80 series heater hose.

Gday Cruiser,
Funny you mention that little hose......
I am about to go out to the shed and replace mine..... again!
The reason I say again is......a couple of weeks ago the Mrs pulled up in the shed after a trip to town buying supplies for our trip to Palm Valley we were planing in the morning.
She pulls up in the shed and a puddle of water starts to appear on the floor accompanied by the smell of steam...BUGGER!!!!
Yep...that little heater hose at the back of your engine had a hole.........nothing open that night and 4 car loads of people rolling up at my house in the morning.
I managed to find an old one on a wreck and replace it but it was pretty old and perished....I got it on and it has lasted a few weeks, but today Im going to replace it with a new piece.
Trust me.......there isnt an easy way to do it.......just get in and do it. And its going to be a lot easier on a cool motor with a beer in hand and plenty of time to do it in that a steaming hot motor on the edge of the road.
So YES!!! Replace it!!!

LOL

Cheres
Hairy

Hi mate, I'd recommend replacing it before it fails. It is in a tight spot, but it's do-able with some patience and swearing! Having small midget hands would be an advantage.
Check out this write-up l did on mine on another forum.

1FZ-FE Pesky heater-hose replacement

much easier to replace it at home when you have all the tools
and ya not stuck on the side of the road . my prefrence is to replace all the hard to get at hoses before they are buggered and keep the good second hand ones as spares and position all the clamps so you can get a screw driver to them easier . cos the manufacturer doesn,t think of that ,
chers mechpete

There's a great tool to make the job easier. Looks like a screw driver but has a flexible sprung steel shaft. Super flexible and makes relatively easy work of the job.
Failing that, use a 1/4 inch drive socket set with a universal joint on the end. It may pay for you to wrap a bit of electrical tape around the uni joint just to make it less flexible otherwise you'll be forever dropping off the worm drive clamp.

Thanks to everyone who replied.

At 14 years old, 300,000 ks and original hose it seems like I have got a good run out of mine. Maybe it will last forever or on the other hand it may be nearing it's use by date.

Anyway is the hose able to be changed without removing things like the manifold, starter motor etc.

I will put a new water pump on while I am at it but it is this hose that has got me stumped.

Apart from 5000 K services the only parts that have been replaced during the life of the vehicle is a radiator several years ago and last week a set of brake rotors.

Is it any wonder the 80 series has such a good reputation!!!

I have replaced all my heater hoses and put on the clamps with a hex type screw top as well as the normal slot in them.
That way you can use either a small socket or a screwdriver to tighten it up.
Obviously have all the clamps facing up or in a position easy to get a tool onto without having to get under the car if possible.

Many people replace their radiator hoses regularly, but forget about the deterioration of the same type of hose for the heater.

I also had to improvise with some of my heater hoses and use a universal type in a couple of places. My vehicle is 23 years old and Toyota don't list some of the hoses anymore. The ones they do list cost only marginally less than an ounce of gold, but some of them, you have to go genuine.

As others say, it's easier to do the job at home.
Another thing about the heater hose is that you can block them off or bypass them in a lot of circumstances if they burst.
My worry was that if they burst unexpectedly, will I notice it in time to save cooking the motor.

I have a low water alarm, but better to be safe than sorry.

Dave

Do what we do and carry hose joiners so you can bypass the heater if need be.

Funny this is posted today. Came across a fella today that had the same problem while picnicking with his family. Something to think about doing for my self i think, I just replaced two air hoses Friday $195 just for the parts on our cheapy 4.5 that's done 340,000km.