I've never done this particular task, so at the risk of sounding clueless, how exactly do you bypass a heater core? This is on a non A/C car. The heater core is leaking on the inside of the car and steaming up the windshield.
Just cut the two hoses from your heater and connect them together. You don't really have to cut anything but it makes more sense explaining it that way. What used to go into your heater and then back out is now replaced with one hose.
The hoses are usually different sizes, 5/8" and 3/4", most auto parts stores carry an adaptor to complete the splice.
A cleaner look would be to just cap each port. Caps can be found on the HELP racks in any parts store. :TU:
I just ran from water pump to intake, through intake, back to water pump, basically a circut from the two smaller nipples on the water pump with the intake in the middle. Looks pretty clean actually. You might want to close off the heater core with plugs incase you go around a corner to fast and the little coolant left in there spills out over your engine and firewall.
Would anyone trust this plastic thing to do the job? I'm concerned about it bearing the high temps and being made in china. Help/Dorman part # 47080 http://www.amazon.com/Help-47080-Heater-Hose-Connector/dp/B000CO93HU
I would use a cap on each end. I have seen where the water by-passes & causes over heating issues when the hoses are connected together. Tom T.
So do you have to block off the openings in the firewall with anything? no, but it would probably be a good idea to apply an air hose to one of the nipples to see if you can force water out the other one. otherwise, whatever water is still in the heater core is going to slowly leak out onto your floor.
Thanks for the suggestions. I know this is pricey, but if I find one for le$$, what about this device? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=230398230438&ssPageName=STRK:MEWAX:IT#ht_500wt_841
Tom, other than bypassing the heater core which offers additional cooling, any ideas why the engines got hot? Devon
Devon, because it just keeps circulating the coolant between the two outlet/inlet. The heater core acts as a restriction & when the heater control valve is in the off position it blocks the coolant from flowing at all.
So capping both ends instead is better than a continuous flow? Sorry if I am asking the obvious, but I don't have a temp gauge and I don't want to do this twice. Thanks nevermind, question answered above, thanks guys.
