Where is the thermostat located my van blew a hose last week and again tonight, i am guessing i need to replace thermo

reset what if have a code check into it --then start check list of possible problems -------leak--radiator --water pump--fan--hoses--thermostat--engine damage --head gasket

Put a couple of drops of wd-40 in the locking mechanism. It is probably hanging up. (Dirty)

bad thermostat or bad water pump

I am immediately inclined to think that the thermostat you currently have installed is the wrong one for your van. If it isn't overheating, then the thermo is opening at a hotter level than normal. Either that, or the thermo you have is opening late. If you want an easy test to see if this is the issue, remove the hose that goes to the thermostat, remove the thermostat, put the hose back, fill up whatever water came out and drive it around for awhile and see if it made a difference. If it now seems to open cooler, then the thermo needs to be replaced. If that doesn't work and it still seems the same, I would check the water pump or the belt that goes to it to make sure they are working correctly

fuel filter inline some were

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short in one of the bulb sockets for the backup lights is the most likely cause, water getting into the light is another. the only other thing i can think of is if there is a short in the neutral safety switch.

Need to change the thermostat and check the water pump.Make sure the belts are in good shape to.

hi fallow the top radiator hose to the engine there is the thermo housing

you've got a serious overheating issue creating the pressure. Your temp gauge must be reading hot too.
If not, then you have engine compression pressure getting into the cooling system through a blown head gasket.
Replacing the cap will not help.

Yes it sounds like the thermostat is stuck and needs to be replaced. If you have the 4.0 it is a very easy task. Easy to get to also. Good luck.