rear heater

[large]

hi my rear heater just blows cold any ideas on whats up before i start to pull the thing to bits

[nero279]

Tried burping the cooling system? Put all the heaters on full, and run the engine with the rad cap off, topping up as necessary, get's the air out the system.

[large]

hi just flushed the cooling ands the fronts ok any idea on how the back works is it the same as the front ie hot water going to the back

[nero279]

Yeah i think so, although my rear heater always gets hot quicker than the front. #if it's just been flushed it might point to an airlock in the system, i'm sure there's a proper tech article on burping it somewhere, but i couldn't find it.

[stormforce]

were the rear heaters working b4 you flushed the system if so then you will need to carry on burping the system.Have front and rears on hot and full power and carry on topping up when needed.
If they were'nt working b4 then you will need to strip the rear down and give that a good flush thru also.

[large]

dont think they were working but not sure as i flushed it as soon as i got it any idea whats its like to strip down

[stormforce]

dont think they were working but not sure as i flushed it as soon as i got it any idea whats its like to strip down

I havent had to do it my self but i think you will have to take the centre consol out and disconnect the pipes going into the heater in order to give it a good clean out.Also you will want to do the pipes going to/from the heater as these may well be clogged also.You may be able to see the pipes going into the heater from under the truck unless they run thru the consol.

[stormforce]

heres a link for the rear heater
http://www.hiluxsurf.co.uk/forums/showthread.php?t=7465

[large]

thanks will have a look and let you no how i get on

[stormforce]

if you scroll down to the bottom of this page you will find some more links for the rear heater

[MattF]

If you need to flush the rear matrix, the coolant hoses for that run from the two u-shaped matal bends on the coolant pies in the engine bay, underneath the vehicle to the matrix. If you look at the two coolant pipes running infront of the timing belt cover on the engine, follow those towards the passenger side. Where you find the two u-bends that connect the hoses to the block, there are a couple of smaller pipes branching off those u-bends. They are the feed/return for the rear matrix.

[Antshiel]

If you need to flush the rear matrix, the coolant hoses for that run from the two u-shaped matal bends on the coolant pies in the engine bay, underneath the vehicle to the matrix. If you look at the two coolant pipes running infront of the timing belt cover on the engine, follow those towards the passenger side. Where you find the two u-bends that connect the hoses to the block, there are a couple of smaller pipes branching off those u-bends. They are the feed/return for the rear matrix.

If you have a compressed air line to hand, remove the rear of the two pipes (as Matt described above) it will pay you to remove the air box, makes the job a lot easier. Insert an air trigger, blower into that pipe and then remove the other pipe. Hold the open end pipe (the 2nd one you removed) down and away from you and pull the trigger. Any $h1t will be blown from the system and will come from the open pipe, do this until only air comes through the pipe. Then top up the system and burp it if required. Remember to have both front and rear fans set to hot.

[large]

thanks will give it ago

[Vagrant No2]

If I remember someone chopped the brake cable off their kids bike and put it in an electric drill and fed the cable through the pipes and spun up the drill . The cable cleaned out all the muck and silt from the pipes .
I dont know if his kid suvided the bike crash the next day though (lack of brakes apparantly)

[Chillitt]

its probably worth pulling the flexi pipes on the back end of the heater pipes before using an air line on it. then you can clean out each pipe and the heater itself seperately. i tried doing mine all in one go and ****ed one of the hoses up...