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The mkiv Supra Owners Club

Heater blowing warm air only


Spence

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Sorry Spence, that was clearly a comment made without reading the bloody thread.

 

So to get this right, it's not the fact you get warm air from the aircon, but instead that regardless of how hot you set the heating it only comes out warm?

 

If the latter, it could be an air lock? Get the car up to temp and turn the heating on full. Check the two hoses that go into the bulkhead to the heater matrix and see if they are getting hot.

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Hmmm.

 

So you have hot water going in and out.

 

Were they both of a similar temp. When you say hot were they "I can't grab them for too long" hot?

 

My next thought would be a possible motor failure of air con contol ecu or control unit issue. You can do a diagnostic on the air con system which might give us a clue.

 

Let me have a look and get back to you. I'm just getting on a train from Waterloo and will have a look once I'm on the move.

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I have a diagnostic machine so will plug it in in the morning. Pipes were warm but car wasn't up to temp. To be honest I really don't have time to look at it. I own a garage and a hand car wash and we are flat out busy so just after some really quick fixes. I'm bloody freezing lol.

 

I read through a thread about the flaps so that might be an option.

 

Got a load of other stuff gone wrong now as well. O/d and tc lights flashing, belt or pulley making a right racket, alarm going off for no reason, boot struts not holding open boot, dimmer switch doesn't work etc....

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I have a diagnostic machine so will plug it in in the morning. Pipes were warm but car wasn't up to temp. To be honest I really don't have time to look at it. I own a garage and a hand car wash and we are flat out busy so just after some really quick fixes. I'm bloody freezing lol.

 

I read through a thread about the flaps so that might be an option.

 

Got a load of other stuff gone wrong now as well. O/d and tc lights flashing, belt or pulley making a right racket, alarm going off for no reason, boot struts not holding open boot, dimmer switch doesn't work etc....

 

There are no quick fixes for that LOL.

 

Will PM you with the diagnostic procedure which can be done from the control unit in the car, no need for any additional machines.

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belt or pulley making a right racket....

 

check the crank pulley, these can delaminate......it's a common thing......it also drives the water pump and so perhaps if the pulley is really bad and only half turning the ancillaries half spinning on itself it's not providing the water pump with enough 'go' to circulate the coolant as it should?

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check the crank pulley, these can delaminate......it's a common thing......it also drives the water pump and so perhaps if the pulley is really bad and only half turning the ancillaries half spinning on itself it's not providing the water pump with enough 'go' to circulate the coolant as it should?

 

It is the water pump pulley making the noise.

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  • 2 weeks later...
Guest kinkydeviltom

Let me know how u get on, i have this same problem but i think mine is the heater control as when i turn the temperature down nothing happens and im sure theres a rod that is suppose to move wen u turn the temp control under the dash passenger side, pm me if u have and luck

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Let me know how u get on, i have this same problem but i think mine is the heater control as when i turn the temperature down nothing happens and im sure theres a rod that is suppose to move wen u turn the temp control under the dash passenger side, pm me if u have and luck

 

Mine makes a noise but I still reckon something's up.

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Guest kinkydeviltom

Have a look under the passenger side footwell closest to the centre and look up, find the silver rod and see if it moves wen u turn the temp control

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Have a look under the passenger side footwell closest to the centre and look up, find the silver rod and see if it moves wen u turn the temp control

 

That's what I was going to have a look for its just having the time to do it. Is that what was wrong with yours?

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