Question about 2000 Buick Regal

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I have 2000 Buick Regal GS. Check engine light blinks above 70 MPH. Changes Plugs, wires, and swapped coil packs and also dumped injector cleaner in the tank last time i filled up. wondering what to check next???

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Replace the ignition control module. Autozone part number is DR145. It cost $100 and install time is about 30 min. Located underneath the coil packs. this will fix ur problem.

Posted on Feb 18, 2013

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The code should be read with a scanner, when check engine blinks, not a good sign

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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To test it, swap the coil pack with another cylinder, and see if the misfire goes from #2 to the cylinder you put it on.

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ok since you said you changed the plug and coil pack, start with the injector wire harness and look it over for any shorts or grounds, also make sure the terminals on the no.2 injector connector aren't loose. if you have access to a noid light you can check to make sure the injector is pulsing. check the no.2 plug wire as well. swap it with another wire if you can and see if the miss follows the plug wire. if those fail to solve your problem and the misfire remains on the no.2 cyl, try swapping an injector. if that also fails then you may have a problem with the cyl head.

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