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How to replace heater hose

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Old 05-31-2008, 12:09 PM
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How to replace heater hose

I have a 95 camaro z28 and one of my heater hoses has a small pinhole in it causing coolant to seep out of it. its such a small hole you cant see it unless the coolant is coming out of it. my question is how do i replace this hose. its not the conventional clamp rubber hose that has 2 clamps on it. it kind of but not exaclty. its the one hose that if your looking at the water pump from the front of the car its the one on the left that goes down then back to some hard lines than back to rubber hosing to the heater core i believe. its the one on the top. the question is how do i replace this hose with these hard lines? do ihave to get a new hose that has all the hard lines together? how much is it? its crammed around the hose down there and theres another heater hose too but its the one that plugs on the top of the heater core. is there any way i can temporarliy fix the hose.
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Old 05-31-2008, 03:05 PM
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If there is enough hose on either side of the pinhole, you could cut the hose and use a hose union (barb) and secure it with clamps. The individualy rubber hoses can be replaced by carefully cutting off the swaged collars and securing a new hose to the pipe with normal hose clamps
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Old 05-31-2008, 11:34 PM
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are the swaged collars you speak of where the first hose coming from the water pump goes into the metal thing that looks like its presse dtogether than out to another hose.
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Old 06-01-2008, 12:05 AM
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It is the collar that clamps the rubber hose to the metal hose. You can slice it with a Dremel cutoff wheel and then peel it off.
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Old 06-01-2008, 11:22 AM
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after i cut them off how will i connect the two together. the collar im talking about is right at the beginneing of the water pump then is like a right angle rubber hose that connects to this silencer or restrictor piece that has two swaged collars one on each side and a black middle section in it. then after the middle section is the other swaged collar going to a rubber hose out to the hard line toward the heater core. can i buy some kind of rubber hose coupler to just replace the hose that has the pinhole in it going to the water pump?
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Old 06-01-2008, 11:25 AM
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ok to make it a little easier to understand on your website which is awesome by the way this picture is what im talking about

http://shbox.com/1/heater_hoses.jpg

now what i need to replace is number 12 cause it has a pinhole. but number 13 is the collector piece but it just looks like it slides on. but in my car and what i actually have is the swaged collar thing your talking about. so after i cut it offf do i have to cut it off on both sides and buy a new one or how would i even crimp those collars down like the collars i have in the car already? im thinking of just going to buy a new number 13 and number 12 and see how it is to replace. basically the main thing is i need number 12 to be replaced but do i really need number 13? or is it just a restrictor of coolant flow or something? thanks man.
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Old 06-01-2008, 11:35 AM
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Any collar you remove, you should be able to use a normal hose clamp to reattach a hose. 13 is a flow reducer. Some people have had them leak, too. It might not hurt to replace it.
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