How to Replace the Coil Pack on a 1988 Chevrolet Cavalier

The 1988 Chevrolet Cavalier comes with several engines, including the 2.0-, 2.8- and 3.1-liter engines, all of which use the same process for replacing the coil pack. On the 3.1-liter engine, the "idle learn" procedure must be completed, using a Tech 1 scan tool, after the coil pack has been replaced, so a shop with access to the appropriate scan tool should be used to service the coil packs. The other engines do not require an idle learn procedure, and the coil pack can be replaced by anyone.

Tools Used: Set of wrenches, Set of sockets, Tape, Marker

Replace Coil Pack

Disconnect the negative battery cable, then lay it aside, ensuring that it does not touch metal. Mark the spark plug wires so that you know where they go when you put them back on. Pull the spark plug wires off the coil pack.

Unplug the electrical wiring harness connector from the coil. Remove the mounting bolts, using the appropriate socket, then remove the coil pack from the engine.

Place the new coil pack on the engine and install the mounting bolts. Tighten the bolts to 19 ft.-lbs. of torque on the 2.8-liter engine, and 89 in.-lbs. of torque on the 2.0- and 3.1-liter engines.

Reconnect the plug wires by snapping them into place. Reattach the wiring harness connector. Reconnect the negative battery cable.

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