rgorke
Dedicated LVC Member
To start, my car is not overheating! All of the cooling system parts have been replaced at least twice over the life of the car.
My question relates to the functioning of the cooling fan, the A/C system, and cooling temp. I periodically connect my iPhone to the car through a Bluetooth OBD2. This allows me to do multiple things like check any codes that pop up, monitor fuel trims (if I get a lean code), and monitor coolant temp.
This morning, I was driving into a parking spot at work and connected my iPhone . As I was sitting in the spot, the coolant temp was 217. Since it is in the 50s here in SoCal, I did not have the A/C on. I turned on the A/C and watched the temp drop from 217 to 208 within a minute or so. I then turned off the A/C and watched the temp climb back to 215 in 30-40 seconds or so.
I do know that when the A/C is on, the fan engages to pull air through the condenser also pulling air through the radiator. A while back, when I was overheating due to a cracked degas bottle, the fan was going full bore.
Does anyone know at what coolant temperature the fan activates? I seem to recall there is a graduated fan activation based on temperature, could this be altered for the fan to come on at a lower temp? All of this stems from my dad's paranoia of cars overheating...I suppose the apple doesn't fall far from the tree. I would think that this is right up joegr's alley, but I haven't seen him around for a while.
My question relates to the functioning of the cooling fan, the A/C system, and cooling temp. I periodically connect my iPhone to the car through a Bluetooth OBD2. This allows me to do multiple things like check any codes that pop up, monitor fuel trims (if I get a lean code), and monitor coolant temp.
This morning, I was driving into a parking spot at work and connected my iPhone . As I was sitting in the spot, the coolant temp was 217. Since it is in the 50s here in SoCal, I did not have the A/C on. I turned on the A/C and watched the temp drop from 217 to 208 within a minute or so. I then turned off the A/C and watched the temp climb back to 215 in 30-40 seconds or so.
I do know that when the A/C is on, the fan engages to pull air through the condenser also pulling air through the radiator. A while back, when I was overheating due to a cracked degas bottle, the fan was going full bore.
Does anyone know at what coolant temperature the fan activates? I seem to recall there is a graduated fan activation based on temperature, could this be altered for the fan to come on at a lower temp? All of this stems from my dad's paranoia of cars overheating...I suppose the apple doesn't fall far from the tree. I would think that this is right up joegr's alley, but I haven't seen him around for a while.