liss Posted October 20, 2013 Posted October 20, 2013 Hello all! It has been roughly 30 mins now I've been on the phone tying calm down my girlfriend who had broken down in her glanza v! I was wondering if someone could throw some suggestions at me as to what the problem is? In the 3-4 months we have owned the car we have not had any type of overheating problem except the coolant problem we know about where as (I think) coolant may be leaking into the heater matrix causing it to fog up the windscreen every time the heat is applied! As far as the engine temperature goes the other day we noticed that the car had low oil & coolant. We gave the car an oil change and topped up the coolant with some premixed stuff from a motorfactor. Now the car is over hearing after putting in the correct amount of coolant? She has only driven 20 miles for this to do so? When the coolant was low we went all the way up to silverstone with no problems. She is now claiming that the coolant looks muddy.... Can someone please dismiss my fears of a head gasket crack?!? If anyone could give some advice we would be very grateful!! Quote
RobSR Posted October 20, 2013 Posted October 20, 2013 When does it start to overheat? When standing? Cruising? When booting it? Could be lucky and its only a sticky thermostat, but if its been driven low on coolant it could be HG issues... Quote
liss Posted October 20, 2013 Author Posted October 20, 2013 It was while driving normally with very little boost. Quote
RobSR Posted October 20, 2013 Posted October 20, 2013 For the sake of a thermo id change that, if still no joy, compression test and see what that says. Quote
liss Posted October 20, 2013 Author Posted October 20, 2013 Ill give it a go! They hard to change? Quote
liss Posted October 21, 2013 Author Posted October 21, 2013 The passenger side footwell is soaked so we got the RAC out and they said the heater core is leaking. I've researched and it seem like this may be the answer. Does anyone have a guide as to how to replace the heater matrix? I.e. taking out the dash. Thanks guys Quote
redz11 Posted October 22, 2013 Posted October 22, 2013 its a dash out job, (you can always disconnect the pipes that go into the heater matrix from the engine bay and run no heater for now, it`ll be a bit cold though) my advice, take pictures of everything youve taken off and the position they were in, also dont break your heater control cables I changed mine myself, it was quite a task lol shop around for a new heater matrix as theyre quite expensive from toyota, I think I paid around £70 for a new one from a lad on here a fair few years ago Quote
liss Posted October 22, 2013 Author Posted October 22, 2013 I've done the bypass for now but I don't think I want to drive around for too long without warmth! I've contacted tuning developments and they have one for me. I'm just hoping it'll be in good condition but I'll ask them if I can return it if it doesn't work. How long did it take to get the dash out? I'm thinking I'm gonna need a whole day :/ Quote
redz11 Posted October 22, 2013 Posted October 22, 2013 A whole day should be enough to all east get the unit out and fit it again, just be careful when removing the controls and various cables/metal connectors that connect to the box the matrix is sat in. It took me around a day and a half to do. Quote
Turk Posted November 8, 2013 Posted November 8, 2013 Change the heater matrix if that doesnt help I recon it could be the water pump Quote
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