Kats heater FAILED AGAIN

[DifferentPointofView]

^

I have one question. After I unplug the heater and start my engine, I seem to find that when I accelerate away from my driveway that I get an instant sloshing/ water trickling sound at the dashboard (heater core). When this happens, I get instant feedback from my temp. gauge that I have hot coolant, but if I just let it sit there it doesn't get warmed up for a long while.

I've come to the conclusion that by the way I've got the block heater installed, that the coolant to the heater core moves the coolant during acceleration that is heated opens up the thermostat, letting a whole lot of coolant into the engine and getting feedback from the temp gauge.

I'm also thinking that the heat from the block heater only partially opens the thermostat, so that the coolant flows to the engine core, but cools off after a while.

I'm wondering if I should get that stubborn bolt off of the engine bay and take coolant from the engine, sending it to the heater core, and then back into the engine instead.

Although these are just theories. I've also got a mechanical fan that runs all the time, so at Idle that could not be enough to move the coolant and the mechanical fan could prevent warm up as quickly.

[almightybmw]

Not actually adding a lot here, but the sloshing sound isn't just water rushing through the heater core, it's air as well. Water moving is quite quiet, its the air mix that produces the noises (most of it, not all). I would consider trying to get any air out of your core and lines if you can, as that'll cause issues with the pump and/or overheating (worst case scenario). My car has been doing that for a while now, just haven't gotten off my tush to fix it, so it's not bad, but not good either.

[DifferentPointofView]

ya, But I'm not sure how to go about it. I figured the air would rise and go into the reservoir tank when the Jeep got heated all the way up, but it hasn't done that.

[MazdaMatt]

wait till your car is cool - a couple hours!!!

remove your rad cap

Idle it till it warms up and coolant starts to overflow out the rad cap (be enviro-friendly and catch that coolant).

Idle it for about 10 more minutes to allow all the air out - as you see it bubble over, pour more coolant in. Be on top of it or it will suck back air.