heater core bypass - how to?
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Freshman User
Joined: Aug 2003
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From: los angeles
heater core bypass - how to?
I think I know how to bypass the heater core but I'd definitely like to make sure before doing so. I have a 1995 Ranger 3.0. Could someone please offer me a how-to on this? I have both Hayes and Chilton manuals but those are at home and I'm at work.
Water/coolant is leaking out from what looks like a drain built into the firewall on the passenger's side of the engine compartment. The liquid then drips down to the exhaust pipe below it. I've noticed that this possibly happens when the heater isn't even in use, though, so maybe my diagnosis of the problem is incorrect. I took a short trip to Coffee Bean this morning and noticed a small puddle under the front when I got in to drive back to work. I didn't use the heater going to or from.
Given the liquid is coming from that little drain thingy and I got the sweet smell of coolant when switching the heater on this morning, I suspect that the leak is within the heater core and that bypassing it will give me time to fix it down the road. Oddly enough, the core was just replaced within the last year or so. I'll have to search for a warranty on that.
So, any thoughts, ideas, suggestions, help!!
Thanks.
Water/coolant is leaking out from what looks like a drain built into the firewall on the passenger's side of the engine compartment. The liquid then drips down to the exhaust pipe below it. I've noticed that this possibly happens when the heater isn't even in use, though, so maybe my diagnosis of the problem is incorrect. I took a short trip to Coffee Bean this morning and noticed a small puddle under the front when I got in to drive back to work. I didn't use the heater going to or from.
Given the liquid is coming from that little drain thingy and I got the sweet smell of coolant when switching the heater on this morning, I suspect that the leak is within the heater core and that bypassing it will give me time to fix it down the road. Oddly enough, the core was just replaced within the last year or so. I'll have to search for a warranty on that.
So, any thoughts, ideas, suggestions, help!!
Thanks.
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
Sounds like a failed heater core. Most of the bypasses I've seen are nothing more than just a piece of heater hose in lieu of the heater core. BTW, when removing and installing hoses on the heater core, be gentle to avoid damaging the core. Keep an eye on the coolant until you get the bypass or repair done.
Laughing Gas
Joined: Jul 2004
Posts: 1,245
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There are 2 hoses running through the firewall to the heater core. Take both of them loose, and then you can either get a small section of piping to tie the two together, or you can take one of them completely out of the car and loop the other around to where the other hose was connected.
Bart
Bart
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Freshman User
Joined: Aug 2003
Posts: 34
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From: los angeles
Thanks for the quick reply posts, guys. I figured it would be as simple as disconnecting one of the hoses and looping the other around to where the other was connected. Confirmation is a good thing 
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