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  Soarer Central * Air Conditioning and Climate Control * No heat just ice cold air... baahhh Previous Previous    Next Next  

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Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 13
Reg: 06-2008

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 Friday, October 24, 2008 - 04:51 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I have searched for an answer and nothing answers this one!
Hi maybe you guys (girls) can help, I have no hot air, when I turn the heating to hot, on comes the fan and savagely blows cold air, switch on aircon and now freezing cold air even when on hot! When I turn off the aircon the car will not idle - making driving in town a misery as it keeps stalling.
I do get an occasional trickling sound when driving, but there are no leaks. The temp gauge reads normal so no overheating.
I have checked the vsv valve and it opens and shuts when I switch from hot to cold.
So could it be an airlock, if so how do I sort it on a TT, it seems easy on a v8, my wife and daughter refuse to go with me until I sort it (is that a bad or good thing! ) please guys, I really need some help on this one!
Grant Rowan
TryHard
QLD
jzz30 TR44HF

Posts: 252
Reg: 02-2006

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 Friday, October 24, 2008 - 06:45 am, by:  Grant Rowan (Booster13psi) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
It could be a vapour lock or just crap blocking your heater core. I would disconnect the hoses going to the heater core at the firewall and flush it.

With the Idol it sounds like you need a new idol solenoid. When mine died I just manually adjusted up the idol on accelerator cable at the plenum.
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 14
Reg: 06-2008

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 Friday, October 24, 2008 - 07:29 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Thank you I will take a look tomorrow and let you know how I get on..
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 15
Reg: 06-2008

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 Friday, October 24, 2008 - 07:45 pm, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
well today I changed the idle solenoid - no change there, I then disconnected the outlet pipe from the heater and it is flowing fine and getting hot part number 87246e http://homepage.ntlworld.com/noctiluca/Soarer/EXtoyota4/localf~1/download/extoyo~1/wwwelc~1.ru/toyot a/full~122.htm

so if hot water is going through and the fan is blowing well, why am I not getting hot air... gggrrr
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 10171
Reg: 11-2004

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 Saturday, October 25, 2008 - 12:40 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
There is probably an internal vent flap that direct air through the heater matrix or not. Possibly that is stuck. No idea how to confirm that though. :-(
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 16
Reg: 06-2008

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 Saturday, October 25, 2008 - 12:53 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Hi thanks, now that's something I didn't think of, I am off to do some research.....
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 17
Reg: 06-2008

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 Saturday, October 25, 2008 - 04:17 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Cant find any info out there about that, :-( but does anyone know, - the vacuum is moving open and shut when I switch from hot to cold, but the actual black "rubber" cylinder attached to the solenoid does not move, is it supposed to? How do I bleed the matrix?? I have found out how to do it on a V8 but a TT nope???
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 10172
Reg: 11-2004

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 Saturday, October 25, 2008 - 04:22 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
How did you actually test water flow through the heater pipes?

I would remove the radiator cap and hook a hose to one of the heater pipes.

Just a thought, if the engine is hot and you have the heater on, are the pipes going to the heater also getting hot?
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 18
Reg: 06-2008

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 Saturday, October 25, 2008 - 06:23 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
yes the water coming out of the matrix is hot.. should I still do the hose thing?
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 19
Reg: 06-2008

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 Tuesday, October 28, 2008 - 06:40 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I fully understand if you have given up on me.. it is a tricky one
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 10184
Reg: 11-2004

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 Tuesday, October 28, 2008 - 07:02 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Not that, just remote diagnosing/fixing is very difficult.

If you are convinced that hot water is flowing through the heater, then that would only leave a stuck vent flap not allowing air to go through the heater.
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 20
Reg: 06-2008

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 Tuesday, October 28, 2008 - 10:02 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Thanks Peter, yes the water coming out is red hot and under pressure - now how would I go about finding that troublesome flap sounds like it could be an answer?
Nye Phillips
Tinkerer
Montpellier France
2.5 TT

Posts: 21
Reg: 06-2008

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 Tuesday, October 28, 2008 - 10:04 am, by:  Nye Phillips (Nye) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Help, I need a diagram of the heater assembly, any offers???

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