The temp climbs to around 215 to 220 degrees and then quickly drops back to about 195 and then climbs back up. Shouldn't a temp of about 195 be maintained since that is what the thermostat is? I recently replace the radiator because it was due and installed a new radiator cap. Could it be the sending unit? As fast as the temp drops, I can't believe it would cool down 25 degrees that fast.
89YJ Sahara, 2" BDS Lift, M.O.R.E. 5/8" Boomerang Shackles, 15"x8" American Racing Baja Wheels, 31x10.5/R15 BFG Mud Terrain KM's, weber, nutter bypass