Warranty - Emission Parts Coverage
Group Ref.: Warranty AdministrationBulletin No.: 470501
Date: June, 1994
WARRANTY ADMINISTRATION
SUBJECT:
EMISSION WARRANTY PARTS COVERAGE
MODELS:
ALL PASSENGER CARS AND LIGHT DUTY TRUCKS
EMISSIONS WARRANTY APPLICATIONS
The emissions systems and parts covered by the Federal and California Emissions Warranties are printed in warranty books and the GM Service Policies and Procedures Manual. Because of complexity and differences in the parts covered by the two emissions warranties, not all emission warranted parts have been printed under the systems headings in the owner warranty books. The complete Emissions Warranted Parts Listing is published in Article 1.2 of the GM Service Policies and Procedures Manual (see list).
Anytime there is a question concerning emissions warranty application, dealer/retailer personnel are to refer to the Emissions Warranted Part List in the GM Service Policies & Procedures Manual for the model year of the vehicle involved. After review of the GM Service Policies and Procedures Manual, if there is still a question, contact your appropriate divisional personnel for clarification.
Differences in the emissions warranted parts under Federal and California Emissions Warranties have been eliminated. Future editions of warranty and owner assistance information books will be revised to reflect the complete emissions warranted parts list.
EMISSIONS-WARRANTED PARTS LIST AS PUBLISHED IN THE 1994 SERVICE POLICIES AND PROCEDURES MANUAL FOR LIGHT-DUTY VEHICLES
(This list is provided to assist service personnel with identifying parts that should be covered by the emissions warranties. If there are emissions-related parts that are not on this list, please contact your District Manager Service for guidance or refer to the applicable service policy and procedures manual for the model year vehicle involved.)
(*) Designates 7/70,000 coverage on vehicles equipped with the California emissions option only.
1. Engine Control System
Barometric Pressure Sensor
Camshaft Position Sensor
Coolant Fan Control Relay
Coolant Level Sensor
Crankshaft Position Sensor
Data Link Connector
Engine Control Module
Engine Coolant Temp. Sensor
Fast Idle Solenoid
Flexible Fuel Sensor
Intake Air Temperature Sensor
Malfunction Indicator Lamp
Manifold Absolute Pressure Sensor
Manifold Differential Pressure Sensor
Mass Air Flow Sensor (*)
On-Board Diagnostic System
Oxygen Sensors
Park/Neutral Position Switch
Powertrain Control Module
Programmable Read Only Memory PROM
Thermal Vacuum Valves
Throttle Position Sensor
Throttle Position Switch
Torque Converter Clutch Switch
Torque Converter Clutch Solenoid Valve
Transmission Speed Sensors
Vacuum Sensor (*)
Vehicle Control Module Vehicle Speed Sensor
2. Fuel Management System Altitude Fuel Limiter (Diesels)
Central Port Injector Assembly
Diesel Fuel Injection Pump
Diesel Fuel Inj. Pump Timing Adj.
Flexible Fuel Control Module
Fuel Injection Nozzles
Fuel lnjectors
Fuel Pressure Regulator Fuel Rail (*)
Glow Plugs (Diesels)
3. Air Management System Air Cleaner (*)
Air Cleaner Diaphragm Motor
Air Cleaner Resonator
Air Cleaner Temp. Compensator Valve
Air Intake Ducts
Charge Air Control Components
Charge Air Control Actuator
Charge Air Control Solenoid Valve
Charge Air Control Valve
Charge Air Cooler
Charge Air Cooler Fan
Engine Air Heat Stove
Idle Air Control Motor
Idle Air Control Valve
Idle Speed Control Motor Intake Manifold (*)
Intake Manifold Tuning Valve
Intake Manifold Tuning Valve Relay Supercharger (*)
Supercharger Bypass Valve Actuator Supercharger Bypass Valve
Thermal Vacuum Valve
Throttle Body (*)
Throttle Body Heater Throttle Closing Dashpot
Turbocharger (*)
Turbocharger Oil Separator
Turbocharger Thermo Purge Switch
4. Ignition System Distributor (*)
Distributor Cap
Distributor Ignition Control module
Distributor Pick Up Coil Distributor Rotor
Ignition Coil
Ignition Control Module Ignition Timing Adjustment
Knock Sensor System
Knock Sensor System Override Sw.
Knock Sensors
Spark Plug Wires
Spark Plug (only up to first specified replacement interval)
5. Catalytic Converter System Catalytic Converters
Exhaust Manifold (*)
Exhaust pipes between converters and exhaust manifold
6. Positive Crankcase Ventilation System Crankcase Depression Regulator Valve (Diesels)
Oil Filler Cap PCV Filter
PCV Oil Separator
PCV Valve
7. Exhaust Gas Recirculation System EGR Control Valves
EGR Passages
EGR Temperature Sensor
EGR Thermal Vacuum Valve EGR Valve
EGR Valve & Exhaust Press. Reg. Solenoid Valve (Diesels)
SEGR Valve Relay
Exhaust Backpressure Transducer
Exhaust Pressure Regulator Valve and Actuator (Diesels)
8. Secondary Air Injection System Bypass Valve
Catalytic Converter Secondary Air Injection Check Valve
Catalytic Converter Air Suction Valve (Prizm) Check Valves
Deceleration Valve
Pump
Pump Belt
Switching Valves
Vacuum Delay Valve
9. Evaporator Emission Control System (Gasoline Engines)
Canister
Canister Control Valve
Canister Purge Solenoid Valve
Canister Purge Thermal Vacuum Valve
Fuel Feed and Return Pipes & Hoses Fuel Filler Cap
Fuel Tank Flr Pipe with restrictor
Fuel Tank Pressure Control Valve
Fuel Tanks (*)
10. Miscellaneous Items Used In Above Systems
Actuators Pipes
Belts Pulleys
Clamps Relays
Connectors Sealing Devices
Ducts Sensors
Fittings Springs
Gaskets Switches
Grommets Tubes
Hoses Valves
Housings Wiring
Mounting Hardware