Question about 2007 Lincoln MKZ
One was burned, another two showed misfire. Changed plugs and three packs, now shop states that I need pcm. What is fair estimate for replacement of that?
Posted by Anonymous on
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Posted on Jan 02, 2017
When cleaning your engine, water/degreaser went down the spark plug ports. Try using a air compressor blow gun to remove the moisture from around the spark plugs and boots. The water was causing the engine to misfire on 3 cylinders at first and as the ports started to evaporate the moisture, the less misfiring was occuring. Dry thouroughly and hopefully coils do not have damage to them. Also check to make sure the boot is making good contact with the spark plug.
Posted on Apr 09, 2009
You've tried everything but getting the timing checked out. You've done all the other parts of a tune-up but that.
When you changed the spark plugs did you notice #7 was especially dirty or greasy, this could point to a seal being broken or a piston ring that needs replacing.
Posted on Jul 07, 2009
check compression, then fuel injector. or vac leak. what kind of scan tool. very few will give live misfire data. you are sure you replaced number 8, drivers side rear?
Posted on Oct 21, 2009
you should either do a compressio test on all of the cylinders or take it and get it scannred for codes to see if the right coils were replaced
Posted on Nov 11, 2010
SOURCE: my 93 towncar runs rough
YOU HAVE INTAKE MANIFOLD LEAK ALSO COULD HAVE BAD OR STICKING INTAKE VALVES. CODE PO 226 IDM SIGNAL NOT RECEIVED AND CODE PO 542 FUEL PUMP SECONDARY CIRCUIT.
Posted on Mar 12, 2011
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