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take it out and shoot it! no seriously take out the thermostat and shoot it. see if she stays cool w/o it if you need the truck to get around in until you can figure it out. if it's still getting warm and the systems clean and you've done all those things everyone else has mentioned... well.. here's a funny story...
I had one that had stop leak in it when we bought it and we didn't' discover it till three years later (yeah yeah we didn't mess with it if it didn't have a problem but my dad's not the brightest crayon in the box and he was all i had to learn from till i found these wonderful FTE guys) and it locked the thermostat, blew the freeze plugs out, cracked the heater core and getting it home pouring water in it and driving it till it started warming up and pouring more cold water in it (told you dad wasn't a genius) cracked the head. all that happened and no one thought to check the waterpump when it STILL continued to overheat.... (it didn't have a heating problem till the day it blew the freeze plugs) apparently all the flushing etc that was done when the freeze plugs were replaced (the head didn't make itself apparent for another 7 or 8 months) cleaned all the gunk off the waterpump that had been sorta in place of the rotted thingies that make the water move on the pump and it wasn't pushing water hardly at all.
moral of the story, if the systems been cleaned up (the hoses and rad and cap and everything these guys have already said) and something is still not right, and noone thinks to mention it, check your water pump.... and if necessary, take it out... and shoot it too.
Do you have a coolant pressure tester? Hook one up and watch the pressure guage with the truck running. The guage should climb pretty quickly past the 14lb normal range after the engine is warmed up. The combustion gasses will create excessive pressure/heat in the system and cause it to overheat. You might try a new Tstat and fan clutch first.
I've seen bad heads/gaskets fail and not produce any bubbles.
I doubt it's the head gasket...since you said the coolant wasn't bubbling. My guess is ignition timing, clogged radiator, weak water pump, collapsed hoses, missing fan shroud, etc.
Did I miss something or have you not checed or tested the thermostat? If it does not open you got no flow and it can't cool the engine. Just a thought. Easy to check.
all the hoses are clean and my thermostat was rusted and cracked so i bought a new one and it didnt come with the right adapter for the thermometer thingy so i need to look around for one that will fit it then figure out how to rig it up because it wasnt hooked up in the first place....
all the hoses are clean and my thermostat was rusted and cracked so i bought a new one and it didnt come with the right adapter for the thermometer thingy so i need to look around for one that will fit it then figure out how to rig it up because it wasnt hooked up in the first place....
Thermometer thingy? Do you mean you need a sending unit for the temp guage? There shouldnt be any kind of adapter for thermostat. It sits inside a housing.
so i burped it again and a ton of bubbles were coming out, then i turned off the truck... my rad turned into a fountain... and that was like... after 10 min of idle
The only other way I know to fill the coolant system is to remove the T-stat and fill the rad until coolant barely comes out the T-stat port..then install the T-stat & housing and fill the rad to 1" below the sealing ring.
Leave cap OFF ..Start the truck and run it up to normal operating temp while observing the coolant in the rad for flow.