SUPRALEE46 Posted September 28, 2015 Share Posted September 28, 2015 I've just replaced the heater matrix and plumbed everything back in....but it still only blows out cold air, can anyone help me out as to want might be wrong and how to fix it? Quote Link to comment Share on other sites More sharing options...
Richie_k83 Posted September 28, 2015 Share Posted September 28, 2015 Possible Airlock? have you jacked the front end up as far as possible and run it up with the Rad Cap off? This should allow the air to escape.... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 28, 2015 Share Posted September 28, 2015 Is the air mixing flap working properly? I can't recall if the JZA80 has a water valve, if it has, is it opening? Are bothe bulkhead pipes to and from the matrix getting properly hot? If not, suspect a none opening water valve, (if fitted...). Quote Link to comment Share on other sites More sharing options...
SUPRALEE46 Posted September 28, 2015 Author Share Posted September 28, 2015 ok cheers for the tip I will try it later jacked up with the cap off...how long should I let it idle for? Quote Link to comment Share on other sites More sharing options...
The Raven Posted September 28, 2015 Share Posted September 28, 2015 There is a a lever on the passenger side that opens and closes when heat is called for. You can see it and hear it. Check thats working and or you heating controls are working Quote Link to comment Share on other sites More sharing options...
SUPRALEE46 Posted September 28, 2015 Author Share Posted September 28, 2015 There is a a lever on the passenger side that opens and closes when heat is called for. You can see it and hear it. Check thats working and or you heating controls are working cheers ...do you have a photo of it? Quote Link to comment Share on other sites More sharing options...
stevie_b Posted September 28, 2015 Share Posted September 28, 2015 cheers ...do you have a photo of it? Here you go: http://www.mkivsupra.net/vbb/showthread.php?49871-Heater-Maximum-Output-Temperature-Too-Low/page2 Post 16 contains everything you need. Quote Link to comment Share on other sites More sharing options...
SUPRALEE46 Posted September 29, 2015 Author Share Posted September 29, 2015 Possible Airlock? have you jacked the front end up as far as possible and run it up with the Rad Cap off? This should allow the air to escape.... :d cheers this worked perfect nice hot air again ready for winter :d Quote Link to comment Share on other sites More sharing options...
Richie_k83 Posted September 29, 2015 Share Posted September 29, 2015 Great news! Happy to help Quote Link to comment Share on other sites More sharing options...
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