Quote:
Originally Posted by HighPlainsDrifter
Hi,
The temp should not rise to boiling! You should be able to drive with no fan on at 185 to 195*, put fan on when you slow down. I would replace the thermostat with a 180* one and burp all the air out of system. As for the fan, turn on fan and put a kleenex in front of rad and see if the fan is pulling air through rad or if they wired it reverse. try a 40 amp fuse as the amperage will spike when turned on.
Perry
PS; if the fan is blowing air forward instead of through rad the fan motor will labor in the wind and cause higher amperage draw and blow the fuse.
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Thanks. The fan (one single fan) in my car is installed on the engine compartment-side of the radiator. The fan is pulling air and confirmed this by simply using a small microfiber towel to check air flow direction. The fan is directing the air correctly. Replaced the fan switch (thermistor) with an "upgraded" version as recommended by BDR. That didn't work. Jumpered the wires to the fan switch and the fan ran all day...WITHOUT the engine on. Once I started the motor, and the engine got up to normal operating temp, the fan circuit fuse will blow consistently.
With regards to putting a 40A fuse in vice 30A...never a good idea. The fuse is blowing for a reason not related to the amount of amperage running through the system. BDR tells me it is a 30A circuit and I measured it as such. The problem of the fuse blowing appears to happen when it gets to operating temp. Makes me think it is heat related...somehow?