No amount of bleeding is fixing the water fall sound coming from the heater core.
#1
SOLVED: No amount of bleeding is fixing the water fall sound
I’m all out of ideas. I’ve bled and bled and bled, on uphill slopes and level ground. Some days this week the water fall noise was gone, other days like today it comes back. Temps are between 188 and 196. The only cooling system component I haven’t replaced in the last couple weeks is the water pump. Is there any way this could be a cause? It’s very audibly confirmed to be at least pushing coolant around.
Last edited by Brandon318; 06-07-2019 at 03:52 PM.
#3
How is the heater? Both hoses feel nearly the same temp? My 02 heater core gurgled on me once then stopped, then when I needed the heater I had nothing. Ended up being clogged up entirely. Back flushed it & blew out a lot of snot looking goo. Problem went away after that.
When you remove the bleeder on the T can you still add coolant? Keep doing so until you can't. It can sometimes take a few warm up/cool down cycles to get the air out completely.
When you remove the bleeder on the T can you still add coolant? Keep doing so until you can't. It can sometimes take a few warm up/cool down cycles to get the air out completely.
#4
How is the heater? Both hoses feel nearly the same temp? My 02 heater core gurgled on me once then stopped, then when I needed the heater I had nothing. Ended up being clogged up entirely. Back flushed it & blew out a lot of snot looking goo. Problem went away after that.
When you remove the bleeder on the T can you still add coolant? Keep doing so until you can't. It can sometimes take a few warm up/cool down cycles to get the air out completely.
When you remove the bleeder on the T can you still add coolant? Keep doing so until you can't. It can sometimes take a few warm up/cool down cycles to get the air out completely.
When I remove the bleeder on the T I can still add a wee bit of coolant. I keep doing it through the expansion tank though until it runs out steadily from the T. I put the bleed screw back in while it's running steadily, so there's no instance where I can fill through the bleed port.
The water pump has never been replaced. The truck is at 156,000 miles. With BMWs I've had in the past, the water pump is very clear when it needs replacing. Either the impeller explodes and send plastic all over the water galleries, or it starts bleeding out the weep hole. Neither seems to be happening with this water pump yet. Well, the impeller isn't plastic on the D2, so not a risk there. The pump probably has nothing to do with this, right?
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Heater core isn't leaking as far as I can tell. No moisture on the windows or carpet. And here's the kicker... the coolant level isn't changing.