heater hose question??

fish254 · Mar 8, 2009

the two hoses that go to the fire i forgot the order in witch they go some help guys please???

final5-0 · Mar 8, 2009

fish254 said:
the two hoses that go to the fire i forgot the order in witch they go some help guys please???

Seems like one is larger than the other

I believe if you look at things, it will be clear which goes where

Grady

Dino Dino Bambino · Mar 9, 2009

Yes indeed. One hose is 3/4" and the other is 5/8". The larger one goes closest to the passenger side fender.

revhead347 · Mar 9, 2009

It doesn't honestly matter which way the water goes through the heater core. As long as it fits and it doesn't leak.

Kurt

Adam95GT · Mar 9, 2009

revhead347 said:
It doesn't honestly matter which way the water goes through the heater core. As long as it fits and it doesn't leak.

Kurt

one hose regulates pressure or something

divit250r · Mar 10, 2009

Adam95GT said:
one hose regulates pressure or something

One of the factory hoses does have a flow restrictor in it.

On an older F100, we accidentally reversed the heater hoses and you'd have thought the thing was going to blow up. Somehow the reversed fluid path caused the cores in the heater core to vibrate and moan. Strange, I know...

fish254 · Mar 11, 2009

no one really knows the order ha??

final5-0 · Mar 11, 2009

fish254 said:
no one really knows the order ha??

Well ... Yes I know it
and
So do those who have read this thread
and
You too will know it if you look at the two different size hoses

Put the small one on the small barb
then
Put the larger one on the larger barb

If you trace the two hoses you will be seeing it just as Ford
made it available to the public

Just trying to show it is one of those things that can be fleshed
out with a small amount of common sense and a bit of
observation

Grady

99FiveOh · Mar 12, 2009

I wasn't aware of any flow restrictor in Mustangs. I'll be replacing these hoses soon. Is it possible the restrictor is built into the heater pipe on the intake? I've had these hoses off on previous cars and they were just basic rubber hoses.

final5-0 · Mar 12, 2009

The_Mustang said:
I wasn't aware of any flow restrictor in Mustangs. I'll be replacing these hoses soon. Is it possible the restrictor is built into the heater pipe on the intake? I've had these hoses off on previous cars and they were just basic rubber hoses.

Over the years when this subject comes up

I've seen some say they found one in the OEM hose at the firewall
and
I've seen some say they found none in the OEM hose

I did not have one on my little 95GT

I rigged up one by using a small freeze plug with a hole in the middle

Grady

99FiveOh · Mar 12, 2009

nice! I think I have one such freeze plug laying on my work bench, I might rig something up when I install the explorer engine.

revhead347 · Mar 12, 2009

I've never seen a flow restrictor on any of these hoses, and I've worked on a lot of these mustangs. I would say, that if you found a flow restrictor, it's something someone added later on. Either way, the hoses pretty much only fit on one way. If you get them backwards, it's going to look retarded, and one will be too tight, and the other will be too lose. I put a flow restrictor on my bypass hose. I never really saw a point in having a flow restrictor to the heater core.

Kurt

final5-0 · Mar 13, 2009

I've found the plugs in many Ford products over the years

It is my understanding a reduced flow rate takes a bit
of the wear and tear off the heater core

Grady

heater hose question??

fish254

final5-0

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Dino Dino Bambino

revhead347

Apparently my ex-husband made that mistake.

Adam95GT

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Apparently my ex-husband made that mistake.

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