HEATER HOSE

4-Cyl. Technical/Performance Discussions
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pdoan_98
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HEATER HOSE

Post by pdoan_98 »

i have a 1994 1.6L DOHC engine with a manual transmission. I'm looking for the name of the heater hose that is connected to outlet side of the heater core and is routed to a connection below the air box. Any help would be greatly appreciated.

Pat
stepchyld
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Re: HEATER HOSE

Post by stepchyld »

I looked at a manual I downloaded several years back and could not find a name for either of the hoses. It labeled them 'from heater' and 'to heater'.
When standing at the front of the car, looking over the intake manifold at the firewall, is it the one on the right? That's the hose labeled 'from heater' in this manual.
93 GS, ATX to MTX swap, chrome 16x7, upper strut bars, SRD LCA bushings.
Upcoming improvements: Tokico/Eibach struts/springs, energy suspension LCA bushings
94 RS MTX, Engine swap completed, ALIVE Again!
95 RS ATX, parts car/project X
pdoan_98
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Re: HEATER HOSE

Post by pdoan_98 »

No. Looking at the firewall, the hose is on the left side closer to the passenger side of the car. It is the bottom of the heater core.
stepchyld
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Joined: December 28th, 2004, 1:38 am
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Re: HEATER HOSE

Post by stepchyld »

Then that's the one labeled 'to heater' in the manual I'm looking at.
I'd call it the "heater core inlet hose", but maybe another manual actually provides a name. Wish I had all the manuals!
Has the hose developed a leak? Many places now use bulk hose, cut-to-fit, but you'd be able to get a molded hose from a Mazda dealer.
93 GS, ATX to MTX swap, chrome 16x7, upper strut bars, SRD LCA bushings.
Upcoming improvements: Tokico/Eibach struts/springs, energy suspension LCA bushings
94 RS MTX, Engine swap completed, ALIVE Again!
95 RS ATX, parts car/project X
pdoan_98
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Re: HEATER HOSE

Post by pdoan_98 »

Yes the heater has a small leak in it and the fluid is streaming out. I am going to replace it this weekend. I will update and let you guys know what the hose is called from my local parts dealer.

Thanks for all the help.
stepchyld
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Joined: December 28th, 2004, 1:38 am
Location: E OK

Re: HEATER HOSE

Post by stepchyld »

Coolant leaks are the worst, mainly due to how detrimental they can be.
It's cool that Mazda used quick-connect fittings on the heater core end of both those hoses, yet you can replace the hose itself and reuse the quick connect coupler. It's a little tricky to disconnect the fitting, but easier than wrestling the hose off the fitting in that spot.
Good luck with it!
And, yeah, let us know what they call it, I'm curious...
93 GS, ATX to MTX swap, chrome 16x7, upper strut bars, SRD LCA bushings.
Upcoming improvements: Tokico/Eibach struts/springs, energy suspension LCA bushings
94 RS MTX, Engine swap completed, ALIVE Again!
95 RS ATX, parts car/project X
pdoan_98
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Posts: 45
Joined: December 20th, 2009, 12:58 pm
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Re: HEATER HOSE

Post by pdoan_98 »

I replaced the hose....It was called "heater hose to pipe, cut to fit." In fact the parts store I went did not have it in stock. Luckily my brother was able to find one that matched it somewhat close and it is now replaced.

Thanks for all the help.
stepchyld
Regular Member
Posts: 225
Joined: December 28th, 2004, 1:38 am
Location: E OK

Re: HEATER HOSE

Post by stepchyld »

Glad you were able to fix it!
And before the weekend, right on
93 GS, ATX to MTX swap, chrome 16x7, upper strut bars, SRD LCA bushings.
Upcoming improvements: Tokico/Eibach struts/springs, energy suspension LCA bushings
94 RS MTX, Engine swap completed, ALIVE Again!
95 RS ATX, parts car/project X
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