codes what good are they

MERCURY MARQUIS
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PMYHAL
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I am having trouble with my 2001 Grand Marquis no codes a sligth stumble (miss) between 50 and 55 mph as I am sligthly acclerating .

No codes are recored.

At this point what do you do drive the car until I get a hard code?

Wait untill it gets worse ?

Go to shop hope they will fix the car rigth the first time ?




any advise here ?
May 30, 2007 at 11:17 AM
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2CARPRO JACK
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6 yrs and 63k... Id roll a set of Motorcraft plugs in it just to see if it fixes the problem. Wouldnt use anything but OEM plugs, regardless of cost
May 31, 2007 at 8:04 AM