Quote:
Originally Posted by warmkop
i drained the powersteering and bled it with new fluids.
oem fan shroud is still in place.took the thermostat out thought it was the fault but it was not that.thermostat is still out. I looked in the TSRM but they dont say anything how to test the fan.
Wen i drive normally the heat gauge is half as soon as i boost her the heat goes up wen i drive normal again the heat goes down.
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If I were to guess, it's more likely to be the water pump. However, I agree the fan is a possible suspect as well. At this point, I'd say swap out the fan and if that doesn't fix it maybe Toyota will take it back. Either that, or maybe you can find another MK4 owner that will let you swap his fan for a test...