Can someone please tell me where the ignition control module is on a 91 buick regal?

take the negative cable off the battery,unplug the plugs relaled to the ignition module.remove the ignition wire from the coils ;remember where they were removed from so that you don't cross the wires. once that you've done that remove each coil and the ignition module will be cler and available for you to remove the screws that holds the module in place. install the new module, be sure to follow all directions and repeat the removable instruction in reverse to install new module.

It sounds like the ignition control module or the computer. both of these can run fine until they get warm then quit. Autozone and Advance Auto Parts can test the control module for free and tell you if it's good or bad

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Try the ignition control module... QDM stands for quad driver module which is apart of ignition control module. This module is located on top of the engine under the coil cover. Where the wires plug-in, this is the module.

Try the ignition control module... QDM stands for quad driver module which is apart of ignition control module. This module is located on top of the engine under the coil cover. Where the wires plug-in, this is the module.

It suunds like a problem with your electronic ignition module its near the the back of the distributor shaft not hard toreplace but also not that cheap to buy

replace the ignition module,under the coil pack.

Check if the control module is getting current from the ignition switch, and then check the coil.

I have found the most common part failure issue with the ignition system is the crank sensor, also called by some the TDC sensor.

sounds like an ignition module