Since it is currently an intermittant problem, your cheapest route is to flush the coolant system and replace the T-stat with a factory one, don't bother using the cheap aftermarket ones. If the over heating prob continues you should have the radiator rotted out.


More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed