GS 400 not reaching operating temp ?
#1
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GS 400 not reaching operating temp ?
So where I live it tends to be very cold. It's about - 20 degrees Celsius. But anyways my car doesn't seem to heat up completely. The only time the needle has hit the middle of the gauge is after sitting there idling with no heat on. My coolant level is good to. Could this be a thermostat problem ? Or could it be because the weather causing the car too cool down to much ?
#2
Pole Position
So where I live it tends to be very cold. It's about - 20 degrees Celsius. But anyways my car doesn't seem to heat up completely. The only time the needle has hit the middle of the gauge is after sitting there idling with no heat on. My coolant level is good to. Could this be a thermostat problem ? Or could it be because the weather causing the car too cool down to much ?
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#4
Pole Position
#6
Normal should be midway on the gauge, like the 9 o'clock position.
I would look at the thermostat first. You can take it out and boil it and measure the water temp it opens at. Make sure to refill coolant with proper Toyota red fluid.
I would look at the thermostat first. You can take it out and boil it and measure the water temp it opens at. Make sure to refill coolant with proper Toyota red fluid.
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#8
Mine sits dead on in the middle and stays there when in normal op temp. I had the same problem the OP had until I replaced the t-stat. That needle should never move from the middle (9 o'clock position) when in normal operating temp. Gas mileage will suffer because the engine is in open loop longer trying to warm up.
#11
Knowing what I know on oil viscosity and relationship to temp, I would leave the stock thermostat in. The difference isn't going to be much if anything, the biggest improvement would be if you could keep it from getting over thermostat temp on a hot day, it will drop performance then as the ECU will pull out ignition timing.
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