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2001 Ford F-150 with 4.2 liter engine with 194500 miles...Service engine soon light is flashing

Misfire on cylinder 3 and excess emissions level on cylinder 4 and combustion too lean bank 2
Vehicle: 2001 Ford F-150 with 4.2 motor
asked Jul 30, 2016 by Laura

1 Answer

When the CK ENG LT flashes this is a misfire condition or a catalytic damaging condition so the CK ENG LT will flash, If there is a misfire on cylinder 3 and 4, this more than likely will be the ignition coil. what happens on the ignition coil 3 and 4 are paired ignition.

Here ignition 3 and 4 are paired. This is the firing order that is for the engine

answered Jul 31, 2016 by Reynaldo (10,835 points)

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