if your ac fan relay is bad on a 96 ford contour will it make the electric fan not work at all even if the ac isnt on because the fan works when connected direct but wont unless. and i have changed the temp sensor that controls the fan and the water coolant sensor that controls the gauge and checked my wiring in between and its all good so im confused on why my fan wont turn on unless connected direct or unless you unplug the temp sensor and it reads fail safe mode and kicks on
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i am sorry, there is no fail safe mode. when you disconnected the coolant temp sensor, the temp went to 300 degrees. when the pcm saw that, it thinks the engine is overheating and turned on the fan to try to cool it down. it was doing its job.
i suggest changing the thermostat first to give the correct temp to pcm for operation.
on the ac side, you need at 150 lbs on the high side to turn on the fan, if your fren is low and cannot get to 150 on high side, then the fan will not work.
Roy
