Question about 1998 Buick LeSabre

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I have put a Nemesis on my 1998 Buick Lesabre and it shows trouble code for "engine misfire" all my coils are firing, so what else could the problem be.....The engine has a miss to it but all the plugs are getting fire.....Someone help me please!!!!!!!!!!

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Chris, these cars are notorious for misfires.
The coils may be firing but often they will leak the spark off a cracked tower or internally.
Also check each spark plug carefully for carbon tracks on the outside of the porcelain insulator.
These carbon tracks are caused by repeated ignition sparks traveling down the outside of the spark plug. This is what I see most of the time on these cars.
If you see this, replace the plug that is tracked and the ignition wire as well.
Use di-electric grease on the inside of the new wires to help prevent tracking on the new wires.

This advise should lead you to repairing your misfire.
Thank you for using FixYa.


Posted on Nov 09, 2010

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Firing order for a 1998 Buick Lesabre

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Firing order of sparkplugs

#6 Firing Order>>> 1 6 5 4 3 2
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This is the Whole Set up Coil Pack numbered on coil IF OE
I Hope this Helps and if so PLEASE RATE ME Accordingly
Thank You Very Much

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