MODEL IDENTIFICATION
Vehicle model is identified by fifth character of Vehicle Identification Number (VIN). VIN is stamped on metal pad on top of left end of instrument panel, near windshield. See MODEL IDENTIFICATION table.
| Series (1) | Model |
|---|
| "C" | 2WD Pickup, Sierra, Silverado, Suburban, Tahoe & Yukon |
| "E" | 2WD Tracker |
| "G" | Cutaway, Express, RV Cutaway & Savana |
| "J" | 4WD Tracker |
| "K" | 4WD Pickup, Sierra, Silverado, Suburban, Tahoe & Yukon, & AWD Escalade |
| "L" | AWD Astro & Safari |
| "M" | 2WD Astro & Safari |
| "P" | Forward Control (P42) & Motorhome (P32) |
| "S" | 2WD Blazer, Envoy, Jimmy, Sonoma & S10 Pickup |
| "T" | 4WD Blazer, Bravada, Envoy, Jimmy, Sonoma & S10 Pickup |
| "U" | Montana, Silhouette & Venture |
| (1) Vehicle series is fifth character of VIN. |
| (1) | Vehicle series is fifth character of VIN. |
INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This article may be used for quick reference when you are familiar with proper adjustment procedures and only need a specification.
BATTERY SPECIFICATIONS
| Series | Cold Crank Amps @ 0°F (-18°C) | Reserve Capacity (Minutes) |
|---|
| "C" & "K" | 600 | 115 |
| 690 | 115 |
| 770 | 115 |
| "E" & "J" | (1) | (1) |
| "G" | 600 | 115 |
| 690 | 115 |
| "L" & "M" | 600 | 115 |
| "P" | 500 | 125 |
| 550 | 130 |
| 600 | 115 |
| 690 | 115 |
| 750 | 160 |
| 1075 | 200 |
| "S" & "T" | 525 | 90 |
| 690 | 90 |
| "U" | 600 | 115 |
| (1) Information is not available from manufacturer. |
| (1) | Information is not available from manufacturer. |
ENGINE OIL CAPACITY
| Application | (2) Quantity Qts. (L) |
|---|
| 1.6L | 4.4 (4.2) |
| 2.0L | 5.5 (5.2) |
| 2.2L, 3.4L & 4.3L | 4.5 (4.3) |
| 4.8L, 5.3L & 6.0L | 6.0 (5.7) |
| 5.0L & 5.7L | 5.0 (4.8) |
| 6.5L | 8.0 (7.6) |
| 7.4L | 7.0 (6.5) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes oil filter capacity. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (2) | Includes oil filter capacity. |
FLUID CAPACITY (CRANKCASE) (1)
COOLING SYSTEM FLUID CAPACITY
| Application | (2) Quantity Qts. (L) |
|---|
| 1.6L | 5.8 (5.5) |
| 2.0L | 6.9 (6.5) |
| 2.2L | 11.5 (11.0) |
| 3.4L |
| Standard |
| With Front A/C Only | 9.5 (9.1) |
| With Front & Rear A/C | 12.1 (11.6) |
| Heavy-Duty |
| With Front A/C Only | 10.5 (10.1) |
| With Front & Rear A/C | 13.2 (12.6) |
| 4.3L |
| "G" Series |
| With Rear Heater | 14.0 (13.2) |
| Without Rear Heater | 11.0 (10.4) |
| "L" & "M" Series |
| With Rear Heater | 16.5 (15.6) |
| Without Rear Heater | 13.5 (12.8) |
| "S" & "T" Series | 12.1 (11.5) |
| "P" Series (P42) | 13.8 (13.1) |
| 4.8L |
| Automatic Transmission | 13.4 (12.7) |
| Manual Transmission | 13.7 (13.0) |
| 5.0L |
| "C" & "K" Series |
| With A/C | 18.0 (17.0) |
| Without A/C | 17.5 (16.6) |
| "G" Series |
| With Rear Heater | 20.0 (18.9) |
| Without Rear Heater | 17.0 (16.0) |
| 5.3L |
| With A/C | 14.9 (14.1) |
| Without A/C | 13.4 (12.7) |
| 5.7L |
| "C" & "K" Series |
| Standard |
| With A/C | 20.0 (18.9) |
| Without A/C | 17.5 (16.6) |
| Heavy-Duty |
| With A/C | 27.0 (25.5) |
| Without A/C | 26.5 (25.0) |
| "G" Series |
| With Rear Heater | 20.0 (18.9) |
| Without Rear Heater | 17.0 (16.0) |
| "P" Series (P42) | 15.5 (14.6) |
| 6.0L |
| Automatic Transmission |
| With Optional Oil Cooler | 14.4 (13.6) |
| Without Optional Oil Cooler | 14.8 (14.0) |
| Manual Transmission |
| With Optional Oil Cooler | 14.8 (14.0) |
| Without Optional Oil Cooler | 15.2 (14.4) |
| 6.5L |
| "C" & "K" Series | 27.5 (26.0) |
| "G" Series |
| With Rear Heater | 23.5 (22.2) |
| Without Rear Heater | 27.5 (26.0) |
| "P" Series (P42) |
| Turbo | 24.7 (23.4) |
| Non-Turbo | 25.0 (23.5) |
| 7.4L |
| "C" & "K" Series |
| Standard |
| With A/C | 27.5 (26.0) |
| Without A/C | 25.0 (23.5) |
| Heavy-Duty |
| With A/C | 28.5 (27.0) |
| Without A/C | 26.5 (25.0) |
| "G" Series |
| With Rear Heater | 26.0 (24.6) |
| Without Rear Heater | 23.0 (21.8) |
| "P" Series (P42) | 22.5 (21.2) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes heater. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
FLUID CAPACITY (COOLING SYSTEM) (1)
AUTOMATIC TRANSMISSION FLUID CAPACITY
| Application | (2) Quantity Qts. (L) |
|---|
| 2.0L (03-72LE) | 2.7 (2.5) |
| 2.2L, 4.8L & 5.0L (4L60-E) | 5.0 (4.7) |
| 3.4L (4T65-E) | 8.0 (7.5) |
| 4.3L, 5.3L & 5.7L |
| 4L60-E | 5.0 (4.7) |
| 4L80-E | 7.7 (7.3) |
| 6.0L & 6.5L & 7.4L (4L80-E) | 7.7 (7.3) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark with Dexron-III. (2) Drain and refill capacity only. Does not include torque converter, unless specified otherwise. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark with Dexron-III. |
| (2) | Drain and refill capacity only. Does not include torque converter, unless specified otherwise. |
FLUID CAPACITY (AUTOMATIC TRANSMISSION) (1)
MANUAL TRANSMISSION FLUID CAPACITY
| Application | Quantity Qts. (L) |
|---|
| 1.6L & 2.0L (MM5) |
| 2WD | (2) 2.0 (1.9) |
| 4WD | (2) 1.6 (1.5) |
| 2.2L (NVG 1500) | (3) 2.9 (2.7) |
| 4.3L, 4.8L & 5.0L (NVG 3500) | (4) 2.1 (2.0) |
| 5.3L & 5.7L |
| NVG 3500 | (4) 2.1 (2.0) |
| NVG 4500 | (2) 4.0 (3.8) |
| 6.0L, 6.5L & 7.4L (NVG 4500) | (2) 4.0 (3.8) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) 75W-90 GL4 Synthetic Lubricant (GM 12346190). (3) Synchromesh Transmission Fluid (GM 12377916). (4) Synchromesh Transmission Fluid (GM 12345349). |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (2) | 75W-90 GL4 Synthetic Lubricant (GM 12346190). |
| (3) | Synchromesh Transmission Fluid (GM 12377916). |
| (4) | Synchromesh Transmission Fluid (GM 12345349). |
FLUID CAPACITY (MANUAL TRANSMISSION) (1)
SERVICE INTERVALS & SPECIFICATIONS
| Component | Interval (Miles) |
|---|
| "C", "K", "L", "M", "S" & "T" Series |
| Accessory Drive Belt | (1) 60,000 |
| Air Filter | 30,000 |
| Engine Coolant | 150,000 |
| Fuel Filter | 30,000 |
| Oil & Filter | (2) 7500 |
| Spark Plugs | 100,000 |
| "E" & "J" Series |
| Accessory Drive Belt | (1) 30,000 |
| Air Filter | 30,000 |
| Engine Coolant | 30,000 |
| Fuel Filter | 30,000 |
| Oil & Filter | 7500 |
| Spark Plugs | 30,000 |
| "G" & "P" Series |
| Accessory Drive Belt | (1) 60,000 |
| Air Filter | 30,000 |
| Engine Coolant | 150,000 |
| Fuel Filter | (3) 30,000 |
| Oil & Filter | (2) 7500 |
| Spark Plugs | 100,000 |
| "U" Series |
| Accessory Drive Belt | (1) 60,000 |
| Air Filter | 30,000 |
| Engine Coolant | 150,000 |
| Fuel Filter | (4) |
| Oil & Filter | 7500 |
| Spark Plugs | 100,000 |
| (1) Inspect and replace as necessary. (2) On diesel engines, change every 5000 miles. (3) Replace every 60,000 miles on diesel engines. (4) No scheduled replacement interval is given by manufacturer. Check and replace as necessary. |
| (1) | Inspect and replace as necessary. |
| (2) | On diesel engines, change every 5000 miles. |
| (3) | Replace every 60,000 miles on diesel engines. |
| (4) | No scheduled replacement interval is given by manufacturer. Check and replace as necessary. |
BELT TENSION
| Application | (1) Belt Deflection |
|---|
| 1.6L |
| A/C Compressor & Power Steering Pump | .27-.35" (7-9 mm) |
| Generator/Water Pump |
| New Belt | .20-.27" (5-7 mm) |
| Used Belt (2) | .24-.32" (6-8 mm) |
| 2.0L |
| Accessory Drive Belt | (3) |
| Cooling Fan |
| New Belt | .16-.20" (4-5 mm) |
| Used Belt (2) | .20-.27" (5-7 mm) |
| All Others (Serpentine Belt) | (3) |
| (1) Deflection is with 22 lbs. (10 kg) pressure applied midway on longest belt run. (2) Used belt is a belt in operation for more than 5 minutes. (3) Adjustment of serpentine belt is not necessary. Belt tension is maintained by spring-tensioned idler pulley (some equipped with belt wear indicator). |
| (1) | Deflection is with 22 lbs. (10 kg) pressure applied midway on longest belt run. |
| (2) | Used belt is a belt in operation for more than 5 minutes. |
| (3) | Adjustment of serpentine belt is not necessary. Belt tension is maintained by spring-tensioned idler pulley (some equipped with belt wear indicator). |
ENGINE COMPRESSION
| Application | Specification |
|---|
| Normal Compression Pressure |
| 1.6L & 2.0L | 199 psi (14.0 kg/cm 2 ) |
| 2.2L, 3.4L, 4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L & 7.4L | (1) |
| 6.5L | (2) |
| Minimum Compression Pressure |
| 1.6 & 2.0L | 170 psi (12.0 kg/cm 2 ) |
| 2.2L, 3.4L, 4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L & 7.4L | (1) |
| 6.5L | (2) |
| (1) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (7 kg/cm 2 ). (2) Lowest compression reading should not be less than 80 percent of highest compression reading. No cylinder compression reading should be less than 370 psi (27 kg/cm 2 ). |
| (1) | Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (7 kg/cm 2 ). |
| (2) | Lowest compression reading should not be less than 80 percent of highest compression reading. No cylinder compression reading should be less than 370 psi (27 kg/cm 2 ). |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
| Application | In. (mm) |
|---|
| 1.6L |
| Intake |
| Cold | .005-.007 (.13-.17) |
| Hot | .007-.008 (.17-.21) |
| Exhaust |
| Cold | .009-.011 (.23-.28) |
| Hot | .011-.013 (.28-.32) |
| All Others | (1) |
| (1) Equipped with hydraulic lifters. Adjustment is not required. |
| (1) | Equipped with hydraulic lifters. Adjustment is not required. |
VALVE CLEARANCE SPECIFICATIONS
IGNITION COIL
| Application | Ohms |
|---|
| 1.6L, 2.0L, 2.2L & 3.4L | (1) |
| 4.3L, 5.0L, 5.7L & 7.4L |
| Primary | 0.1 |
| Secondary | 5000-25,000 |
| 4.8L, 5.3L & 6.0L (Delphi Coils) |
| Ground Circuit (2) | 0-10,000 |
| Secondary | 3000-7000 |
| (1) Information is not available from manufacturer. (2) Measure resistance between ignition coil terminal "A" and ignition coil mounting bracket. See appropriate wiring diagram in WIRING DIAGRAMS article. |
| (1) | Information is not available from manufacturer. |
| (2) | Measure resistance between ignition coil terminal "A" and ignition coil mounting bracket. See appropriate wiring diagram in WIRING DIAGRAMS article. |
HIGH TENSION WIRE RESISTANCE
| Application | Ohms |
|---|
| 1.6L & 2.0L | (1) |
| 3.4L | 7000 Maximum |
| All Others | 30,000 Maximum |
| (1) Information is not available from manufacturer. |
| (1) | Information is not available from manufacturer. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Type | Part No. |
|---|
| 1.6L & 2.0L | Denso | K20PR-U11 |
| NGK | BKR6E-11 |
| 2.2L | AC | 41-948 |
| 3.4L | AC | 41-940 |
| 4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L & 7.4L | AC | 41-932 |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| 1.6L & 2.0L | .039-.043 (1.0-1.1) | 18 (25) |
| 2.2L | .050 (1.27) | 13 (17) |
| 3.4L | .060 (1.52) | 20 (27) |
| 4.3L |
| VIN W | .060 (1.52) | (1) 11 (15) |
| VIN X | .045 (1.14) | (1) 11 (15) |
| 4.8L, 5.0L, 5.3L, 5.7L & 6.0L | .060 (1.52) | (1) 11 (15) |
| 7.4L | .060 (1.52) | (1) 15 (20) |
| (1) Tighten spark plugs to 22 ft. lbs. (30 N.m) when using NEW iron cylinder head. Tighten spark plugs to 15 ft. lbs. (20 N.m) when using NEW aluminum cylinder head. |
| (1) | Tighten spark plugs to 22 ft. lbs. (30 N.m) when using NEW iron cylinder head. Tighten spark plugs to 15 ft. lbs. (20 N.m) when using NEW aluminum cylinder head. |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
Note. For firing order, see appropriate illustration.
Scheme 1
Scheme 1: Firing Order (1.6L, 2.0L & 2.2L)
Scheme 2
Scheme 2: Firing Order (3.4L)
Scheme 3
Scheme 3: Firing Order (4.3L)
Scheme 4
Scheme 4: Firing Order (4.8L, 5.3L, 6.0L & 6.5L Diesel)
Scheme 5
Scheme 5: Firing Order (5.0L, 5.7L & 7.4L)
IGNITION TIMING (GASOLINE)
All models are equipped with an electronic computer-controlled ignition system. Timing on this system is adjustable on Tracker equipped with 2.0L engine. Timing adjustment procedure and specification is not available from manufacturer.
INJECTION PUMP TIMING (DIESEL)
Injection pump timing can be checked using scan tool. See DIESEL INJECTION PUMP TIMING table. See appropriate ON-VEHICLE ADJUSTMENTS article for adjustment procedure.
| Application | RPM | Degrees BTDC |
|---|
| 6.5L | Idle | 3.5 |
DIESEL INJECTION PUMP TIMING
FUEL PUMP
| Application | Psi (kg/cm 2 ) |
|---|
| 1.6L | (1) 36-43 (2.5-3.0) |
| 2.0L | (2) |
| 2.2L & 3.4L | 41-47 (2.9-3.3) |
| 4.3L, 5.0L & 5.7L | 60-66 (4.2-4.6) |
| 4.8L, 5.3L, 6.0L & 7.4L | 55-62 (4.0-4.4) |
| (1) Pressure should maintain at least 26 psi (1.8 kg/cm 2 ) for one minute after fuel pump is turned off. (2) Information is not available from manufacturer. |
| (1) | Pressure should maintain at least 26 psi (1.8 kg/cm 2 ) for one minute after fuel pump is turned off. |
| (2) | Information is not available from manufacturer. |
INJECTOR RESISTANCE
| Application | Ohms |
|---|
| 1.6L | 13-16 |
| 2.0L | (2) |
| 2.2L | 2.0-2.3 |
| 3.4L | 11.4-12.6 |
| 4.8L, 5.3L & 6.0L | 11.8-12.6 |
| All Others | (3) |
| (1) Injector resistance specification is at 50-95°F (10-35°C). (2) Information is not available from manufacturer. (3) Resistance values are not available from manufacturer. To check fuel injectors, perform appropriate injector test. See FUEL SYSTEM in appropriate SYSTEM & COMPONENT TESTING article. |
| (1) | Injector resistance specification is at 50-95°F (10-35°C). |
| (2) | Information is not available from manufacturer. |
| (3) | Resistance values are not available from manufacturer. To check fuel injectors, perform appropriate injector test. See FUEL SYSTEM in appropriate SYSTEM & COMPONENT TESTING article. |
INJECTOR RESISTANCE SPECIFICATIONS (1)
IDLE SPEED & MIXTURE (GASOLINE)
Idle mixture on fuel injected models is controlled by PCM and is not adjustable. Controlled idle speed and IAC count can be checked using scan tool. See CONTROLLED IDLE SPEED & IAC COUNT table. For controlled idle speed adjustment procedures, see appropriate ON-VEHICLE ADJUSTMENTS article.
| Application | Idle RPM | IAC Counts |
|---|
| 1.6L | 725-775 | (1) 17-30 |
| 2.0L | (2) | (2) |
| 2.2L | (2) | 5-60 |
| 3.4L | (2) | 10-40 |
| 4.3L, 4.8L, 5.3L & 6.0L | (2) | Varies |
| 5.0L & 5.7L | 650 | Varies |
| 7.4L | 650 | 60 |
| (1) Specification is duty cycle percentage. (2) Information is not available from manufacturer. |
| (1) | Specification is duty cycle percentage. |
| (2) | Information is not available from manufacturer. |
CONTROLLED IDLE SPEED & IAC COUNT
IDLE SPEED (6.5L DIESEL)
Idle speed is adjustable on 6.5L diesel (L57) only. L57 engine uses mechanical fuel injection. All others use electronic fuel injection in which PCM controls all fuel delivery modes based on inputs from AAP, ECT and BARO sensors. Adjust idle speed on L57 engine by turning low idle speed screw on injection pump to curb idle speed specification shown on emission control information label.
THROTTLE POSITION (TP) SENSOR
Note. On 6.5L diesel engines, throttle control is electronic with NO mechanical link from engine to accelerator pedal. The PCM monitors the position of accelerator pedal based on signals from a nonadjustable Accelerator Pedal Position (APP) module. The APP module is mounted above the accelerator pedal.
| Application | Voltage |
|---|
| 1.6L | .50-.80 |
| 2.0L | (2) |
| 2.2L | .20-.90 |
| 3.4L | .20-.74 |
| 4.3L | .47 |
| 4.8L, 5.3L & 6.0L | .40-.90 |
| 5.0L & 5.7L | .51 |
| 7.4L | .47 |
| (1) Specification is with engine idling (throttle closed) at normal operating temperature. (2) Information is not available from manufacturer. |
| (1) | Specification is with engine idling (throttle closed) at normal operating temperature. |
| (2) | Information is not available from manufacturer. |
THROTTLE POSITION (TP) SENSOR VOLTAGE (1)
