I got the shakes

[SilverZero]

Ever since I played in the mud puddle @ slaughterhouse, when I turn my AC on my fan makes my whole truck shake. I am thinking I just need to wash all the mud off the belts, but is there anything I should watch out for. I have heard a lot of conflicting stories. Anyone rinsed down their engine without a problem?

[Reserector]

All the time. I use a residential (Pronounced "cheap") pressure washer. I adjust it to a fan spray and avoid connectors and oil seals.
Wet it down, spray it with Castrol Super Clean, wait a minute, then blast it clean.

[nissandoms47]

Im not too familiar with the new xterras but is there an aux fan like on the older ones? You could have possibly broken some of the blades off. I did this on my efan on my pathfinder after going through a puddle and it made the whole vehicle shake too.

[DamnHippie]

I wash out my engine bay after most every wheeling trip (because I'm not sure I've ever seen a muddle puddle that I could make myself drive around rather than through).

I just use a regular hose with my thumb over the end (so that I get good volume, sprayer ends choke the flow off to a couple gallons a minute). After getting big chunks of mud out, I spray everything with Simple Green diluted 20:1 or so, let that soak for 5 minutes, then spray it out again. Works great.