Quote Originally Posted by Scottydoggs View Post
thats air in the heater core, the bleeder wont fix this. you need to take both heater hoses off the alt bracket, then flush the core with a garden hose till clear water comes out, (just put one of the hoses to the garden hose with it on med flow.) now keep both hoses as full as you can and put them back on. now the heat will work really good again. as im sure it sucked last winter lol .

Car has been in the upper midwest,(college) the past 2 years. Winter temps as low as -25 F. No problems with interior heat at all. Believe me, I'd hear about it if there was. Flush/fill was performed prior to winter 2017/2018, including the heater core of course. Heater function was no issue. However, the overflow tank level is lower than it should be (engine is currently hot). I'm letting it cool down (takes a while here in AZ) then I'll try bleeding.

Don't know why the sounds are only heard upon harder acceleration though. Quiet during normal city driving.