Question about 2002 Mercury Sable
PO301 & PO 303 are cylinder misfire in the cyclinders
indicated by the codes last number #1 & #3
Spark Plugs get replaced every 3 years or so & have
nothing to do with resolving any misfire issues, unless
they were in the motor for 80,000 miles & worn out
Spark Plug wire easily last 12 to 15 years or more &
usually only fail because they are mishanded & too often
You problem IF the codes are correct & they are not all the
time,is a bad ignition module or individual coil if that is
what you have
Posted on Jan 21, 2013
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Posted on Jan 02, 2017
IIRC these are a coil over design. meaning the coil is over the plug. the coil should have one 8mm bolt holding it on the lower intake manifold. remove the coild to get to the spark plugs. look by the fuel injectors, coil should be just next to it or very close. coil usually says motorcraft on it and circle in design.
Posted on Feb 09, 2009
There are also two serpentine belt types for the 2002 sable. The S and U type engine. Take the old belt with you the the parts store. As for the diagram, I googled it under images and about a dozen correct ones came up. Remember the 2002 sable is the same as the 2002 Tarus.
Posted on May 02, 2009
Barring any vacuum leaks, P0401 is indicative of a bad EGR valve. Hope this answers your question. Best of luck.
Posted on May 30, 2009
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Feb 14, 2015 | 2003 Mercury Sable
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Feb 27, 2012 | 2000 Mercury Sable
P0305 is misfire in cylinder #5.
P0306 is misfire in cylinder#6.
P0316 is misfire on start up.
Have the plugs on those 2 cylinders, and the 2 fuel injectors checked, also check for spark from the coil on those 2 plug wires.
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