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SportTrac Discussion
Engine & Drivetrain
Calling Tyler, XST, Adam, and Others with Mystery Stalling Issue(s)
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<blockquote data-quote="scott degroot" data-source="post: 788911" data-attributes="member: 66039"><p>Ford is the worse there is as far as reporting misfires, however if your mech knows what he is doing he can find misfire information in what is called "mode 6" data that most "good" scan tools have, but again a misfire will not just shut off a vehicle when it happens so I would rule out the plugs and wires also. The 2 main and most important inputs that these engines have is the crank sensor and the cam sensor. The crank sensor tells the pcm which cylinder is which adn basically the position of #1 cylinder and then everything is timed off of this. When this sensor goes bad you can be driving along adn it will act as if somebody just shut the key off or if it starts to "glitch" can cause stumbling and stalling and then all of a sudden act ok...kind of like your description.</p></blockquote><p></p>
[QUOTE="scott degroot, post: 788911, member: 66039"] Ford is the worse there is as far as reporting misfires, however if your mech knows what he is doing he can find misfire information in what is called "mode 6" data that most "good" scan tools have, but again a misfire will not just shut off a vehicle when it happens so I would rule out the plugs and wires also. The 2 main and most important inputs that these engines have is the crank sensor and the cam sensor. The crank sensor tells the pcm which cylinder is which adn basically the position of #1 cylinder and then everything is timed off of this. When this sensor goes bad you can be driving along adn it will act as if somebody just shut the key off or if it starts to "glitch" can cause stumbling and stalling and then all of a sudden act ok...kind of like your description. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Calling Tyler, XST, Adam, and Others with Mystery Stalling Issue(s)
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