E30 m20

[e30m20TurbO7]

So my car got hot the other day because the water pump failed and starting spewing out water out of the weep hole I think there exhaust fumes getting in the coolant. Blown headgasket? I had some smoke come out of the exhaust for like 20 seconds then it went away.
No oil in coolant nor coolant in oil.
Lower rad hose in cold? I tested thermostat and I replaced the water pump, but still can't get the system bled. I believe I'm somehow getting only exhaust fumes in coolant

[mpowerful]

It is possibly to get exhaust blowing into coolant passages but no oil going back the other way. Id fill the system well and pressure test it and see what happens.

[jlevie]

If the engine suffered a serious overheat (gauge into the red) the chances of damage to the head gasket are pretty high. A sign of that is trouble bleeding the system with air constantly being released. These engines aren't hard to bleed if you do:

1) Using ramps or a jack get the front of the car 1' or more higher than
the rear. That will make the radiator and bleed screw the highest point
on the engine and facilitate removal of air.

2) With the bleed screw open, add coolant until no more air comes out of
the bleed.

3) Leave the filler cap off, or at least loose, and set the heat for max
temp and fan speed. Leaving the cap loose will prevent air that's still
in the system from causing a "coolant fountain" once the engine heats
up. Start the engine and allow it to warm up to operating temp. As it
warms up occasionally crack the bleed screw to release any air and top
up the coolant as necessary.

4) Once the engine is at temp bring it up to 2000-2500rpm for a few seconds
several times. Then crack the bleed until no more air is released. At
this point the heater should be throwing lots of hot air, which
indicates that the heater core is filled with coolant. You may have to
repeat this a few times to get all the air out.

5) Drive the car a bit, allow it to cool back down, and recheck the
bleed for air. Over the next few days you may get very small amounts (a
few bubbles) of air out of the bleed screw.

[e30m20TurbO7]

I found a air leak on the throttle body coolant hoses. The gasket is letting air bubbles out and I can't get the car to blow hot air consistently. . The car won't bleed constantly have air bubbles
The system is over pressurizing I think exhaust vapors Are getting in to the cooling system which won't let the car bleed. The rad won't get hot not will my heater blow got air consistently

[dwight]

Check your thermostat