Help with multimeter settings to manually bleed coolant

I always tell people that the main difference between a professional and a DIY is how long it takes to get a part or tool. A pro will always have everything a few steps away when they get started and a DIY person will have to run an errand or order online mid project.

 

I wasn't there at the time and, therefore, can't say what did cause your dead pumps.

I don't have to have been there to be able to say what didn't cause it; we can rule out any explanation that would require changing how electricity or multimeters work. Whatever does explain your experiences, it won't be that.

If you run into further issues and post in enough detail, it may be possible to pin down what you're seeing.

Getting a wire into the wrong terminals of a socket—different ones than used with the meter—would be one way to see different results. But again, I wasn't there watching you.

 

1. Running it for 15 seconds and wait 1 minute would be fine.

2. Keep coolant in the funnel. If it drains into the system without the pump running that is ok.

3. According to the video, the meter allows you to judge the pump speed.

4. You could write down the steps he used and follow the steps at your own pace.

5. Sparks are ok.

 

There is a drain valve under the CHS, but it is the lowest point in the whole ICE coolant web, so useless for removing air. It works great for draining all the ICE coolant though, and I and at least one other person have refilled the loop back up through that valve.

Refill engine coolant, without trapped air. (unique method) Gen 2 | PriusChat

Oddly, with very different results. Albert found very little air after doing this, whereas it appears the CHS was pretty much completely full of air when I did it. All that air came out by running the CHS pump, there were just a few small bubbles elsewhere.

 

Regarding the radiator bleeder, see this thread:

Radiator bleeder valve stripped, what should I do? | PriusChat

I seem to recall Aiman's video stating that there was some issue about when to fully tighten that bleeder, and doing it wrong resulted in it being so tight when cold that it could not be opened. I think I recall that he said it should be only loosely closed when hot, and then tightened a bit more when it is cold. Watch the video to be sure as my memory isn't improving with age.

One advantage of bottom filling the ICE system is that, so far (2/2 examples) it wasn't necessary to open that bleeder at all.