Question about 2005 Ford F-150
I have changed the plugs and still getting a mis-fire reading on 5 and 7.
Hi my name is Allen, the first thing you need to do when you have a misfire is check compression for the cylinder that is misfiring with a compression gauge. The answer to your question posted on the forum. You need to check first to see if the computer is doing its job, here is how! Unplug the suspected injector and with a test light or noid light check at the connector with the engine running, if the light pulsates off and on, then the computer is operational. But before removing and checking the spray pattern of the injector, be sure the problem its not mechanical by checking the compression as I stated above. For further asistance you may contact me through FixYa.
Posted on Dec 27, 2008
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Posted on Jan 02, 2017
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