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Need help identifying this noise (Videos Attached)
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<blockquote data-quote="fordfreek" data-source="post: 1714523" data-attributes="member: 13302"><p>I recently had problems similar to yours and it ended up that the passenger's side iwe leaked vacuum and allowed dirt inside the lines and caused the check valve to fail. Repeatedly. Dealership replaced all the vacuum lines from the solenoid to the iwe's, as well as both iwe's. So far I've had no more problems. Mine would make the same noises yours is making under low manifold vacuum/boost conditions. I teed in a vacuum gauge on the iwe side of the solenoid to monitor vacuum under load to verify it was losing vacuum. I replaced several check valves and as soon as they got dirt in them they would fail. Like within 10 miles. I cut open the old check valves to find them contaminated with dirt.</p></blockquote><p></p>
[QUOTE="fordfreek, post: 1714523, member: 13302"] I recently had problems similar to yours and it ended up that the passenger's side iwe leaked vacuum and allowed dirt inside the lines and caused the check valve to fail. Repeatedly. Dealership replaced all the vacuum lines from the solenoid to the iwe's, as well as both iwe's. So far I've had no more problems. Mine would make the same noises yours is making under low manifold vacuum/boost conditions. I teed in a vacuum gauge on the iwe side of the solenoid to monitor vacuum under load to verify it was losing vacuum. I replaced several check valves and as soon as they got dirt in them they would fail. Like within 10 miles. I cut open the old check valves to find them contaminated with dirt. [/QUOTE]
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