Question about 1992 Buick LeSabre

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I need the spark plug sequence for a 1995 Buick Riviera

The more detailed, the better. They are for my sister who "accidentally" pulled off the wires.

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Is this the 3.8 litre V6? If so the firing sequence is 1-6-5-4-3-2. The diagram here (see link) illustrates the sequence with No 1 cylinder being nearest to the front of the vehicle.

Posted on Jun 22, 2009


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How to change the spark plugs

You need a special spark plug socket for your socket wrench.

Put a piece of tape on each spark plug wire, marking them so you can remember where to replace them. Mixing them up is pretty awful.

For me, it's difficult to pull off the spark plug wires. I do it with pliers, rocking slightly as I pull. Sometimes I need something like a hammer handle to pry against. So far in my life only one broken clip has resulted.

Then you unscrew the plugs. Access is not too bad on the 92 Riviera.

Gap the new plugs to .060 inch. (1/16 inch would be .0625) You need some sort of gauge to do that accurately. I think it's better to err on the small side, rather than wider.

Screw in the new plugs. Tighten quite tight. Clip on the wires again. And you are ready to go.

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