one of our Fords just died out, we did a Scan and cam and crank sensor codes came up. both where replaced after all esle was checked still not firing after new ones installed ...any suggestions?
Try going back to basics. Gas or diesel? What year? This info would help. Did you check for fuel? Not in the tank, in the engine. Is it getting spark? Does it need spark?
I am assuming (dangerous thing to do) since you tagged your post with F350 Diesel, that you have the IH 7.2L engine.
My experience with this engine is the scanner will not pick up glow plug problems. Find and read the service manual on testing and replacement of the glow plugs. Please note, replacement of glow plugs requires the purchase and use of a special tool supplied only by Ford or IH.
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If you don't have time to do it right the first time, when are you going to have time to do it over?
Well It looks like I have missed an important piece of the puzzle needed for diagnosing. Now that ALL of us know it is a diesel, we can narrow the list of problems. The computers can only read problems that it has any control over. The glow plugs have way too much current to be switched by the computer. There is a glow plug controller, but it is fairly reliable. The glow plug controller uses an internal sensor to determine how long to allow power to go to the flow plugs. That is the clue to glow plug condition. If the glow plugs are heating properly, the controller will keep them on full length of time. If the glow plugs have failed, and no longer are heating up, the controller will turn them off quicker. This is hard to notice when only one or two glow plugs have failed. But if all or most of them are not heating, you will see the shorter "on" time for the glow plugs.
Another way to test the glow plugs is to disconnect the wire from each of the glow plugs. Use an ohm meter to test the resistance between the connection terminal of the glow plug, and ground. If there are any plugs that have an open circuit, they have failed and need to be replaced. I ran an older 6.9 version that I had advanced the injection timing on for some additional low speed power. It was prone to loose the glow plugs every other year.
I was able to get mine out with a deep 7/16" shin wall six point socket. I do not know how hard the later electronic controlled injectors are to change. I hope this helps. Let us know.
hard to start Ford F350
Re: hard to start Ford F350
