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Tractor Talk Discussion Forum

Quick-couplings on GM heater hoses?

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K.B.-826

10-16-2006 17:59:06




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I know this is O/T, but I need to get a heater core replaced in a "91 Caprice ASAP. The steel lines coming off of the heater valve have a black plastic coupler at the end, the tubes from the heater core plug into these and are locked in place by a white plastic piece. It looks like you just simply push the tabs of the white plastic piece together and the whole thing pulls apart. I cannot for the life of me get that thing totally squeezed together. It doesen"t help that there isn"t much room to work. Is there a tool for these or a trick to getting them apart? If so where can you get the tool? Is it somthing you can walk right into NAPA and buy, or do you have to wait a week for the Snap-On man to order one in?

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Revredneck

10-17-2006 07:14:21




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 Re: Quick-couplings on GM heater hoses? in reply to K.B.-826, 10-16-2006 17:59:06  
The real problem isn't getting it apart, it's getting the fitting out of the manifold without breaking it. I've had to remove several intake manifolds to drill out and re-tap broken off connectors. The part isn't very expensive, but the headache is gigantic. That being said, you really should replace that whole fitting. Use some heat on the base (gently, it's aluminum) and very carefully try to remove it. It would also help to pray real hard, and maybe fast for a day or two, just to be safe. Good Luck and God Bless, Tommy

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Jon Holt

10-16-2006 19:40:24




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 Re: Quick-couplings on GM heater hoses? in reply to K.B.-826, 10-16-2006 17:59:06  
When I worked for the Mazda/Ford dealership here we had the same kind of connectors and I used a ninety degree needle nose pliers and lots of lubricant.



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Glen in TX

10-16-2006 19:01:45




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 Re: Quick-couplings on GM heater hoses? in reply to K.B.-826, 10-16-2006 17:59:06  
Yep most auto supplies will have the tools for those and usually in a set.



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Bob

10-16-2006 21:13:59




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 Re: Quick-couplings on GM heater hoses? in reply to Glen in TX, 10-16-2006 19:01:45  
Glen,

No tools are necessary to disconnect the heater hoses. The fittings must be corroded a bit, if he can't depress the tabs, and easily pull them apart by hand.

You are thinking of the fuel lines.



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Glen in TX

10-16-2006 21:31:24




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 Re: Quick-couplings on GM heater hoses? in reply to Bob, 10-16-2006 21:13:59  
Nope I was thinking of the oil cooler lines lol. He is going to need new locking tabs and hose no matter which ones anyway.



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Bob

10-16-2006 21:43:48




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 Re: Quick-couplings on GM heater hoses? in reply to Glen in TX, 10-16-2006 21:31:24  
Glen,

You're sure right about needing to replace the hose/couplings, as the seal rings are not available separately from GM,and the old ones will almost certainly leak, if re-used.



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