1995 Monte Coolent Prob

[timmy2500]

my buddy has a 1995 monte 3.1 radiator hose was popping off and i replaced that then bled the system still over heats any suggestions???

[tela4422]

does the heat work? If not, he may not have suffient coolant levels in the radiator. Add coolant is this is the case. If not, is there a blown head gasket? That can cause a car to overheat. Or the thermostat. Its the cheapest fix I think.

[timmy2500]

ok i guess i try the thermostat first then go from there thanks, thanks.

[timmy2500]

Originally Posted by tela4422

does the heat work? If not, he may not have suffient coolant levels in the radiator. Add coolant is this is the case. If not, is there a blown head gasket? That can cause a car to overheat. Or the thermostat. Its the cheapest fix I think.

heat was working untill the hose popped off now it does not

[RahX]

try swapping out the thermostat since its cheap and somewhat easy to do. anyway those 3.1s can trap air like you wouldnt believe. what i usually do is this. warm the car up at an idle until it reaches operating temp then hold the throtttle at about 1200-1300 rpm. when it starts to get hot rev it up to about 2200-2400 and let off till it comes back down to 1500ish and rev it back up to 2200-2400 and repeat several times. you should be surging the engine like youre getting ready for a badass takeoff, in park . thats how it should sound anyway. what youre doing is working the cooling system to try and purge the air since the high spots are hard to work the air out of. after you do this warm it up as high as it will go without overheating and shut it down and walk away. let it cool down for 30-45 mins and check the overflow. fill it back up tot he hot line and do it again. hope this helps. i know when i do anythign to the cooling system on those bastids 9/10 i have to do this to get the air out even after i opened the bleeders and whatnot.

[growe58]

I've had some luck bleeding the system by filling it up, completely removing the bleeder valves and putting a garden hose into the radiator filler. I turn on the hose and use the pressure to force coolant backwards until you get a little "fountain" coming out the bleeder valve. Usually the one on the passenger side squirts first. I close it and then do the other side. You have to be careful not to overly dilute your antifreeze, but it doesn't really take much water, just enough to remove the air bubble.

Oh yeah, the car needs to be warmed up so that the thermostat is open or this won't work.

How far did you buddy drive the car overheating? Any chance some additional damage (I'm thinking head gasket) was done?