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SportTrac Discussion
Engine & Drivetrain
If your 4.0 SOHC timing chain rattles...
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<blockquote data-quote="Dean Hedin" data-source="post: 1030135" data-attributes="member: 57230"><p>If your chain only rattles on start-up and then goes away once it warms up...</p><p></p><p></p><p></p><p>Then you should change the tensioners as described in the link (watch parts one and two)</p><p></p><p></p><p></p><p>One thing the presenter fails to mention is that you must pump up the new tensioners with oil </p><p></p><p>before installing them. Place them in a dish of oil and keep cycling them until it becomes hard to push the plunger. </p><p></p><p></p><p></p><p>The rear is easy to install but the front is more of a challenge.</p><p></p><p></p><p></p><p>Mine started rattling over the winter (2003 with 105k). Replaced yesterday and all is good. I used the aftermarket tensioners on ebay (about $17 each) Motorcraft ones are about $80 set.</p><p></p><p></p><p></p><p>If your chain rattle does not go away after warm-up I would still attempt this solution, but I would have less expectation of a remedy.</p><p></p><p></p><p></p><p>Apparently these need to be changed every 75k miles.</p></blockquote><p></p>
[QUOTE="Dean Hedin, post: 1030135, member: 57230"] If your chain only rattles on start-up and then goes away once it warms up... Then you should change the tensioners as described in the link (watch parts one and two) One thing the presenter fails to mention is that you must pump up the new tensioners with oil before installing them. Place them in a dish of oil and keep cycling them until it becomes hard to push the plunger. The rear is easy to install but the front is more of a challenge. Mine started rattling over the winter (2003 with 105k). Replaced yesterday and all is good. I used the aftermarket tensioners on ebay (about $17 each) Motorcraft ones are about $80 set. If your chain rattle does not go away after warm-up I would still attempt this solution, but I would have less expectation of a remedy. Apparently these need to be changed every 75k miles. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
If your 4.0 SOHC timing chain rattles...
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