NOISES PROBLEM1999 FORD EXPLORER 6 CYL FOUR ...

1999 Ford Explorer

Tiny

leguleyo3

September, 20, 2008 AT 6:49 PM

Noises problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 150000 miles

troubleshooting P0304 Cylinder misfire detected-cylinder number 4. The powertrain control module monitors the crankshaft speed and has detected a misfire condition.

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1 Answer

Tiny

blackop555

September, 20, 2008 AT 9:35 PM

Switch the plug and wire with another cylinder and clear code, does problem move to the cylinder you switched the plug and wire with? If not check for spark on cylinder #4.

If ignition is all good next step would be to check the fuel injector for pulse on that cylinder, do this by attatching a noid light and cranking the vehicle.

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