Quote:
Originally Posted by tmaxx445
Not normal! Sounds like your expansion tank cap isn't allowing the system to vent the vacuum pressure generated during thermal contraction as the car cools off. Try another cap and I bet the problem will go away.
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I'll toss the old cap on and watch it for a few days and see what happens.
Quote:
Originally Posted by Fifty150hs
you should see coolant bubbling from the bleeder if there is air in the system. You should not get coolant coming out of the expansion tank other than a little spray possibly as the secondary pumps coolant back into the top of the tank near the top. It can splash out sometimes. You can pop the cap and open the bleeder right after you turn the car on and crank the heat full hot (90 degrees). Putting on the heat full opens the valves to the heater cores and allows any air in there to escape also.
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Attempted to bleed the system again today. Removed cap and loosened bleeder screw. Ran with heat all the way on high. It burped once or twice every 10-20 seconds. Let it run for 6 minutes.
Here's a video (after about 4 min of running) - note the burps around 10 and 30 seconds in.
Is that what it should be doing? Should I let it run longer (it never stopped doing this bubble every 10+ seconds)?