Question about 1998 Oldsmobile LSS

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Number 6 cylinder misfire

What would I check for or replace if the number 6 cylinder misfire comes up on my scaner

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That has to be either a bad plug in the number six cylinger, or a bad spark plug wire. First hook the scanner up and erase the code, then turn it back off. Check both ends of the spark plug wire and if they look okay, make sure they are firmly hooked back up.
Hook up the scanner and start the engine. If the code comes back, I would replace the plug at first, then hook your scanner up before the engine is running and erase the code. Then start the engine. If it comes back, then you know the spark plug wire is the culprit.

Note. If you erase the code and it doesn't come right back, don't be elated. It may take driving it a bit before it comes on again.

Sirwriter

Posted on Jun 19, 2009

  • mikelamberto Apr 05, 2011

    what happens if you replace the plugs and the wires and still get the same alarm code. could it be the coil pack

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Where cylinder #6 inengine?,Ford Escape 2002,6cyl

Posted on Sep 30, 2009

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hey thanks for bringing me up to speed. ive been working on many other problems but with your great explanation i remember.
we need to check the compression on that cyl. and compare it to the compression on 2 other cylinders your choice.
but before you do this get a can of carb cleaner . and with the car idling spray around the intake manifold in the area of #6 cyl. what we are looking for is a small vacuum leak that would also act like this. with the engine idling and spraying around the intake the engines idle sould not change and if it does when you spray you have an intake leaking.
let me know how it turns out.
later
paul

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