Ignition Control Module Replacement ICM

Tools Required

J 36011 Spark Plug Removal Tool.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.



2. Remove the accelerator and cruise control cables out of the hold down clip.



3. Remove the fuel line retainer clip bolt.



4. Disconnect the Electronic Ignition Control Module (ICM) 11 pin harness electrical connector.



5. Remove the Ignition Coil and the Electronic Ignition Control Module (ICM) assembly to camshaft housing bolts.




Notice: Spark plug boots often adhere to the spark plugs. Use tool J 36011 in order to remove by first twisting and then pulling upward on retainers. Reinstall the boots and the retainers on the ignition coil housing secondary terminals. The boots and the retainers must be in place on the ignition coil housing secondary terminals prior to the ignition coil and the electronic ignition control module assembly installation or ignition control system damage may result.

6. Remove the Ignition Coil and Electronic Ignition Control Module (ICM) assembly from the engine.



7. Remove the housing to cover screws.




Important: When removing the housing from the cover make sure the ground strap stays in place.

8. Disconnect the coil harness electrical connector from the Ignition Control Module.
9. Remove the housing from the cover.



10. Remove the Ignition Control Module to cover screws.



11. Remove the Ignition Control Module from the cover.

Important:  DO NOT wipe grease from the module or coil if the same module is to be replaced. If a new module is to be installed, a package of silicone grease will be included with it. Spread the grease on the metal face of the module and on the cover where the module seats. This grease is necessary for module cooling.

1. Install the Ignition Control Module to the cover.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the Ignition Control Module to cover screws.

Tighten
Tighten the screws to 4 N·m (35 lb in).




3. Install the ground strap (if the ground strap is not already installed).



4. Connect the Ignition Coil(s) electrical connector to the Ignition Control Module.

Important: When installing the housing to the cover make sure the ground strap stays in place.

5. Install the housing to the cover.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Install the housing to cover screws.

Tighten
Tighten the housing to cover screws 4 N·m (35 lb in).




7. Install the spark plug boots and the retainers to the housing (if the spark plug boot and retainer is not already installed).



8. Install the Ignition Coil and Electronic Ignition Control Module assembly to the engine while carefully aligning the spark boots to the spark plug terminals.



9. Install the ignition coil and the electronic ignition control module assembly to camshaft housing bolts after coating the threads with Sealant LOCTITE GM 12346004 or equivalent.

Tighten
Tighten the bolts to 22 N·m (16 lb Ft).

Important: The ICM cover bolts must be installed with isolator washers with the rubber side facing down.




10. Connect the Electronic Ignition Control Module (ICM) 11 pin harness electrical connector.



11. Install the fuel line retainer clip bolt.



12. Install the accelerator and cruise control cables into the hold down clip.
13. Connect the negative battery cable.

Ignition Control Module Replacement Ignition Coil / ICM Assembly

Tools Required

J 36011 Spark Plug Removal Tool.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.



2. Remove the accelerator and cruise control cables out of the hold down clip.



3. Remove the fuel line retainer clip bolt.



4. Disconnect the Electronic Ignition Control Module (ICM) 11 pin harness electrical connector.



5. Remove the Ignition Coil and the Electronic Ignition Control Module (ICM) assembly to camshaft housing bolts.




Notice: Spark plug boots often adhere to the spark plugs. Use tool J 36011 in order to remove by first twisting and then pulling upward on retainers. Reinstall the boots and the retainers on the ignition coil housing secondary terminals. The boots and the retainers must be in place on the ignition coil housing secondary terminals prior to the ignition coil and the electronic ignition control module assembly installation or ignition control system damage may result.

6. Remove the Ignition Coil and Electronic Ignition Control Module (ICM) assembly from the engine.



7. Remove the housing to cover screws.




Important: When removing the housing from the cover make sure the ground strap stays in place.

8. Disconnect the coil harness electrical connector from the Ignition Control Module.
9. Remove the housing from the cover.



10. Remove the Ignition Coil(s) from the housing.



11. Disconnect the Ignition Coil(s) electrical connector.



12. Remove the contact springs from the housing.



13. Remove the Ignition Coil seal(s) from the Ignition Coil(s).

1. Install the Ignition Coil seal(s) into the Ignition Coil(s) (replace with new seals).



2. Install the contact springs into the housing (use petroleum jelly to retain).



3. Connect the Ignition Coil(s) electrical connector.



4. Install the Ignition Coil(s) into the housing.



5. Install the ground strap (if the ground strap is not already installed).



6. Connect the Ignition Coil(s) electrical connector to the Ignition Control Module.

Important: When installing the housing to the cover make sure the ground strap stays in place.

7. Install the housing to the cover.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

8. Install the housing to cover screws.

Tighten
Tighten the housing to cover screws 4 N·m (35 lb in).




9. Install the spark plug boots and the retainers to the housing (if the spark plug boot and retainer is not already installed).



10. Install the Ignition Coil and Electronic Ignition Control Module assembly to the engine while carefully aligning the spark boots to the spark plug terminals.



11. Install the Ignition Coil and the Electronic Ignition Control Module assembly to camshaft housing bolts after coating the threads with Sealant LOCTITE GM 12346004 or equivalent.

Tighten
Tighten the bolts to 22 N·m (16 lb Ft).

Important: The ICM cover bolts must be installed with isolator washers with the rubber side facing down.




12. Connect the Electronic Ignition Control Module (ICM) 11 pin harness electrical connector.



13. Install the fuel line retainer clip bolt.



14. Install the accelerator and cruise control cables into the hold down clip.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

15. Connect the negative battery cable.