Replacing radiator - other hoses etc.

[Ghostrider]

Is there a complete list of coolant related hoses (maybe with part #'s) to buy when replacing radiator. I don't have rear heat so I am guessing
1. Upper/Lower hoses
2. heater hoses
3. Some hose that warms up intake manifold
4. Hoses that connect back to transmission

Also is the thermostat a Toyota specific or will any thermostat from auto parts store work?

 

[thegipper]

Use an OEM thermostat, not a generic one. Also, make sure the jiggle valve is at the 6 o'clock position and use a new gasket.

There are no coolant hoses that go to the transmission but there are the ATF lines that run up to the radiator/tranny cooler.

Get yourself one of those ratcheting hose clamp tools for the rear heater hoses that are up against the firewall. They are a nightmare to get to.

One last thing, there are a couple coolant hoses that go to the oil cooler near the oil filter. You could replace those as well if you'd like.

 

[mtbtim]

My question is do you really want to mess with the heater hoses if you don't have to? It makes sense to renew the radiator hoses and thermostat when swapping out a radiator, but adding in the heater hose replacements and renewing the transmission cooler lines is something most people don't do. I'm guessing there's lots and lots of guys driving around rigs with 300k+ miles on the original heater hoses and trans cooler lines and they're fine.

If you indeed want to replace all of them, you're missing one from your list. There's the hose that runs from the driver side of the water pump to the oil cooler bolted to the driver side of the engine block. When you take the water neck off that houses the thermostat, you'll see the hose I'm talking about.

I think you're creating a lot more work for yourself but maybe I'll live to eat my words if a heater hose ruptures on me while I'm out in BFE (Bum F*ck Egypt).

 

[3bears]

a long while back someone posted a list of all the hoses Sorry I don't have it.If someone does again that would be good to add to the sticky threads on repairs etc.
the oil cooler ones are a pain in the arse to get to, at least with me and my clumsy hands.. There are a couple of small ones that run up and under the throttle body to the ICV

Also from what I have read....the heater control valve gets brittle with age. So taking off the heater hoses that go to it MIGHT lead to another part to buy. and in those threads Ive read aftermarket ones are short life

 

[gamefreakgc]

Leave the heater hoses that go into the heater core in the cab alone. Those are the ones that go from the back of the engine to the firewall. Reason being is that the valve itself likes to crack when you remove the hose off of it, making a simple repair an expensive one. I've pulled several engines and that valve cracks about half the time, so it's a flip of a coin if yours will too. Those hoses rarely leak.

Definitely replace the upper and lower radiator hoses and try to use/sources the OEM tension clamps if you can. The screw/worm clamps tend to deform the hoses pretty fast and makes them leak faster. The oil cooler hose coming off the water pump (if you have one, not all do) is also a common leak spot so worth changing that one.

If you are really bored there's also the coolant hoses going through the throttle body. But not really any point to doing those since unless you live in an area with cold winters they can be bypassed completely. Been running that way for years.

 

[plcfcng]

Those hoses for the trottle body are different on the 96-2000 than the 2001-2002. The hoses for the aux heater core on some models can be done with stock heater hose I don't recall the size if you have a aux heater core there are two hoses under the car to the right of the Transmission. As mentioned before be sure to do the ones for the oil cooler and replace the heater valve. I did all of my hoses on my rebuilds why do all the work and risk not changing a 6 dollar hose and lose a engine.:dance: