View Full Version : Dash Noise
12-25-2009, 08:45 PM
Well im not sure when it started as its just recently got more aggravating but i have a kinda like a water gurgling noise coming from my dash on the passenger side kinda near the bottom i can rarely hear it when the truck is running but its very evident right when i turn the truck off until it quits after a few minutes. Any help would be appreciated and to add ive never had water leaking in my truck not once and i cant hear it from the engine bay so im pretty confident its coming from inside the cab.
12-26-2009, 09:33 AM
You have air in your cooling system. There's a leak somewhere that has let it get low. Could be anywhere in the system; look all over for leaks, and if possible do a pressure test on it to help find it. If the heater core itself was leaking you'd probably have already noticed wet, smelly carpet.
I had to fix my ext cab for this a few months ago; the hose to the core was leaking right where it clamps onto the core, so it was leaking down the outside of the firewall in the engine compartment. But again, it doesn't have to be the core or the hoses related to it, it could be a leak anywhere in your cooling system letting the air get in.
12-26-2009, 02:47 PM
thanks man yeah i just figured out today it was coming from the heater core i cracked open the black case down there surrounding it and it was dry as a bone inside but i could hear the gurgling noise. I just gotta track down where its coming from now.
Once i find out where the leak is and fix it what steps do i need to do next to get this straightened out like how do i get the air out?
thanks again i would have found the where noise was coming from but never would have none thats what it was u saved me alot of time
12-27-2009, 08:42 AM
just gurguling cuz it hungry for lovin haha
12-27-2009, 10:00 AM
Once you've fixed the leak, a few days of running it will purge the air normally. The only time I worry too much about purging the air is when there's big air pockets that cause temperature problems. When I replace thermostats, I drill a couple small holes in the flat area of the 'stat so that it can bleed a little air; this will not affect its normal operation. You could also just jack the front of the truck up so that the radiator neck is the highest point in the system, fill it with coolant, run a little bit, fill it some more, etc. but you'll probably still go through a couple day period of running it and checking it before the air is purged.
12-27-2009, 04:33 PM
Could this be effecting my temp gauge its seemed kinda odd for some while when i crank it will run all the way over close to red and kick back to normal, the truck has been ran hot before due to a t-stat but since drove fine could this have caused theses air in my system problems.
01-02-2010, 05:38 AM
You have air in your coolent or your coolant is low or both, if your coolent was low it can make your temp guage go up near the hot level and then after a few secs it will drop down again to norm and it will do this untill you put more radiator fluid in. If you do find a leak fix it and take your rad cap off while cold and the cap to your overflow start your truck up and let it run for a few, put your rad cap back on and let your overflow off and take it for a short drive the air will work itself out. Check the pisser hole on the bottom of the water pump and see if it leaking there.
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