FYI: this is all in a Chilton's/Haynes manual 15-20 bucks at all automotive stores. disconnect the battery. wait a few min for the residual energy to disapate. take off the plastic around the steering columb. should only be 3-4 screws on the underside. place the key in the ignition and turn to the "run" position. look up into the underside of the columb. on the left hand side is the ignition switch and to the right is the ignition cylinder. on the switch you will see a TORX screw. undo the screw (no 10, i think). the switch should be removable now--there may be another screw, i can't remember. anyway, remove the switch. it can easily be replaced just like it came out. but make sure it is in the exact same way it came out. the cylinder notches into the switch in only one direction. you may have to play with it. i did. Note: when you turn the key it turns a spring-loaded mechanism inside the switch and activates certain contacts. i.e. start-run-stop-acc. the cylinder can only be removed if the key is in, and in the "run" position. it will just pull out. once you pull it out, you can remove the key and examine it for damage/wear. if it's bad, it's usually expensive to replace (here in Hawaii it's nearly 200bucks) install in reverse order hope this helps, David Dub Tek Motor Werks,Hawaii
The ignition switch is immediately behind and attached to the ignition lock cylinder. The ignition lock cylinder is where you place the key to start your vehicle. If you are haveing problems with your vehicle not starting and or turning the key, more than likely you need to replace the ignition lock cylinder. It is common for these to go bad in GM vehicles.
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn ringsFaulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn ringsFaulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn ringsFaulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn ringsFaulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another.Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
Faulty: spark plug, spark plug wire, ignition coil, ignition module, fuel injector are the most common. Coolant leaking into a cylinder is another. Internal engine problems such as burnt valve, broken valve spring, bent push rod, worn rings
most cylinder misses are caused by a bad ignition wire if they are 5yrs or 60,000 old they should have been changed,same with spark plugs, other problems with buick ignition system is they have 1 coil that feeds two cylinders they are known to fail also. sometimes one cylinder fails and some fail on both cylinders.if you have a constant miss try changing coil after cetrifiying plug and wires are good. the ignition modules are known to fail by not giving spark signal to coils.you can put new wires and plugs if miss is still there change the cyl with # 3 on it they come cheap now. I you need module that can run you about 250..