I replaced the thermostat in my 2002 Olds Alero V6.
When I went to bleed the coolant air, I missed a step and want to know
if I did any harm.
Here's what I did. In parantheses is what i skipped.
1. Fill surge tank with coolant to "cold" line
2. Start engine with pressure cap off (My bad: I left it on)
3. Run engine until thermostat opens and upper radiator hose is hot.
4. Open bleed valve and allow air to escape.
5. When bleed valve emits no air, and only a solid stream of coolant,
6. Replace surge tank pressure cap.
I ran the engine for a soild ten minutes, and coolant & air spurted
out of the bleed valve. I never achieved the "solid stream of
coolant". Was this because I had the pressure cap on?
Did I hurt anything?
Right now the car is cooling down. When it is cold again, I will
repeat the process correctly.