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Heater hose connector/ tool

How to replace heater hose

Heater hose connector/ tool

Postby sk47 [OP] » Jul 21 2013, 2:13pm

Hello; I have a 2004 silverado 1500. I purchased new radiator hoses and heater hoses to replace he old original hoses at the next antifreeze change. Upon looking at the heater hose setup I noted a connection for one of the heater hoses that I am not familiar with. It is on the firewall and one of the heater hoses is connected (to the heater?) by it. I suppose some sort of special tool is required or perhaps knowing the trick. Maybe a special tool and knowing a trick is required? The other hoses appear to have the simple steel spring clamps.

If this information helps, the hose in question appears to be the one that has a Y connection with a larger hose that goes to the coolant reservoir. This will be my first time replacing all the hoses on the 04 silverado. Even thou it has less than 36,000 miles on it, I feel that ten years may be pushing the safe limit with regard to time. Any pointers on this procedure will be appreciated.

I took photos of the heater hoses as they are currently found. The connection I initially had the question about is on the left. The hose connection to the right has a metal spring clamp but also appears to be attached to a plastic fitting at the firewall.

The hose on the left is the one in question so far
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silverado heater hose 002.JPG
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Re: Heater hose connector/ tool

Postby CheezyRiderAZ » Jul 21 2013, 2:49pm

You need a GM heater line quick disconnect tool. I got mine at NAPA or RockAuto but I heard even Communist Freight has 'em now.

It's a screwed up, MORPHADITE deal where GM decided to add a PLASTIC connection to a system that's worked for years and it's another part that's prone to failure.
Don't touch your fittings 'til you have the tool and new hoses. The fittings are brittle and they'll break if you stare at 'em too hard.

I have to admit, the new hoses snapped on easily and positively and I had no problems with 'em.

Just remember to throw your tool in your truck so you'll have it if you need it on the road......
Thanks,

CheezyRiderAZ

If it ain't broke, fix it 'til it is!
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Re: Heater hose connector/ tool

Postby sk47 [OP] » Jul 21 2013, 3:48pm

Hello; Here is a link to a tool. Is this the type tool needed?

http://www.toughnutz.com/heater_hose.mgi
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Re: Heater hose connector/ tool

Postby Machster69 » Jul 21 2013, 4:13pm

Looks like this, circle that has a slit. You push it over the pipe then slide it into the fitting...
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Re: Heater hose connector/ tool

Postby sk47 [OP] » Jul 21 2013, 8:25pm

Machster69 wrote:Looks like this, circle that has a slit. You push it over the pipe then slide it into the fitting...



Thanks.
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Re: Heater hose connector/ tool

Postby sk47 [OP] » Jul 21 2013, 8:28pm

Hello; I found this video. I guess this is what is done when the plastic connector fails.

http://www.youtube.com/watch?v=_HEJZTDLIOM
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Re: Heater hose connector/ tool

Postby Machster69 » Jul 21 2013, 11:53pm

No, the hose breaks free, the truck gets hot, the heads crack, you start having a mystery coolant leak... You trade it... Ask me how i know
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Re: Heater hose connector/ tool

Postby gmcultr » Jul 22 2013, 2:28am

How do you know kyle?!

sent from my Verizon Wireless Galaxy SIII
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Re: Heater hose connector/ tool

Postby sk47 [OP] » Jul 23 2013, 4:21am

Hello; Found another video describing how to remove the plastic parts of the quick connector. It seems that there is a metal end of the heater protruding thru the firewall enough so that the hose can be sliped over it and clamped in place.

http://www.youtube.com/watch?v=MuQwkUEpTWM
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Re: Heater hose connector/ tool

Postby Machster69 » Jul 23 2013, 1:30pm

Yes the heater has a pipe extending through the firewall...
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