Question about Chevrolet Lumina

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Got 3 spark plugs in back of motor whats the fastest way to change them. I have a 3.1 motor

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This is how i changed the plugs in my old 3.1 Lumina. Remove the top motor mounts. Set the parking brake and start the motor. Shift to Reverse. This will tilt the motor forward and allow you some access to the plugs in the back. To get the motor back into position to reattach the mounts, just release the parking brake and the motor shound rock back into position. It may be necessary to shift to drive, though. You might have to jam a metal bar somewhere in between the motor and frame to get it to maintain position. It's been a while since I've done it, so I don't exacly remember where I jammed the bar. But this is still the easiest way I've found of accessing those rear plugs. Hope this helps you out. Best of luck!

Posted on May 24, 2011

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Posted on Jan 02, 2017

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The Power of Balance.


A lot of people post us questions about misfiring motors and how they can be diagnosed. The simplest and fastest way to check a misfire is the "power balance" test. It takes a few minutes and can tell you a lot about what is going on in the motor. Here's how its done. With the motor idling, open the hood and listen to the engine for where the misfire is occurring, if you can't isolate the misfire, then remove the #1 spark plug wire. If the motor idles the same then this is the bad cylinder, If it idles worse then you need to repeat the sequence till you find it.

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