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Old 12-13-2018, 04:29 PM   #1
Warren J
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2008 VUE 2.4L
Dizzy Heater core bypass

I need some clarification on how to bypass a heater core on a 2008 Saturn Vue 2.4L. Please help...thanks

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Old 12-14-2018, 11:38 AM   #2
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Default Re: Heater core bypass

Why would you want to bypass a Heater Core?

Replace the Heater Core, if you have no heat.

...
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Old 12-14-2018, 05:34 PM   #3
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2004 L-Series 2.2L Wagon
2004 L-Series 3.0L Wagon
Default Re: Heater core bypass

Quote:
Originally Posted by Warren J View Post
I need some clarification on how to bypass a heater core on a 2008 Saturn Vue 2.4L. Please help...thanks
I assume your heater core is leaking?

As a stop gap measure, you are simply returning the coolant back to the engine. To do this, use a long loop of either 5/8"s or 3/4" heater hose. Make the loop very gentle to avoid any kinks. Clamp both ends on the engine fittings with worm hose clamps.

You will have to use some wire or zip ties secured to the engine or firewall somewhere to avoid any interference with the exhaust or the rack and pinion steering. Pay close attention to routing.

Obviously, you will have no heat by doing this but hopefully this will buy you some time until you can have the core replaced.

Let us know how else we can help.

...
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Old 12-15-2018, 01:14 PM   #4
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Default Re: Heater core bypass

Welcome to SaturnFans, Warren J!

rb6667's suggestion is right on the money. With regard to disconnecting the heater hoses, they only need to be disconnected from the engine. Since the hoses would now be loose near the engine they may be in danger of contacting a hot exhaust component or some other moving component nearby after being disconnected. If necessary, improvise a way in which you could use some zip ties to pull/move and suspend them away from a problematic area.

The use of a relatively long piece of non-molded heater hose is required because the two pipe connections at the engine are very close together. If the hose is too short for creating the loop it will inevitably develop a kink. Purchase a length of hose which is much more than you think you'll need to help in avoiding that problem. Having more than you need is good, having too little is not.

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Last edited by pierrot; 12-15-2018 at 01:21 PM..

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Old 02-20-2019, 01:47 AM   #5
dssl1
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Default Re: Heater core bypass



Quote:
Originally Posted by 2NDSOUT View Post
Why would you want to bypass a Heater Core?

Replace the Heater Core, if you have no heat.
Because tearing open the dash to get at the heater core is a lot of work, and heat is rarely if ever needed in places like south florida.

Last edited by dssl1; 02-20-2019 at 01:53 AM..

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Old 02-20-2019, 03:38 PM   #6
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Default Re: Heater core bypass

Quote:
Originally Posted by dssl1 View Post



Because tearing open the dash to get at the heater core is a lot of work, and heat is rarely if ever needed in places like south florida.
You make it sound, like it's a difficult job, which I am sure that it is......

Kind of like tearing the dash apart to replace the odometer gear on 1st and 2nd Gen S-Series Cars- Just as time consuming.

Been there, Done that- and Odometer Gears.Com, took my write-up Vebatim from Saturnsfans (from 2008) and posted it on their website for replacing the Odometer Gear for S-Series.

They still have never given me credit.

...
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94SL2 HCE, "Pearl"

99 SL

94SL2 260K Miles
1/15

97SW2 266K Miles
2/15

Always
94SC1 340,501 Miles
Org. Engine/Auto Trans
2/97-10/08
Gone 3/12

92SL1
05VUE
91SC

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