New coolant expansion tank rattles - ZR-1 Net Registry Forums

ALLTHECAMS · 03-01-2017

The coolant expansion tank in my Z leaks at the nipple that connects to the overflow. I got a new one but the new one rattles like it has a marble inside. is this normal?

Dynomite · 03-01-2017

Remove the Marble

ALLTHECAMS · 03-01-2017

Quote:

Originally Posted by Dynomite

Remove the Marble

Seriously? How do I do that?

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billschroeder5842 · 03-02-2017

There are no moving parts so I can't imagine a rattle.

Just make sure you have the three screws tight and the hose tight and free of obstruction?

ALLTHECAMS · 03-02-2017

Quote:

Originally Posted by billschroeder5842

There are no moving parts so I can't imagine a rattle.

Just make sure you have the three screws tight and the hose tight and free of obstruction?

I haven't installed it yet. Its brand new too. Weird.

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9T1 Red ZR1 · 03-02-2017

Hi,
If it's the black tank at the rear passenger side of the engine compartment, I think they have a low coolant sensor on the bottom with an electrical connection. The sensor moves up and down, maybe it's that? If it is that, I believe it's normal.

Bill

ALLTHECAMS · 03-02-2017

Quote:

Originally Posted by 9T1 Red ZR1

Hi,
If it's the black tank at the rear passenger side of the engine compartment, I think they have a low coolant sensor on the bottom with an electrical connection. The sensor moves up and down, maybe it's that? If it is that, I believe it's normal.

Bill

Its probably that. It is in the lower part of the tank.

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HAWAIIZR-1 · 03-03-2017

Quote:

Originally Posted by Dynomite

Remove the Marble

Cliff, Don't put this one on "Solutions"....lol.

03-01-2017	#1
ALLTHECAMS Join Date: Jul 2016 Location: Bloomington, MN Posts: 127	New coolant expansion tank rattles The coolant expansion tank in my Z leaks at the nipple that connects to the overflow. I got a new one but the new one rattles like it has a marble inside. is this normal? __________________ 1991 ZR-1 #520 Arctic White/Gray

03-01-2017	#2
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,797	Re: New coolant expansion tank rattles Remove the Marble __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS

03-02-2017	#4
billschroeder5842 Join Date: Nov 2016 Location: Southlake, TX Posts: 592	Re: New coolant expansion tank rattles There are no moving parts so I can't imagine a rattle. Just make sure you have the three screws tight and the hose tight and free of obstruction? __________________ Bill Schroeder Texas Proud! 1991 Corvette ZR1 #1388 2015 Challenger Scat Pack Shaker

03-02-2017	#6
9T1 Red ZR1 Join Date: Jun 2013 Location: Warminster, PA Posts: 78	Re: New coolant expansion tank rattles Hi, If it's the black tank at the rear passenger side of the engine compartment, I think they have a low coolant sensor on the bottom with an electrical connection. The sensor moves up and down, maybe it's that? If it is that, I believe it's normal. Bill __________________ LT5 Red/Red Last edited by 9T1 Red ZR1; 03-02-2017 at 04:18 PM.