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New water pump - need to bleed air

951 views 0 replies 1 participant last post by  Brian L 
#1 ·
I bought a new AC Delco water pump and had a shop install it for me because I didn't want a couple frustrating hours of banging my knuckles on that top of job. Problem is, I suspect I have air somewhere in the line. I pulled the cap off when it was cool to see if he had topped off the coolant, and it was definitely full at the top radiator hose. However, I started the engine, and nothing was flowing through there. I recall seeing it flow right through there when I did a flush once before. I went to loose the bleeder valve, but noticed that he must have stripped that with a screwdriver - I can't get a hex socket in there. I tried a screwdriver like he did, and it won't loosen, so I'm thinking he didn't have the right tool, tried a screwdriver, didn't get it off, and now screwed it all up. So, what I tried next was taking the cap off of my flushing T that I had put over in the input line to the water pump. When I started the engine that time, coolant came spewing out of the open radiator hose. Turned it off, tried again, spewed more out. Capped off that T again, started again, and now of course the coolant wasn't at the top, but I was having trouble telling if it was flowing in there (didn't have a flashlight handy). I was hoping that fixed it, so I poured some distilled water in there to top off what I had lost, and it filled back up to the top to where I could see it wasn't moving again.

My questions are: Is it maybe still flowing, but I just can't see it because it's so full? Did I potentially make it worse my opening the Flush T and maybe adding more air? Is there any other way to bleed the air other than the bleed valve at the top?


Thanks!
 
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