Manage Your Heat!!! Manage Your Heat!!! Manage Your Heat!!! Manage Your Heat!!!

[eahockeygod]

MANAGE YOUR HEAT!!! MANAGE YOUR HEAT!!! MANAGE YOUR HEAT!!! MANAGE YOUR HEAT!!!

MANAGE YOUR HEAT GEO METRO FANS!!!


The best thing you can do for the Geo Metro is install a switch to the fan. The Geo Metro has heat problems when sitting in traffic or idling in summer. The result is a progressively weaker engine and increasingly higher HC levels, ultimately leading to failed smog checks.
The temperature level programmed in the ECM that switches on the fan is so high it damages the engine during sensitive use, so override the computer by installing a switch and using it when in traffic or even around town in summertime. Just find a power source and run it through the switch to the fan coupler.
It is important that you are vigilant with the switch. If you are a start-and-go type of driver who would be apt to neglect the switch I would recommend the following two heat treatments as well:


Run the heater constantly, including in the summer.
If you put the heater on defrost with the windows rolled down the heat goes out the corner of the window. You won't even know it is on. This is crucial for managing heat, important especially at freeway speeds which could damage the fan motor if on, since it spins the opposite direction.



180 degree thermostat.
Install a 180 degree thermostat. It doesn't affect performance and gives an additional measure of protection.

[geojim]

Sorry, but I think you are wrong. Never had a heating, over or under, problem in my Metro and it currently has 316K miles on it, and I run it every day.

If your cooling system is clean and there is no restriction in the radiator, block or hoses, and the thermostat is working, then you do not need to do anything else.

Stay with the factory configuration, and find the root cause of the problem if you are over or under heating...

[Geogriff]

Originally Posted by geojim

Sorry, but I think you are wrong. Never had a heating, over or under, problem in my Metro and it currently has 316K miles on it, and I run it every day.

If your cooling system is clean and there is no restriction in the radiator, block or hoses, and the thermostat is working, then you do not need to do anything else.

Stay with the factory configuration, and find the root cause of the problem if you are over or under heating...

Have to agree with with Jim, A geo metro has to get to 190 degrees for the ECU to properly distribute fuel. Cold engine causes loss of gas mileage. Geo fan temp sensor mounted in the thermostat housing is very reliable. If you have a heating problem it is a cooling system problem like a water pump,radiator,thermostat.

Fan will come on when the temp sensor says it's 195-210. Check radiator with for obstructions, bent fins.Themostat 190 (factory) clean temp probe while replacing thermostat. If system is dirty the probe cannot read the actual temp & will/can cause it to turn fan on after it gets too hot. Just my 2 cents. Have a good one

[movin2stereo]

I agree with these guys.If your system is working leave it alone.You had this post up before,give it up.