Still No Heat!!!
#1
Still No Heat!!!
Hello all.
2002 Discovery II SE 155k
Truck has no heat.
I've replaced the:
Thermostat, Water Pump, Engine Temperature Sensor
I've flushed the:
Radiator, Heater Matrix
Bleed the System and still no heat. Any Ideas what I've missed or should look at next to get some heat back to the truck?
Thanks,
Matt
2002 Discovery II SE 155k
Truck has no heat.
I've replaced the:
Thermostat, Water Pump, Engine Temperature Sensor
I've flushed the:
Radiator, Heater Matrix
Bleed the System and still no heat. Any Ideas what I've missed or should look at next to get some heat back to the truck?
Thanks,
Matt
#4
No waterfall sound?
You may have a control issue with the heating control panel.
When you move it to HI - would think it will move valves and air vanes to give you heat.
There is a little air fan that measures heat in the cabin of the truck.
If that is dead... how would it affect the heat?
As it samples the air.
This is above my experience level and I admit it.
As a last resort - try my hack bleeding method.
Unclip the coolant bottle.
Put it up high.
Put a roll of shop towel below it to hold it up high.
Take OFF the cap.
Run the truck at 1,200 RPM for about 10 minutes.
The level will go DOWN if air is bleeding out.
Fill it to a little below the COLD line.
Put the lid on.
Put the bottle back.
Check for heat.
You may have a control issue with the heating control panel.
When you move it to HI - would think it will move valves and air vanes to give you heat.
There is a little air fan that measures heat in the cabin of the truck.
If that is dead... how would it affect the heat?
As it samples the air.
This is above my experience level and I admit it.
As a last resort - try my hack bleeding method.
Unclip the coolant bottle.
Put it up high.
Put a roll of shop towel below it to hold it up high.
Take OFF the cap.
Run the truck at 1,200 RPM for about 10 minutes.
The level will go DOWN if air is bleeding out.
Fill it to a little below the COLD line.
Put the lid on.
Put the bottle back.
Check for heat.
#6
#9
Ok,
I started the truck up and let er run for a bit. Dashboard temp reads 50%. Hose on the top right of the thermostat is hot, Left, not so much. I didn't feel any heat on the heater matrix hoses, they seem cold, but could feel the pressure built up in them as the engine ran. I don't have a way to check the temperature of the different hoses other than by touch.
Once the temperature rises, coolant begins spewing out of the small hose at the coolant tank that runs to the radiator.
Bad Stat? Bad Pump? I'm lost.
I started the truck up and let er run for a bit. Dashboard temp reads 50%. Hose on the top right of the thermostat is hot, Left, not so much. I didn't feel any heat on the heater matrix hoses, they seem cold, but could feel the pressure built up in them as the engine ran. I don't have a way to check the temperature of the different hoses other than by touch.
Once the temperature rises, coolant begins spewing out of the small hose at the coolant tank that runs to the radiator.
Bad Stat? Bad Pump? I'm lost.
#10
Ok,
I started the truck up and let er run for a bit. Dashboard temp reads 50%. Hose on the top right of the thermostat is hot, Left, not so much. I didn't feel any heat on the heater matrix hoses, they seem cold, but could feel the pressure built up in them as the engine ran. I don't have a way to check the temperature of the different hoses other than by touch.
Once the temperature rises, coolant begins spewing out of the small hose at the coolant tank that runs to the radiator.
Bad Stat? Bad Pump? I'm lost.
I started the truck up and let er run for a bit. Dashboard temp reads 50%. Hose on the top right of the thermostat is hot, Left, not so much. I didn't feel any heat on the heater matrix hoses, they seem cold, but could feel the pressure built up in them as the engine ran. I don't have a way to check the temperature of the different hoses other than by touch.
Once the temperature rises, coolant begins spewing out of the small hose at the coolant tank that runs to the radiator.
Bad Stat? Bad Pump? I'm lost.
Last edited by humroot; 02-27-2013 at 04:48 PM.