Originally Posted by mossyoak03
for the thermostat flow your upper radiator hose at the end of the hose that goes to the engine is your thermostat take that hose off and there it is
you got it close.....
follow your upper radiator hose to the engine block. There is 3 bolts that holds the thermostat housing on the block (10mm i believe).
Since you have to drain some of the antifreeze to replace the thermostat, might as well do a complete flush of the cooling system while you are at it.
- 3/8" drive ratchet
- 3/8" 10mm socket (don't me to it, but I believe it is this size)
- 3" 3/8" extention
- 3/8" swival socket (not necessary, but makes it easier)
- 5 gallon bucket (to drain anti-freeze)
- new thermostat
- 2 gallon anti-freeze (3-4 if you are doing a complete flush and fill)
Steps to Replace:
Drain the anti-freeze out of the radiator (this will keep anti-freeze from pouring out the thermostat when you remove it)
Remove the intake from the throttle body and lay it out of the way.
Take the tention off the drive belt so you can get to all the bolts.
Remove those 3 bolts and pop the seal on the housing (no need to remove the hose from the housing).
Pop the thermostat out of the block, put a new one in the same way.
Re-install the housing and the 3 bolts; do NOT over tighten the housing bolts.
Install the drive belt back on the pullies.
Fill the radiator up with anti-freeze. If you are doing a complete flush, now is the time to do the flush.
Install the intake tube back on the throttle body making sure that all the plugs and vacuum hoses are still attached to the intake tube.
Start the truck. Let it warm up to temperature. When it comes up to temperature, shut the truck off let it cool down.
Remove the radiator cap and top off the radiator