Question about 2001 Pontiac Grand Am SE

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Bypass heater core

What hoses to bypass

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Jus us a piece of usually half inch copper pipe n disconnect BOTH hoses from heater core and hook them both on each end of copper pipe or whatever u can find that will fit ID of heater hoses...plastic pipe is good too for this...heater core leak?...a good radiator sealer will fix this usually but you must have the heat on full for the solution can travel through the heater core...itmight still leak for awhile n then stop...if not, put some more radiator sealer in...always use the powered aluminum sealer...

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

  • 3640 Answers

SOURCE: heater core bypass

you will not have any heat at all ! so do this. remove the hoses. on firewall side to heater core. go to any auto parts store and buy a coolant flush kit, then use the right size tube to hook hoses back together and clamp them. recheck coolant and that should be it. good-day !

Posted on Nov 22, 2011

nighttrain_r
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SOURCE: I was leaking anti freeze so I had a pressure test done. The Thermo bypass hose needs to be replaced.I have the part but I don't know how to install it. Does anyone know how to do this? Thanks

drain enough water out of the rad to get the level below the area you are working on, pull the hose clamps and remove the old bypass hose(if its older sometimes a box knife and a great tool to speed things up here) install the new hose and use new clamps, sometimes in a tight spot rubbing a little oil on the inside of the hose helps

Posted on Mar 15, 2012

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1 Answer

How can I bypass the heater core


not sure if this is what you are after but try this link..
Step 3: Connect the Hoses Together. Use a hose connector or hose coupler to attach the two ends of hose together. That way, the anti-freeze that would be routed through theheater core will instead just go through a short loop of tubing.

How to Bypass a Car Heater Core ' DoItYourself.com

www.doityourself.com/stry/how-to-bypass-a-car-heater-core How can bypass the heater core Google Search

Dec 15, 2016 | Cars & Trucks

2 Answers

Heater blows cold air--where is heater control flap or switch?


These cars are notorious for having blocked heater cores, causing the heater to blow cold air. That's because there is a heater core bypass hose near the firewall that allows the coolant to bypass the heater core. Eventually the heater core fills with gunk and no coolant passes through it. You'll need to disconnect the hoses from the heater core at the firewall and flush the core using a garden hose. Flush both ways till water runs clear. If you can't access the heater core fittings at the firewall, then follow the hoses from these fittings back to the engine and disconnect them at that point and flush from there. If you flush from the hoses in this manner, it is important that you clamp off the bypass hose at the firewall with a vice grip pliers.
Otherwise the flushing water will go through the bypass hose and not the heater core.

heater-blows-cold-air-heater-control#solution-section-hn15hvgbess52pvw4lrkzak3-4-1.jpg

Dec 21, 2015 | 2001 Ford Taurus

1 Answer

Can i bypass heater core on a 2001 ford ranger edge 3.0 without bypass controll valve


to by pass a heater core just connect the two hoses to the heater core together with a connector and hose clamps.

Feb 20, 2015 | Ford Ranger Cars & Trucks

2 Answers

How do I bypass the rear auxiliary heater core?


U must connect the coolant in hose to the coolant out hose with a u type metal hose by passing the heater core all together

Sep 13, 2014 | 2003 GMC Envoy

2 Answers

Heater doesnt work but ac does


Assuming the fan blows OK but you have no heat. Go to the firewall and notice where the heater hoses enter and exit the cabin. You'll notice a metal manifold and also a rubber bypass hose that connects the two. This bypass hose is a design problem and causes the coolant to bypass the heater core which is located inside the cabin under the dash. Over time, the heater core gets blocked by gunk and you'll get no heat. All the coolant flows through the bypass hose when this happens. The fix is to flush the heater core itself. It's difficult to access at the firewall, so I disconnect the two hoses at the engine itself and attach a garden hose to flush it. Before doing this you must clamp (vice grips) the bypass hose so that all of the water goes through the heater core.

Jan 24, 2014 | 2001 Ford Taurus

1 Answer

Heater is not getting hot enough


This is a very common problem on the Taurus, at least up until the 2001 model and possibly later. The Taurus design incorporates a bypass hose (near the firewall) that connects between the heater hoses entering and exiting the firewall in the engine compartment. As the Taurus ages (6 or 7 years old), the heater core under the dash increasingly gets clogged with gunk because the bypass hose provides a path for the coolant to bypass the heater core itself. The fix is to disconnect the heater hoses at the engine block (too difficult to disconnect these hoses at the firewall-no space) and flush the heater core through these hoses with a garden hose. Before doing this you must crimp (with vise grips and a rag to protect the rubber hose) the bypass hose--otherwise the flushing water will bypass the heater core. I attached the garden hose to an adapter that I could clamp into the heater hose to make the connection. BTW, the coolant in the radiator was a pristine lime green color -notice the dark brown color of the gunk flushed from the heater core. b4d9b81a-db6d-4a32-852d-2725671d69af.jpg d06ea83d-50ae-4178-a917-1275133ccd9c.jpg c195fd24-d013-4f9c-a878-5e49e1ff2612.jpg 2d1a9536-3c83-45c8-8d60-7eea7e95a4e8.jpg 1cc41e46-c4dc-4f8f-924c-4c751e5051f8.jpg

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Jan 02, 2014 | Ford Taurus Cars & Trucks

1 Answer

Heater blowing only cold air


you may have a clogged heater core or heater core bypass valve may be stuck closed. bypass valve is usually on the firewall on one of the heater core hoses. if valve seems to be operating properly. you will need to let the vehicle cool down. disconnect both heater hoses. connect garden hose to one side of heater core let water run through one side and then the other side. if the heater core is too clogged it may need to be replaced.

Jan 17, 2013 | 1993 GMC Sierra

2 Answers

My heater not working, i replaced thermostat and radiator hoses, had radiator flushed and rodded, and still no heat. What is wrong?


Too much blockage in heater hoses or heater core.
Bypass valve may be stuck on "bypass" .

1. Remove bypass "Tees", but don't discard.
Replace with straight-through hose fittings.
The core may start leaking under the water pressure since there is no bypass hose.

Once the heater starts working, put Tees back in place. You need bypass protection or the engine will overheat.

Sep 25, 2009 | 1996 Ford F150 Regular Cab

1 Answer

Bypassing heater core on 1993 audi 90


yes u can bypass the **** core. all you need to do is, take the two hoses going to the heater core, and take em off the heater core, take one hose comply off, and hook the other remaining hose were the other hose was hooked up at.. this will bypass your heater core, but keep in mind you will not have hot air in the cabin of the car..keith...

Mar 14, 2009 | 1993 Audi 90

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