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SportTrac Discussion
Engine & Drivetrain
2003 Sp Trac Intermittent Starting Problems
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<blockquote data-quote="Sorin W" data-source="post: 1018228" data-attributes="member: 70336"><p>it's clearly a temperature related issue, my trac (2001 with 340,000 miles) has this issue as well and after digging I found this article:</p><p></p><p></p><p></p><p>"Magnetic crankshaft position sensors are fairly simple and reliable, but the internal windings can sometimes open and kill the crank signal if the sensor gets too hot. If the engine has a magnetic crank sensor, you can test it with an ohmmeter to see if the resistance is within specifications. But even if the sensor tests ?good,? it may still cause trouble. We?ve seen certain crank sensors that measure within specifications when tested cold with an ohmmeter, but suddenly go wide open if the sensor gets hotter than 200 to 220? F. One minute it?s working fine producing a good signal, and the next it goes dead and causes the engine to stall. If an overheated crank sensor is causing a stalling problem, the engine may not restart until it sits awhile and the sensor cools down."</p><p></p><p></p><p></p><p>The link has the part (only $14.99 and wires another $6.99) and I'll give it a try myself too</p></blockquote><p></p>
[QUOTE="Sorin W, post: 1018228, member: 70336"] it's clearly a temperature related issue, my trac (2001 with 340,000 miles) has this issue as well and after digging I found this article: "Magnetic crankshaft position sensors are fairly simple and reliable, but the internal windings can sometimes open and kill the crank signal if the sensor gets too hot. If the engine has a magnetic crank sensor, you can test it with an ohmmeter to see if the resistance is within specifications. But even if the sensor tests ?good,? it may still cause trouble. We?ve seen certain crank sensors that measure within specifications when tested cold with an ohmmeter, but suddenly go wide open if the sensor gets hotter than 200 to 220? F. One minute it?s working fine producing a good signal, and the next it goes dead and causes the engine to stall. If an overheated crank sensor is causing a stalling problem, the engine may not restart until it sits awhile and the sensor cools down." The link has the part (only $14.99 and wires another $6.99) and I'll give it a try myself too [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
2003 Sp Trac Intermittent Starting Problems
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