When I turn on defrost and electric fan comes on, it isn't the usual jet plane sound. Looked at it and it's got a major wobble.
Didn't look like it's on there with a nut either.
Any usual fix for this?

 

Bearing is worn out in the motor. Just replace the whole unit. Not that expensive. The one with the red heart in the link below is the one that's most popular:
https://www.rockauto.com/en/catalog/...+assembly,2181

 

I would use one of the other ones . The type of fan blade they have should pull more air .

 

Don't know about that but the one I posted won't work on my '96. Connector doesn't match. Three of the other four that show the connector will though. Best check before you buy one.

 

Whenever I order one probably going with the Continental.

 

Just got back to this. The one with the heart is apparently no longer in their inventory.
When I had mine out changing the alternator (way easier to deal with the belt with that fan out), I was wondering about rebuilding the fan. Discovered today there are just motor units available to do that. The Continental has unterminated wires for using the existing connector.
https://www.rockauto.com/en/moreinfo...0314&jsn=10403

 

You do you, but for $10 more you can get the upgraded 97+ fan.

 

How did they upgrade the fan?

 

10 blades and they were shaped differently.

 

A little quieter and less drag/ more efficient moves more air for the same power draw or same air with less draw.

 

Yep. Just swap the connector. Easy.

 

Search for best price...they are all fairly inexpensive... I just put one in mine a couple months ago... think I paid like 50 bucks shipped... fit with very little modification....and working like a champ so far.