INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with proper adjustment procedures and only need a specification.
CAPACITIES
| Application | (2) Quantity - Qts. (L) |
|---|
| All Models | 4.5 (4.3) |
| (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)
| CAUTION | DO NOT use cooling system seal tabs, or similar compounds, unless otherwise instructed. The use of cooling system seal tabs, or similar compounds, may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly. |
| Application | (2) Quantity - Qts. (L) |
|---|
| Except Park Avenue | 10.0 (9.5) |
| Park Avenue | 13 (12.3) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. Use 50/50 mixture of clean, drinkable water and use only DEX-COOL(R) Coolant. (2) Includes heater. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. Use 50/50 mixture of clean, drinkable water and use only DEX-COOL(R) Coolant. |
FLUID CAPACITY (COOLING SYSTEM) (1)
| Application | (2) Quantity - Qts. (L) |
|---|
| Bottom Pan Removal | 7.4 (7.0) |
| Complete Overhaul | 10.0 (9.5) |
| Dry | 13.4 (12.7) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Unless otherwise specified, use Dexron-III transmission fluid. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (2) | Unless otherwise specified, use Dexron-III transmission fluid. |
FLUID CAPACITY (AUTOMATIC TRANSAXLE) (1)
| Application | (1) Quantity - Pts. (L) |
|---|
| Pump Only | 1 (0.5) |
| Complete System | 1.5 (0.7) |
| (1) Use GM Power Steering Fluid (GM P/N 1052884 or Canada P/N 993294), or equivalent. |
| (1) | Use GM Power Steering Fluid (GM P/N 1052884 or Canada P/N 993294), or equivalent. |
FLUID CAPACITY (POWER STEERING)
SERVICE INTERVALS & SPECIFICATIONS
| Component | Miles |
|---|
| Air Filter | (1) 30,000 |
| Accessory Drive Belt | (2) |
| Automatic Transaxle Fluid | (3) |
| Engine Coolant (4) | (5) |
| Fuel Filter | (6) |
| Oil & Filter | (7) |
| Spark Plugs | 100,000 |
| Supercharger Oil | (8) |
| (1) Inspect every 15,000 miles. (2) Check and replace as necessary. (3) Under normal service conditions, replace at 100,000 miles. If used under severe service conditions, replace every 50,000 miles. (4) Use only DEX-COOL(R) coolant or equivalent silicate-free coolant. (5) Replace at 60 months or 150,000 miles, whichever occurs first. (6) There is no service interval for fuel filter replacement. Only replace the fuel filter if the filter is restricted. Inspect the fuel tank internally and clean the fuel tank if you find a restricted fuel filter. Periodic replacement is not required. (7) Replace as indicated by oil life monitor or every 12 months, whichever occurs first. (8) Check every 30,000 miles or every 36 months, whichever occurs first. Use Supercharger Oil (GM P/N 12345982 or Canada P/N 10953513). |
| (1) | Inspect every 15,000 miles. |
| (2) | Check and replace as necessary. |
| (3) | Under normal service conditions, replace at 100,000 miles. If used under severe service conditions, replace every 50,000 miles. |
| (4) | Use only DEX-COOL(R) coolant or equivalent silicate-free coolant. |
| (5) | Replace at 60 months or 150,000 miles, whichever occurs first. |
| (6) | There is no service interval for fuel filter replacement. Only replace the fuel filter if the filter is restricted. Inspect the fuel tank internally and clean the fuel tank if you find a restricted fuel filter. Periodic replacement is not required. |
| (7) | Replace as indicated by oil life monitor or every 12 months, whichever occurs first. |
| (8) | Check every 30,000 miles or every 36 months, whichever occurs first. Use Supercharger Oil (GM P/N 12345982 or Canada P/N 10953513). |
BELT TENSION
Adjustment of serpentine belt is not necessary. Belt tension is maintained by spring-tensioned idler pulley (some equipped with belt wear indicator).
ENGINE COMPRESSION
Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Normal Compression Pressure | (1) |
| Minimum Compression Pressure | (1) |
| (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 (690 kPa). |
| (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 (690 kPa). |
ENGINE COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
All models are equipped with hydraulic lifters. Adjustment is not required.
HIGH TENSION WIRE RESISTANCE
| Application | Specification - Ohms |
|---|
| Except Police | 3000 Per Ft. |
| Police | 600 Per Ft. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Spark Plug Type | Spark Plug No. |
|---|
| All Models | AC | 41-921 |
| Application | Gap - In. (mm) | Torque - Ft. Lbs. (N.m) |
|---|
| All Models | .060 (1.52) | 11 (15) |
SPARK PLUG SPECIFICATIONS
FIRING ORDER
Note. For firing order, refer to illustration. (Scheme 1)
Scheme 1
IGNITION TIMING
Note. All models are equipped with an electronic computer-controlled ignition system. Timing is not adjustable.
FUEL PUMP
| Application | (1) KOEO - psi (kPa) |
|---|
| All Models | 53-59 (365-407) |
| (1) KOEO is ignition key ON and engine OFF. |
| (1) | KOEO is ignition key ON and engine OFF. |
INJECTOR RESISTANCE
| Application | (1) Ohms |
|---|
| All Models | 11.0-14.0 |
| (1) Injector resistance specification is at 50-90°F (10-32°C). |
| (1) | Injector resistance specification is at 50-90°F (10-32°C). |
INJECTOR RESISTANCE SPECIFICATIONS
IDLE SPEED & MIXTURE
Note. Idle mixture is controlled by Powertrain Control Module (PCM). Idle speed is preset by manufacturer and is not adjustable.
THROTTLE POSITION (TP) SENSOR
Note. TP sensor is not adjustable. For further testing procedures, perform TP sensor related diagnostic test. See appropriate SELF-DIAGNOSTICS article.
| Application | (1) Volts |
|---|
| All Models | (2) |
| (1) Range is from idle to wide open throttle. (2) The scan tool range is 0-100 percent. TP angle is computed by the PCM from the TP sensor voltage. TP angle should display 0 percent at idle and 100 percent at wide open throttle. The scan tool voltage range is 0-5 volts. The voltage being monitored by the PCM on the TP sensor signal circuit. |
| (1) | Range is from idle to wide open throttle. |
| (2) | The scan tool range is 0-100 percent. TP angle is computed by the PCM from the TP sensor voltage. TP angle should display 0 percent at idle and 100 percent at wide open throttle. The scan tool voltage range is 0-5 volts. The voltage being monitored by the PCM on the TP sensor signal circuit. |
TP SENSOR ADJUSTMENT VOLTAGE
