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Old 07-30-2016, 01:49 PM   #1
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986 B4 fuse blowing

Hi, I did search on this but came up short.

That said I think my car may have one

I have a 986 2002 S and long story short is the fans stopped working. I also get the slow blink in the temp gauge when car is stopped in traffic (hot where I live). Replaced the 15a fuse @ B4 which was blown. Fans worked again for a short period and the fuse blew when right rear engine compartment fan was running. When I say short I am talking like 90 seconds.

Any suggestions as to next step? Can I replace the 15a with a 20a? Or will that create a flaming heap or guarantee a new short circuit because I will burn up the wiring?

Thanks in advance, Joe in Atlanta
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Old 07-30-2016, 02:01 PM   #2
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Definitely DO NOT put a 20A fuse in there!!! First thing I'd do is reach up into the fan exhaust and make sure the fans rotate freely with no wobble. There is probably a problem with your fans and one or both may need to be replaced. You may want to search fan replacement. I believe someone on here had some wiring melt???

Found the thread. Post #9.

http://986forum.com/forums/general-discussions/29567-electical-burning-smell.html

Last edited by 911monty; 07-30-2016 at 02:32 PM.
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Old 07-30-2016, 06:08 PM   #3
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Quote:
Originally Posted by 911monty View Post
Definitely DO NOT put a 20A fuse in there!!! First thing I'd do is reach up into the fan exhaust and make sure the fans rotate freely with no wobble. There is probably a problem with your fans and one or both may need to be replaced. You may want to search fan replacement. I believe someone on here had some wiring melt???

Found the thread. Post #9.

http://986forum.com/forums/general-discussions/29567-electical-burning-smell.html
Thanks. When it runs before the fuse blows the engine fan (blower fan on passenger side) sounds strange so my next step is to replace it.

Anyone have guidance on this? Is it easily accessible from the top with engine bay cover removed etc.?
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Old 07-31-2016, 09:53 AM   #4
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Fyi, this is very, very easy to remove. Pop open engine bay, one 10mm bolt and unsnap the cable and it comes right out. Again this is in the engine bay right behind the passenger.
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