Hey guys!! I have enjoyed all the info that I have managed to collect in this forum,so before I begin, I want to thank all for this forum,and the infor it contains. Now to my current issue .... I just recently bought myself a used 1994 4X4 Ranger XLT ( 4.0 cu),and am really enjoying it... but as is usual for something this old, it needs a little TLC ... the heat hand in this unit keeps ranging from normal,all the way up to too hot, then back to normal. I have flushed the system really well, changed out the thermostat,and radiator cap to no avail, The engine begins very normal and as you drive down the road it runs in the normal range, then it'll begin to head up the heat scale pretty quick until it gets out of the normal range to hot .... then it'll just head back to normal ,and stay there a mile or two, then back up. I am planning on looking at the clutch fan next ... the plastic fan has several cracks, so I am hoping I can find one of those too ....I would really welcome any advice that any of you guys ( or gals!) could offer... maybe ya'll have run into this very thing too ? Thanks !