Slooshing noise
Hall Of Fame
Joined: Jul 2006
Posts: 12,204
Likes: 10
From: Gainesville, Ga.
wait - stop.
you have a simple problem - air in the heater core.
don't complicate it by changing the water pump or heater core or anything else unless you know something is bad or leaking (which it could be).
if you don't have any leaks letting in more air - it will work itself out.
if it doesn't work out, you may have an air leak. check your hoses and clamps and run the engine a little with the radiator cap off.
you have a simple problem - air in the heater core.
don't complicate it by changing the water pump or heater core or anything else unless you know something is bad or leaking (which it could be).
if you don't have any leaks letting in more air - it will work itself out.
if it doesn't work out, you may have an air leak. check your hoses and clamps and run the engine a little with the radiator cap off.
Thread Starter
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Amateur
Joined: Feb 2012
Posts: 26
Likes: 0
From: Delta, BC Canada
I already tried to burp the system, I definetly cant get the air out if there is air in it. I ran the truck for close to an hour with the cap off on a very steep incline. The Rad is topped off the resivoir is at the correct mark.
Champion
Joined: Aug 2009
Posts: 3,015
Likes: 8
From: Western NY,
I have the identical problem you describe. Water pump changed 10k miles ago, and heater core changed 500 miles ago. The sounds never went away. I've come to realize that its gonna be there forever.
I know somehow someone will tie it to plenum.....that is being done on Thursday...LOL
I know somehow someone will tie it to plenum.....that is being done on Thursday...LOL
Champion
Joined: Aug 2009
Posts: 3,015
Likes: 8
From: Western NY,
this might sound retarded but you did have the heat on full blast when doing this right?
Administrator
Joined: Apr 2010
Posts: 87,461
Likes: 4,219
From: Clayton MI
Doesn't matter, there is no flow control valve for the heater core.
LOL