How to open up the valve in the heater core to do a coolant flush
#1
How to open up the valve in the heater core to do a coolant flush
Hi Guys:
Am planning to do a coolant drain/flush according to directions from the motorvate guy's link. Does anyone know hot to open the valve in the heater core in a 2001 max ? The directions he gave on his link was for a 4th gen.
Thanks. Cheers.
Am planning to do a coolant drain/flush according to directions from the motorvate guy's link. Does anyone know hot to open the valve in the heater core in a 2001 max ? The directions he gave on his link was for a 4th gen.
Thanks. Cheers.
#2
I think the simplest way would be to turn up the heat to max while you are doing it and that would open the heating system. You can run it for a minute or two with no danger of overheating providing that the car is cold...
#7
Originally Posted by cobalt416
so just turn the auto climate to max, and run the heater for 10 mins ? without the engine on, i assume, just the fan, rite ?
#8
coolant change
a while back i used this procedure to change my coolant. Its a write up on the Motorvate.com site.
Partiall copy of write up;
Automatic Climate Control
If you have the Automatic Climate option (as shown below) you need to do the following to open the valve in heater core:
Turn the ignition switch from the "OFF" to the "ON" position
With in 5 seconds of being switched "ON" push the "OFF" button on the
climate control for at least 5 seconds.
Press the "HOT" button 3 times
Press the "DEFROST" button 2 times. Code 43 will be displayed.
Wait 10 seconds before switching the ignition to "OFF"
I located it on this site:
motorvate.ca v2.0 - *THE* DIY Maxima Website Please Support motorvate.ca
Good luck!
Partiall copy of write up;
Automatic Climate Control
If you have the Automatic Climate option (as shown below) you need to do the following to open the valve in heater core:
Turn the ignition switch from the "OFF" to the "ON" position
With in 5 seconds of being switched "ON" push the "OFF" button on the
climate control for at least 5 seconds.
Press the "HOT" button 3 times
Press the "DEFROST" button 2 times. Code 43 will be displayed.
Wait 10 seconds before switching the ignition to "OFF"
I located it on this site:
motorvate.ca v2.0 - *THE* DIY Maxima Website Please Support motorvate.ca
Good luck!
#10
years ago I flush my old civic with put the running water hose in the radiator (top in bottom out) and keep the engine run about ten minutes, no sign of temparature rising, maybe I am lucky not mess up the engine, what do u guys think? I might want to try it again on my max
#12
Cobalt,
No i dont have a 'HOT' button - its a dial... I cant recall? but i think your right, after fooling w/some buttons the code appeared in the radio and you could here the remainder liquid trickle out into the draining pan- not much.
didnt have the guts to go after the drain plugs on the engine-figured i got enough
and didnt want to screw anything up!
No i dont have a 'HOT' button - its a dial... I cant recall? but i think your right, after fooling w/some buttons the code appeared in the radio and you could here the remainder liquid trickle out into the draining pan- not much.
didnt have the guts to go after the drain plugs on the engine-figured i got enough
and didnt want to screw anything up!
#15
There is no coolant control valve for the heater core. Coolant is free to flow through the heater core anytime the engine is running. Temperature control of the air is accomplished using AIR control doors/flappers and the mixing of cold air from the evaporator and hot air from the heater core depending on the Mode and temp selected.
#16
IIRC, when I was flushing my coolant out last month if you do the first two steps on the motorvate site a code will appear and then you can adjust three settings by turning the temp **** on the auto climate
Turn the ignition switch from the "OFF" to the "ON" position
With in 5 seconds of being switched "ON" push the "OFF" button on the
climate control for at least 5 seconds.
Except I didn't know what code meant what for the 5th gen, but i could here something opening and closing
Turn the ignition switch from the "OFF" to the "ON" position
With in 5 seconds of being switched "ON" push the "OFF" button on the
climate control for at least 5 seconds.
Except I didn't know what code meant what for the 5th gen, but i could here something opening and closing
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