Question about coolant flush [Archive] - Forum


View Full Version : Question about coolant flush

11-05-2006, 09:16 AM
I searched and couldnt find exactly what Im looking for. Im going to flush my coolant cause I keep overheating, which I thought was my 180* tstat but there was like tiny little gunk in it. I put my stock back in but it still overheats.

Well I went and got a new stock tstat and super flush, but is it necessary that I have to drain the rad or can I just drain from lower coolant hoses and then flush it out? I couldnt find the drain plug on the rad and I looked where its supposed to be.

And this may be dumb but should I just keep the tstat in there during the flush, then put the new one in and fill the coolant?

11-05-2006, 07:05 PM
i see you got a 99? you know if the coolant has ever been flushed or anything?...because dexcool starts to become corrosive/acidic when its not changed out after a while and starts to eat the propeller on the waterpump...just an idea, that could be one of your problems....i would guess that you can have a pressure test hooked up to see if your waterpump output is ok...anyone else have any input?

11-05-2006, 11:53 PM
Idk, but Ive been adding regular green coolant for a while now. I flusheed it and changed my tstat but Im still overheating. WTF????

11-06-2006, 12:31 AM
is there pressure in your hoses?

11-06-2006, 02:26 PM
I bled my cooling system cause I think there may have been an air bubble in it. It seemed ok when I drove it but Im gonna let it cool off then drive it to see if its ok.

11-06-2006, 02:29 PM
That could be it, a bubble in the system

11-06-2006, 03:31 PM
Yep, runnin around 200-205 now which is what I should be at with a stock tstat.

11-06-2006, 04:47 PM
well then congrats, glad that there wont be one less GT on the road

11-06-2006, 05:12 PM
Thanks man lol, thought I was gonna have to take her in the shop which Ive never done and dont want to. I wanna keep it and dwon the road get a new motor,paint,and redo the suspension. Shes got 131k and Im still modding