PLEASE NOTE:--The Procedure is Similar for Chevrolet Uplander, Pontiac Montana
Ignition Coil Module
REMOVAL & INSTALLATION Details are as follows:-------
3.5L Engine
Before servicing the vehicle, refer to the Precautions Section.
Disconnect the brake booster vacuum hose from the intake manifold.
Note the position of the spark plug wires for the installation and disconnect the spark plug wires from the ignition coil and module assembly.
Remove the 4 screws securing the ignition coil and module assembly to the bracket.
Remove the ignition coil and module assembly.
To install:
Install the ignition coil and module assembly to the bracket.
Install the ignition coil and module assembly screws and tighten to 40 inch lbs. (4.5 Nm).
Connect the spark plug wires as noted during the removal.
Connect the brake booster vacuum hose to the intake manifold.
3.9L Engine
Before servicing the vehicle, refer to the Precautions Section.
Remove the intake manifold cover.
Disconnect the brake booster vacuum hose from the intake manifold.
Disconnect the manifold absolute pressure (MAP) sensor electrical connector.
Disconnect the ignition coil electrical connector.
Disconnect the left side spark plug wires from the ignition coil.
Disconnect the right side spark plug wires from the ignition coil.
Remove the upper left coil mount bracket bolt.
Raise and safely support the vehicle.
Disconnect the wire retainers on the ignition coil bracket.
Remove the remaining bolt and two nuts on the coil bracket.
Lower the vehicle.
Remove the ignition coil bracket assembly.
To install:
Install the ignition coil.
Raise and safely support the vehicle.
Install the upper right coil mount bolt.
Install the coil mount nuts and tighten to 15 ft. lbs. (20 Nm).
Lower the vehicle.
Install the upper left coil mount bolt and tighten to 15 ft. lbs. (20 Nm).
Connect the right and left side spark plug wires to the ignition coil.
Connect the ignition coil electrical connector.
Connect the MAP sensor electrical connector.
Connect the brake booster to the intake manifold.
Install the intake manifold cover.
These details will help.
Thanks.
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