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Old 07-19-2005, 09:42   #1 (permalink)
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'01 Grand Marquis LS repair questions.....

Hi, new to the forum! I'm a mechanic but I'm not that familiar with Ford products so I have a few questions. My son recently bought an '01 V8 Grand Marquis LS and the check engine light stays on all the time. Are there any common causes that can easily be checked or ruled out? When doing a tune up, do the coils just bolt off to change the plugs? Is there anything more to doing a tune up than changing the plugs, wires, PCV and filters? Thanks
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Old 07-19-2005, 16:08   #2 (permalink)
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Re: '01 Grand Marquis LS repair questions.....

As far as a tune up goes, thats all there is to it
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Old 09-03-2005, 19:06   #3 (permalink)
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Re: '01 Grand Marquis LS repair questions.....

Quote:
Originally Posted by Quadsteer
Hi, new to the forum! I'm a mechanic but I'm not that familiar with Ford products so I have a few questions. My son recently bought an '01 V8 Grand Marquis LS and the check engine light stays on all the time. Are there any common causes that can easily be checked or ruled out? When doing a tune up, do the coils just bolt off to change the plugs? Is there anything more to doing a tune up than changing the plugs, wires, PCV and filters? Thanks
Remove the bolt and gently twist the COP to release the boot from the plug. Use comressed air to clean out the plug well prior to removing plugs. Aluminum head -- change plugs stone cold. I use antiseize sparingly and reduce torque a little.

If you don't have a scanner, go to Autozone and get a free scan. Don't take their advice. Come back and report the code and we'll go from there. I recommend Motorcraft stock components if you don't wnat to introduce problems. Rockauto has decent prices.
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