Start-up rattle - oil filter leak down??

Our fj does this with only the Toyota filters. Odd, but they are bone dry if it sits all night. Switched to the orange can and no rattles. Does the rattle hurt anything?
Good question that I don't have an answer for. Right now I'm using a Fram Ultra that it doesn't rattle with. I've used Tough Guard that rattled and Toyota filters that some do and some don't. What you can do Chris is try cycling the key a couple of times but not too fast, it has worked for me with a noisy filter and control valve. It may eliminate the noise on startup but your filter will probably be dry still. It also of course depends on filter orientation.
 
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