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> Now what? Fuse on relay board blowing., rear fuse that controls fuel pump blowing
Phoenix914
post Dec 30 2007, 05:42 PM
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Last night I tried to start my 914 to move it out of the garage...and it didn't start. When I turned the key, the auxiliary fan came on because the lever was pulled back. I turned off the fan, then proceeded to start the engine and it just cranked. I turned off the key, then turned it to the on position. This was when I noticed the fuel pump didn't come on. Why? During my check I discovered the rear fuse of the two on the relay board in the engine compartment was blown. A little research told me that this fuse is for the fuel pump and aux. fan.

So, I disconnected the fuel pump, put in a new fuse and it blew when I turned the key. Another new fuse, reconnected the fuel pump, disconnected the aux. fan, turned the key and the fuse blew again. It's not the fan. What is causing this? I drove the car in there less than two weeks ago!!

It's strange that the aux. fan came on the first time I turned the key. Now it won't work with the fuse blown.

Somebody please help me. I have to move everything out of this rented garage tomorrow. This includes my 914. I'd rather not have to tow it if that can be avoided.
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Phoenix914   Now what? Fuse on relay board blowing.   Dec 30 2007, 05:42 PM
SirAndy   fix the short ... it's probably the aux. fan...   Dec 30 2007, 05:48 PM
McMark   It's the wire that powers the AAR. It's s...   Dec 30 2007, 05:53 PM
SirAndy   It's the wire that powers the AAR. It's ...   Dec 30 2007, 05:57 PM
Phoenix914   OK. I'll take the switch out. I figured disc...   Dec 30 2007, 05:53 PM
Phoenix914   Cool. Where the heck is it? :(   Dec 30 2007, 05:59 PM
SirAndy   Cool. Where the heck is it? :( red wire, going...   Dec 30 2007, 06:00 PM
McMark   White wire that comes out near the distributor. I...   Dec 30 2007, 06:02 PM
SirAndy   White wire that comes out near the distributor. ...   Dec 30 2007, 06:03 PM
Phoenix914   This is the only pic I have right now, and it soun...   Dec 30 2007, 06:09 PM
McMark   Andy, it might be red on the early cars. The AAR ...   Dec 30 2007, 06:16 PM
Phoenix914   Ok, thanks. I'm off to see if I can fix it. ...   Dec 30 2007, 06:23 PM
Spoke   You could try removing both relays for the fan and...   Dec 30 2007, 07:14 PM
Jeff Bowlsby   Its a red wire coming out of the AAR (all years), ...   Dec 30 2007, 07:16 PM
Phoenix914   Its a red wire coming out of the AAR (all years),...   Dec 31 2007, 03:04 PM
SirAndy   Is the AAR itself bad, grounding internally? yup...   Dec 31 2007, 08:30 PM
Spoke   What is an AAR? I've seen AAR several times. A...   Dec 30 2007, 09:34 PM
McMark   Auxiliary Air Valve, basically it's a controll...   Dec 30 2007, 10:47 PM
McMark   Wellll............ :unsure:   Dec 31 2007, 11:03 AM
Dr Evil   Common gremlin, I even made a schematic :D   Dec 31 2007, 01:31 PM
McMark   :agree:   Dec 31 2007, 08:45 PM
Phoenix914   Thanks, gents. So...what do I do now? Replace it...   Jan 2 2008, 07:47 AM
Dr Evil   Just to make sure, in what condition was the plug ...   Jan 2 2008, 11:57 AM
Phoenix914   Just to make sure, in what condition was the plug...   Jan 2 2008, 12:31 PM
Dr Evil   Nope, ya got it. Good thinking :)   Jan 2 2008, 12:38 PM
Spoke   If possible, measure the resistance of the AAR wit...   Jan 2 2008, 03:03 PM
Phoenix914   OK, I'll check that out. Won't be until ...   Jan 2 2008, 03:08 PM
jimkelly   yo dog - got this one set aside for you   Jan 2 2008, 05:56 PM
Phoenix914   yo dog - got this one set aside for you Thanks...   Jan 3 2008, 09:12 AM


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