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  #1  
Old 21st April 2005
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Fustercluck Fustercluck is offline
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Default HeaterCore Bypass??

I dont know if anyone read my other posts fro before. But heres the situation. I have coolant puddling up on the drivers side floor mat of my Saab. It is leaking from somewhere right above the gas pedal.

My questions were.

1. Do the inlet and outlet lines for the HeaterCore run right through the firewall? And if so are they the ones that run on the drivers side right up high on the firewall in the vicinity of your accelorator cable?

2. Can you safely bypass the heatercore by just disconnecting them from the firewall and connecting them together?

If im wrong could somone explain to me if it is possible and how to bypass the heater core?

I wont have the car come summer time so im not too worried about the heat issue. Im actually pressy pissed because i just ruined a brand new pair of Merrel hiking shoes because the coolant drooled all over them yesterday and i cant get it off them.

THanks in advance
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  #2  
Old 21st April 2005
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You have it, just join the 2 hoses using a piece of pipe say 15mm
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  #3  
Old 21st April 2005
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Fuster:


From what I gather, the valve is many times the issue. Could be just as easy to replace the valve as to bypass the core. Your call.
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  #4  
Old 21st April 2005
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How do you replace the valve? And where is the valve?
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  #5  
Old 21st April 2005
Basre Basre is offline
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Nawwww.. Replacing the pesky Valve is Not easy.. Putting a bypass in is child's play in comparison. Also the Valve needs to be a Genuine Saab part, aprox $100, as the aftermarket ones have a history of failng after their 1st birthday.
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  #6  
Old 21st April 2005
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Zelandeth Zelandeth is offline
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Bypassing it's certainly easier and quicker. Probably takes about ten minutes, including any bleeding.

Replacing the valve isn't terribly complex a proceedure - but it's fiddly. Really quality fiddly. It's under the dash (right underneath the passenger side speaker grill) on the firewall - right next to where the hoses from the engine bay connect to it as I recall.

I've never actually changed it though, so I'll let someone more in the know talk you through the proceedure.
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  #7  
Old 21st April 2005
no h no h is offline
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The non-factory valves are junk? Really? Dang, I just bought one.
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  #8  
Old 21st April 2005
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There is quite a lot of experience on these forums of aftermarket heater valves. If I were you, I'd search the forums for that broader view.

I'm sure there are folk on here who can recommend a decent brand of aftermarket valve.
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  #9  
Old 21st April 2005
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Fustercluck Fustercluck is offline
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Thanks for the response guys. I think ill just bypass it for summer and see what happens.
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