Cynos ( Tercel / Paseo also ? ) heater matrix question

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Cynos ( Tercel / Paseo also ? ) heater matrix question

Postby markoneswift » Mon Jun 24, 2013 12:28 pm

Hi everyone - the heater output on my Cynos B is crap. On a frosty morning like today, it takes AGES to get rid of the condensation / frost on the screen. What are the common issues with these ? I'm assuming it could be blocked ( is this common ? ) but I'm assuming it is connected as the firewall pipes are in place but one gets hot and the other only luke warm. The thermostat has been checked and coolant levels are all good.
Would back-flushing and forward flushing with a hosepipe work ? If not, what's the matrix like to get at for removal ? Thanks again
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Re: Cynos ( Tercel / Paseo also ? ) heater matrix question

Postby sergei » Mon Jun 24, 2013 1:29 pm

markoneswift wrote:Hi everyone - the heater output on my Cynos B is crap. On a frosty morning like today, it takes AGES to get rid of the condensation / frost on the screen. What are the common issues with these ? I'm assuming it could be blocked ( is this common ? ) but I'm assuming it is connected as the firewall pipes are in place but one gets hot and the other only luke warm. The thermostat has been checked and coolant levels are all good.
Would back-flushing and forward flushing with a hosepipe work ? If not, what's the matrix like to get at for removal ? Thanks again


probably blocked, check if the valve on the firewall is opening fully.
replacing is pain the ass.
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Postby Alex B » Mon Jun 24, 2013 2:33 pm

Turn on AC if you don't already, removes condensation 100x faster.
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Postby markoneswift » Mon Jun 24, 2013 4:36 pm

Alex B wrote:Turn on AC if you don't already, removes condensation 100x faster.


It sure does, but not ice from the outside AND the inside ! I need to get the heater working I think :-) Brrrrrr......
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Postby 85AW20v » Mon Jun 24, 2013 11:09 pm

Hands on the inside palm on the screen helps to melt the frost quicker. Once you the melt started it doesn't take long. Or else start the car 10 minutes before you want to leave with the heater on full hot and full fan but blowing into the car not on the screen then everything will defrost not just the screen.
See ya

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Postby markoneswift » Tue Jun 25, 2013 8:52 am

85AW20v wrote:Hands on the inside palm on the screen helps to melt the frost quicker. Once you the melt started it doesn't take long. Or else start the car 10 minutes before you want to leave with the heater on full hot and full fan but blowing into the car not on the screen then everything will defrost not just the screen.


Thanks for the tips mate but I come from England where we have real ice and -10 temps in winter so I know how to deal with it. The problem I have is that the heater is crappper than crap and if I leave the car running it really doesn't have much effect. The only way I can get some heat out of it is to drive it for a bit and even then it's rubbish !!
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