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Old 09-02-2013, 12:51 PM   #1
19Echo
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50 Amp fuse keeps blowing

Needing a little help.

I replaced the alternator yesterday and remounted my fan. The car started over heating and I found out the fan wasn't coming on. After checking all the fuses, I finally found the 50 amp blown. Thought it was a quick fix but when I replaced it, the new one blew as soon as I made contact. Same with the one after that.
I should also mention that the car dies as soon as I put on the AC and I believe I may have isolated the problem to the Idle Air Control Valve.

Its a 2003 SE 2.0

Any help would be appreciated it.


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Old 09-02-2013, 06:47 PM   #2
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Do fan motors work when powered up by jumper from battery say? Bad motor(s) would pop fuse, or wiring to them. You got a short somewhere.
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Old 09-02-2013, 07:39 PM   #3
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Thanks for the reply.

I did look at the blower resistor that was in the middle of the fans. The resistor looked fine but the plug was burnt out. I did replace both resistor and plug from O'Reilly's. The configuration was a little different but I got it on.

After replacing, I started the car and let it run for 20 minutes. Yeah... sure enough the needle went past the half way point and no fan came on.

I did use a jumper wire and yes the fans came on with it connecting straight to the battery.

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Old 09-03-2013, 11:12 AM   #4
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Quote:
Originally Posted by 19Echo View Post
I did look at the blower resistor that was in the middle of the fans. The resistor looked fine but the plug was burnt out. I did replace both resistor and plug from O'Reilly's. The configuration was a little different but I got it on.
This is probably your problem. look at everything you changed here. And don't jumper the fuse again. A blown fuse is in indicator of a problem, not the problem, so solve whatever is causing the blown fuse, or you have the potential to do more damage. Fuses are designed to protect circuits from drawing to much power, so when they blow, you really don't want bypass that protection. I would look at the wiring on the new plug and resistor. Perhaps something got crossed.
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