Weird noise behind passenger side dash??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wldcat10 · 08-25-2010, 06:02 PM

I have a weird noise coming from behind/under the passenger side dash. Just started a couple days ago. It makes a sound like a radiator when it over heats, kinda like a bubbling sound. I don't have a repair manual so I dont know what it is? Any Help? Thanks!

gregg72340 · 08-25-2010, 06:09 PM

Heater core????

wldcat10 · 08-25-2010, 06:13 PM

What can I do to stop it from making that noise? I can only here it when I turn off my truck and the noise only last about 5 mins and then stops.

FRENCHBLUE72 · 08-25-2010, 07:16 PM

Seems to me like it could have an air bubble in it?

gregg72340 · 08-25-2010, 07:20 PM

Quote:

Originally Posted by FRENCHBLUE72

Seems to me like it could have an air bubble in it?

Cpuld it possibly have a very small leak and its bleading of pressure......maybe not sure what to tell you on this one, never heard of this before

tubbedII · 08-25-2010, 07:29 PM

Don't know if this helps, but I heard this in my S10. The intake gasket went bad and caused the radiator to run low. Fixed the gasket, filled up the rad (after a flush), and no more sound.

08-25-2010, 06:02 PM	#1
wldcat10 Registered User Join Date: Apr 2010 Location: Tucson, Arizona Posts: 157	Weird noise behind passenger side dash??? I have a weird noise coming from behind/under the passenger side dash. Just started a couple days ago. It makes a sound like a radiator when it over heats, kinda like a bubbling sound. I don't have a repair manual so I dont know what it is? Any Help? Thanks! __________________ 1970 CST/10 LWB 350 1984 Blazer

08-25-2010, 06:09 PM	#2
gregg72340 Registered User Join Date: May 2010 Location: ambler, pa Posts: 325	Re: Weird noise behind passenger side dash??? Heater core???? __________________ Just would like the snow to stop so I can actually work on my truck!!!!!!!!!!!

08-25-2010, 06:13 PM	#3
wldcat10 Registered User Join Date: Apr 2010 Location: Tucson, Arizona Posts: 157	Re: Weird noise behind passenger side dash??? What can I do to stop it from making that noise? I can only here it when I turn off my truck and the noise only last about 5 mins and then stops. __________________ 1970 CST/10 LWB 350 1984 Blazer

08-25-2010, 07:16 PM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	Re: Weird noise behind passenger side dash??? Seems to me like it could have an air bubble in it? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-25-2010, 07:29 PM	#6
tubbedII needs more $$$ Join Date: Mar 2004 Location: Sacramento Posts: 1,936	Re: Weird noise behind passenger side dash??? Don't know if this helps, but I heard this in my S10. The intake gasket went bad and caused the radiator to run low. Fixed the gasket, filled up the rad (after a flush), and no more sound. __________________ 1970 2wd Blazer

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