Hey all. I have a question. I went thru some mud this past weekend and got the JK covered in mud pretty good. Went to a car wash after and got her cleaned really good. Now when my temp hit 215 the fan cuts on and the rig starts vibrating. The temp still goes down and when the fan shuts off, it stops vibrating. Any ideas what this cod be? Thanks for the help...

Rock

 

Sounds like the fan is out of balance or damaged. Check it and make sure there isn't a dried glob of mud somewhere on it. Also make sure it hasn't work loose somehow, or is cracked or damaged. Any of those things would cause that.

 

Could be an out of balance fan; mud still on it or a broken part.

Could be the radiator fins still have mud in them. That can cause uneven air flow through the fan.

If the radiator was packed with mud, and you washed it without removing it, there may still be mud between it and the A/C condenser.

 

Thanks for the reply's. I'll get up in there after work and check it out completely and make sure everything is cleaned...

Rock