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Clanking noise when off

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Hi All,


Long time lurker first time poster here.


My 2011 Edge has around 87k miles on it and recently had to replace the PTU at 80K miles. I was quite unhappy with that and ever since this car has put me on "edge."


1) I hear a clanking noise after I drive the car and the car is turned off from the engine. It sort of like expanding and contracting noise of metal. I figured the engine is hot and its cooling, but its quite loud? Is it a cause for concern?

2) I started having a musty smell from the car, its been there, but I had the cabin filter and air filter replaced recently....not sure what that can be? I hope its not the PTU leaking again!


thanks for your help!

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Probably a heat shield somewhere and not the engine itself. No concern unless it gets worse.


Musty smell would either be a leak from the A/C condenser or moonroof drain clogged or mold in the A/C plumbing. Not the PTU. Do you notice it when using the A/C, the heater or both?

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