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- North Carolina - FINALLY !
I really needed these pictures today. I had my truck (923A2) hooked up to tow my deuce to NC. Figured I better get a shakedown out of the way so I took the combo about 5 miles for a fuel-up. Coming back up the hill, started getting hot, up to about 220, with no sign of the fan......Here is the one that wasn't working out of my M936A2. If you are talking the bulb (probe) it ends approx 1&1/2 inches from the base of the main unit. This is an Evans unit.
I figured the shutter-stat was most likely the culprit and took it all apart, and found no real problem. Hmmmmm.
I did notice that the probe was not tightened all the way in (I mistakenly thought it should be ! ) and tightened it all the way in and tightened the locknut. Seemed like it should be good.
When I went to put it all back together is when I found the REAL problem with mine.......the air hoses were switched in was on out, and out was on in. DOH!
Now the new problem was that by tightening in the probe all the way, it sends the unit to "fail-safe" and runs the fan continuously (This is good to know information)
So........back apart it all comes, now that I know the air hoses were wrong, and most likely the problem all along, I decided I better readjust the probe length (which is why I said I really needed these pictures ! )
After filling the cooling system yet again, and getting it hot enough, finally got the fan working as it should.
So, long story short, never assume anything and check everything. Had I noticed the switched air lines, this would have been a 30 second fix.