Re: Heater Inlet hose
Do you mean you want to distinguish the in-hose from the out-hose or you
don't know which hoses the heater hoses are compared to other types of
As far one versus the other, I'm not sure (I have a 1992). But I do
recommend you get a Haynes manual or some other manual before proceeding.
This will help you with your do-it-yourself work.
For the 1992 models at least, Ford recommends first back-flushing the system
and then flushing the heater core by itself in the OPPOSITE direction. If
this is the same for your model, it is easier if you get two Prestone kits -
one Tee for each hose - and two additional lengths of heater hose - 4 feet
1) After draining the antifreeze, put in both Tees. Attach one of the extra
heater hoses to the pipe thing Prestone gives you to stick into the top of
the radiator. (This makes it easier to capture the water as it comes out of
the top of the radiator and run it into a trash bin or something.) Flush
through the inlet hose - if the inlet is what the manual says (I don't
recall - maybe someone else here know which of the two hoses that is.)
2) Then disconnect both heater hoses from the engine side - to isolate the
engine during the reverse-direction heater core flush. Attach the garden
hose to the Tee and block off the open end. Attach the spare heater hose to
the open side of the outlet hose and run it into your trash bin.
3) Turn on the hose to flush the core.
A couple of points.
I think I DID use a Prestone system flush. I see there are differing views
about whether one should use a chemical flush as opposed to just water.
The only tough part here is figuring out how to capture all that antifreeze
and disposing of it. I used a big plastic trash bin. I caught everything
until the water ran clean for a while. But even then, it took me lots of
trips (over weeks) to my town's recycling center to dispose of the stuff I
collected. It wasn't very green, and I got criticized by the recycling
center attendant who said I was watering down his antifreeze reservoir too
much. But so be it. (By the way, while flushing the system, after the water
ran totally clean, I let it run onto the ground. No way I could have
captured everything. I did put the trash bin back when I flushed the heater
core, and caught a lot of what came out of that.)
Also, I too was changing the thermostat. I decided to remove the old one,
reinstall the cap and flush BEFORE installing the new one. That way I was
sure everything was wide open. If you don't want to bother, I would flush
with the old thermostat so that you don't get junk into the new one.
Ford says to refill with tap water, so I did not use distilled.
In the second flush ... at about 50,000 miles, I also replaced the radiator
hoses. It was hell getting the old ones off - no room to work, and the old
ones were fused onto the pipes. They also were like new.
Enjoy the job. Good luck.
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"tfandango" <email@example.com> wrote in message
> I'm going to replace my thermostat tonight. In addition, I'm going to
> flush the coolant. I've purchased a Prestone Flush Kit to aid me in
> doing so.
> I'm a little nervous, this being my first do-it-yourself job. I want
> to make sure I understand this completely before I begin. I am
> supposed to attach the Prestone Tee to the heater inlet hose. I think
> I know what hose that is, but I'm not certain. Is there a diagram
> somewhere that will help me identify this hose?
> I have a 2000 Exp XLT SOHC (Engine VIN E), or can someone describe
> which hose it is?