my 2000 4cyl ideals rough
Asked by AnninStockton 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
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.