radiator
#4
my coolant looked the same when I bought it, looked like mud, I flashed out the entire system and put Prestone 50/50, I know GM says to use DEX Cool but ive have a few friends tell me Dex cool blew head gaskets, and this was told to them by a machine shop. Ive never had a problem using prestone 50/50.
#8
houston, just flush the system, what I did was grab a garden hose, popped off the lower rad hose, removed thermostat and removed the rad plug, i ran water through the top of the rad until it was clear, then ran water through where the thermostat sat until it ran clear out the bottom rad hose.. and dont forget to remove the reserv and clean that out too.
Once I did that, put everything back together, put almost 3 gallons of Prestone 50/50, and dont forget to release the steam from the valve on top of the thermostat housing, or else you will be over heating and causing damage, keep your eye on the temp gauge make sure it does go past normal temp.
My coolant looks nice and fresh been more then a week now. Hope this helps
Once I did that, put everything back together, put almost 3 gallons of Prestone 50/50, and dont forget to release the steam from the valve on top of the thermostat housing, or else you will be over heating and causing damage, keep your eye on the temp gauge make sure it does go past normal temp.
My coolant looks nice and fresh been more then a week now. Hope this helps
Last edited by ChevyManCam; 12-05-2010 at 08:50 PM.
#10
I just made this horrible mistake, felt like total dumba** when it turned brown. I live in MN and currently I can't run a garden hose through mine, Im not driving it, will it hurt it to leave it until spring? If it will I will take it to local shop and have them flush it good for me.