bigdaddy87547

i just flushed my cooling system, i was running it with just straight water and the temp gauge red normal. I then turned off the engine, removed the petcock, and drained all of the water out....after refilling it back up with antifreeze and water, she is overheating. The gauge is pointing in the red!
<<< Before the flush, she ran fine, during the flush, she ran fine, after the flush, SHE'S HOT>>>
what the hell happened.

Jay351

Is she getting hot in stop and go, or on the hwy?

How did you flush your system?
Are you using a 50/50 mix of anti freeze/distilled water?

Albert.G

did you burp it? im assuming you didnt, take off the rad cap(when cold) and run your truck till it bout warms up, it should bubble out the air then squeeze the top hose slowly to get the air out, let it cool off for awhile, then repeat

edit. if it fails to help, maybe your thermo stuck itself shut due to only water being in there

FredTJ

Yup, you almost certainly have air in the cooling system.





Fred

Jay351

when burping it also helps to park up a slight incline.

SEAIRESCUE

Replace the thermostat with one that has a small hole in it to prevent an air lock. If air traps at the thermostat the temperature will rise to a superheated condition because the temperature gage is right at the thermostat. So, go to your parts store and get a new thermostat with a bypass hole.

Albert.G

i doubt he wants to go through that trouble, even though i would swap it out, you will be fine with just burping it

bigdaddy87547

it first started in my driveway....then she was in the red
drove 2 miles, 50mph...when she went into the red
when i was adding anti-freeze/water, i did indeed squeeze the upper hose so that it would take in more coolant. was i supposed to do this to the lower hose as well...

bigdaddy87547

is this acceptable....
http://www.autozone.com/selectedZip,.../selectZip.htm

bigdaddy87547

in case you want to know, 95 4runner, 3.0, auto, black, 24 lug nuts, rusted front fenders....etc. lol

Albert.G

i always do, but make sure all the bubbles are gone, if it doesnt change, swap your thermo

bigdaddy87547

i will have to let it cool tonight...i've in the past back when i was young and stupid, opened the cap, while it was hot...........I WILL, I REPEAT, WILL NEVER DO THAT AGAIN!. if i cant get it fixed tonight, i will try in the morning... its always good to have a spare bike around.

davenjai

When it cools, take the cap off and fill it up. Burp it, put a little in the resovoir and cap it. You should be fine

bigdaddy87547

PROBLEM SOLVED! BOY IS IT NICE TO BE APART OF A FORUM WHERE THE PEOPLE ACTUALLY KNOW WHAT THEY ARE TALKING ABOUT. I AM NO MECHANIC BUT I DO LIKE TO KEEP THINGS FROM HAPPENING DOWN THE ROAD.

So far i have to really awsome forums, and one crappy one..
YOTATECH= GREAT=TOYOTA TRUCKS
MIGHTYD50=GREAT-MIGHTY MAX/RAM50.
RANGERPOWERSPORTS=I HATE AS MUCH AS I HATE FORDS.=RANGERS N SUCH

bigdaddy87547

when she cooled down, took the cap off and couldn't see any coolant, so i put in about half a gallon. wow thats a lot. and burp her out. i could only figure when i first put in coolant, it hadnt stayed in the block yet. so the reason for the overheating is air in system/low coolant... I sure hope that didn't do any damage to the engine. wish me luck

Albert.G

nah you should be fine, use to drive my dub in the redISH all the time...lol dont ask