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Old 02-09-2007, 06:17 PM   #1
99slvrs
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Water noise under dash???

O.K I did a search for this but was not happy with what I found. Basically im getting water noises under my dash. It usally happens in the mornings but its been happening a lot also whenever I turn the car on. I remember changing my thermostat last winter because I had the same problem and it went away. So has anyone else had this problem recently? I will probably change out the thermostat again anyway but I just want to be sure its not something else before I do. Any suggestions would be appreciated!
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Old 02-09-2007, 07:28 PM   #2
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Re: Water noise under dash???

What does a water noise sound like? Sloshing, bubbles? Your heater core is under your dash so it's probably related to that.
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Old 02-09-2007, 07:40 PM   #3
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Re: Water noise under dash???

My wife has the same problem. I tried burping her cooling system to no avail.
The noise does sound like a small waterfall under your dash a babbling brook of some sorts. any ideas I might try the thermostat.
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Old 02-09-2007, 07:42 PM   #4
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Re: Water noise under dash???

you guys probably have too much water in your coolant, i have had cars do this before, and it was always from slushy coolant going thru the heater core. Look into this, i would bet this is your problem.
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Old 02-09-2007, 07:50 PM   #5
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Re: Water noise under dash???

50/50 mix on a motor rebuilt 15k ago and new radiator.. ..everything.
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Old 02-09-2007, 07:57 PM   #6
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Re: Water noise under dash???

50/50 isn't the correct ratio for a cold area, more like 70/30 is probably what you need if you are still having the issue. That is what everyone should run in the wintertime, it says so on the coolant jug.
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Old 02-09-2007, 08:00 PM   #7
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Re: Water noise under dash???

He lives in Houston according to his info...doesn't exactly get cold there. But I would agree with you otherwise.
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Old 02-10-2007, 03:39 PM   #8
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Re: Water noise under dash???

Well the water noise sounds like a trickle then sloshing when I apply the gas pedal. I talked to a mechanic and he said its a common problem with chrysler motors. But thanks for replying guys, I will probably do a system flush soon and be sure to add 70/30 mixture.
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Old 02-16-2007, 04:23 PM   #9
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Re: Water noise under dash???

Low coolant level.

Most common causes:
A Dried-out radiator cap
B Hose in overflow bottle falls off bottom of cap

Solution A:
- Buy radiator cap.
- Buy jug of premix coolant.
- Remove old radiator cap.
- Start engine.
- Turn heater to full heat, medium fan speed.
- Add coolant as needed.
- Wait for engine to get up to operating temperature.
- When thermostat opens, continue to add coolant as needed (no bubbles).
- Install new radiator cap.

Solution B:
- Remove overflow bottle cap.
- Verify hose on bottom of cap.
- If hose is missing, install new hose.
- See Solution A. You're still low on coolant.
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Old 02-16-2007, 04:32 PM   #10
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Re: Water noise under dash???

You can also try and raise the front of the car off of the ground. This helps the bubbles in your system reach the filler neck. You might try to rent a vacuum powered coolant fill tool somewhere. I paid $200 for my Snap-On, and is worth every last dime. Go try a drain and fill on a 2000'ish Celica if you want to see why these are helpful. http://buy1.snapon.com/catalog/item....store&tool=all
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Last edited by 1timehondalover; 02-16-2007 at 04:37 PM. Reason: add info
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Old 02-25-2007, 08:00 AM   #11
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Re: Water noise under dash???

Is it fixed? Yea do a system flush and get that old sh!t out of there and put some new fluid in. Should help.
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Old 02-25-2007, 08:40 AM   #12
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Re: Water noise under dash???

I've noticed this problem with my work van (2005 chrysler town&country).
I've been hearing that water noise under the dash since we picked it up from the dealer lot. I took it to my friends shop and had the coolant flushed twice and its still doing it now and the car has almost 40k miles on it.

my galant does it sometimes too. everything has been changed and there are no air bubbles in the system.
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Old 03-22-2007, 08:54 PM   #13
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Re: Water noise under dash???

check for loose buckets of water hidden throughout the car
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Old 03-22-2007, 09:03 PM   #14
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Re: Water noise under dash???

Quote:
Originally Posted by LkyblK
check for loose buckets of water hidden throughout the car
hahaha.... yea i got the same problem. i hear it every time i turn on the car. is it possible that it could be the heater hose?
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Old 03-23-2007, 11:23 AM   #15
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Re: Water noise under dash???

Does the carpet ever get wet on the passenger side????

check the evaporator case from the ac system under the dash, if the tray gets clogged where all the condensation dripss off and out of the car it can make the same noises your talking about.
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