Quote:
Originally posted by shadowblue89
Not trying to step on someone's toe's but if you guys have a problem where it is hard to start your car because the fan is on I would look at something else. You might have a battery thats just not strong enough anymore or your starter is drawing too much amperage.
The only reason I say this is because my electronic thermostat that kicks on my fan died so I wired it up direct to the rear defroster switch(i have no defroster but had spare switch that I modified) for when the key is turned forward the fan comes on. I also live where the temperature outside is already getting around 100+ degrees and never have a single problem starting the car. My fan is from a Mark VIII and draws around 70 amps just to turn the thing on.
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I too have no problem starting my car when the fan is on. I have a switch that turns my fan on and off, and sometimes I leave the fan on for more then ten min, but when I got to start it, it starts up fine. U might have a weak batt, or a poor ground. Usally it's a poor ground that the problem. try a bigger ground wire and also try to find a new spot on the engine to ground it to. My friend found outhat this was his problem. He bought a new batt, but was still having slow cranks.