Whether your Pontiac Grand Prix has problems starting, the ignition process could be the poser, mainly whether you discriminate the battery and starter are skilled. The ignition module in a Grand Prix is entangled by reason of the vehivle uses a distributorless step. Still is controlled by the Powertrain Discipline Module, which by oneself an approved Professional can Stare at. The isolated matters you can in fact check are the contingency of the Glimmer plugs and their wires and the resistence on the ignition coils. Any item buckle down to be a occupation needs to be replaced.
Instructions
1. Depressurize the fuel method before testing the ignition module to garner fuel from spraying into the engine. Remove a plug from its wire and replace it with a spark tester, which looks like a spark plug but with an alligator clip endure.4. Clip the tester to an engine ground and crank the engine. A strong blue spark means the wire is working.
2. Remove the spark plugs from the ignition module and inspect them. They need to be clean. The ground electrodes sticking out from the edge should be flat, sharp and positioned directly over the center electrode. Replace or clean them, if needed. Either way requires a trip to the auto parts store because cleaning them requires a special machine.
3. Test the spark plug wires. Disconnect the negative cable from the car battery. Open the electrical fuse box in the car's engine compartment. Remove the fuel injection fuse.
5. Check the resistance on the ignition coils by removing one and connecting an ohmmeter to the terminals on the underside. Remove an ignition coil and connect an ohmmeter to the primary terminals on its underside. The resistance from the primary terminal needs to be between 0.5 and 0.9 ohms. The secondary terminal resistance should be between 5,000 and 8,000 ohms.
