my 2000 4cyl ideals rough

Asked by Jan 22, 2013 at 12:31 PM about the 2000 Ford Contour 4 Dr SE Sedan

Question type: Maintenance & Repair

my neighbor hooked up the computer and it said number 4 cylinder misfired. we have changed the plugs, wires and lifter gasket. could it be the coil pack or something else.

2 Answers

97,135

It could be a bad injector. Either an open coil or the nozzle plugged. Remove the electrical connector and read the ohms across the coil - it should be around 12 ohms and steady. If it is a lot higher and rising, the coil is open. If you replace the injector, use a new O ring on the fuel rail unless you like doing the job twice.

Thank you

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