54.6 / 1387	55.1 / 1400	55.1 / 1400
Minimum ground clearance (in / mm)	Front	9.1 / 234	8.7 / 221	9.1 / 234	8.5 / 216	8.5 / 216
Minimum ground clearance (in / mm)	Rear	7.2 / 183	6.7 / 170	7.2 / 183	7.5 / 191	7.5 / 191
Ground to top of load floor (in / mm)		25.9 / 656	28.1 / 714	27.7 / 704	27.2 / 691	27.2 / 691
Step-in height (in / mm)		17.3 / 439	18.2 / 462	17.9 / 455	18.7 / 475	N/A
Curb weight: (lbs / kg)		3042 / 1380	3314 / 1503	3212 / 1457	3788 / 1718	4234 / 1920
Weight distribution (% front / rear)		57 / 43	57/ 43	57 / 43	61 / 39	59 / 41

Cargo Box	Short Box	Long Box	Crew Cab Box
Cargo volume (cu ft / liters)	39.4 / 1101	N/A	30.2 / 855
Length at floor (in / mm)	72.8 / 1849	N/A	55.2 / 1402
Width at floor (in / mm)	54.9 / 1394	54.9 / 1394	56.6 / 1438
Width at top (in / mm)	54.9 / 1394	54.9 / 1394	56.6 / 1438
Width between wheelhousings	40.3 / 1024	40.3 / 1024	40.4 / 1026
Tailgate width (in / mm)	54.9 / 1394	54.9 / 1394	56.6 / 1438
Inside height (in / mm)	17.1 / 434	17.1 / 434	17.1 / 434

Interior Dimensions		Regular Cab	Extended Cab	Crew Cab
Seating capacity		2 / 3	3 / 4	5
Head room (in / mm)	Front	39.5 / 1003	39.6 / 1006	39.4 / 1002
Head room (in / mm)	Rear	-		38.2 / 970
Legroom (in / mm)	Front	42.4 / 1076	42.4 / 1076	42.7 / 1084
Legroom (in / mm)	Rear	-		34.6 / 878
Shoulder room (in / mm)	Front	56.9 / 1443	56.9 / 1443	57.1 / 1450
Shoulder room (in / mm)	Rear	-		57.2 / 1452
Hip room (in / mm)	Front	53.6 / 1361	51.6 / 1311	53.6 / 1361
Hip room (in / mm)	Rear	-		53.7 / 1363

Capacities		Regular Cab	Extended Cab	Crew Cab
GVWR, standard (lbs / kg)	2WD	4200 / 1905	4400 / 1996
GVWR, standard (lbs / kg)	4WD		5150 / 2336	5150 / 2336
Payload, base (lbs / kg)	2WD	1157 / 525	1188 / 539
Payload, base (lbs / kg)	4WD		1362 / 618	1111 / 504
Fuel tank (gals / liters)		18 / 68.1	18.3 / 69.3	17.5 / 66.3

Capacities		Vortec 2200	Vortec 4300
Engine oil (qts / liters)		4.5 / 4.3	4.5 / 4.3
Cooling system: (qts / liters)	manual	11.5 / 10.8	11.9 / 11.3
Cooling system: (qts / liters)	auto	11.5 / 10.8	11.7 / 11.1
Maximum trailer weight (lbs / kg)	2WD Regular Cab	3100 / 1406	5900 / 2676
	2WD: Extended Cab	3000 / 1360	5600 / 2540
	4WD: Extended Cab	-	5500 / 2494
	4WD Crew Cab	-	5200 / 2358
Maximum tongue weight	Tongue load should be 10-15 percent of total trailer weight up to 750 lbs. (340 kg)

Although New-Cars.com checks with auto manufacturers and their representatives to confirm the accuracy of the data, it makes no guarantee or warranty, either expressed or implied with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

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