Cylinder 1 and 6 misfire

Asked by May 05, 2017 at 08:47 AM about the 2000 Ford Taurus SE

Question type: Maintenance & Repair

I have a 2000 Ford Taurus se 3.0l ohv I replaced
spark plugs, wires, fuel injectors, alternator, coil
pack and after about two three months it has a
misfire on cylinder 1 and 6 so after weeks of trouble
shooting I found 2 vacuum lines that were not
Getting vacuum I traced them back to a egr
pressure regulator I changed it out and got my
vacuum back but I still have the misfires and there
were two more lines not getting vacuum I traced
them to a evap vacuum solenoid I changed it out
and I still have no vacuum
To those two lines and a bad misfire please help
there is nothing left that can be wrong I have fuel
compression and spark the mass air flow sensor is
good I have ran out of options

2 Answers

The only codes I get are cylinder 1 misfire and cyldiner 6 misfire

720

I would be suspicious of a bad coil pack even if it is new. Cylinders #1 and #6 are actually fired (sparked) by the same coil. Your coil pack is a set of three coils and two cylinders get spark in unison even though they are on their power stroke at opposite times. In this case #1 and #6 are getting nothing. So test for spark at the coil pack for those two cylinders. I bet that part of the coil is dead. I hope this helps.

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