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Registered
Join Date: May 2007
Location: Hawaii
Posts: 141
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Could it be my fuel pump?
Hello Everyone!
I have a '78 911SC (30K miles). Anyway, I successfully changed my plugs and wire-set over the weekend. Started and ran perfect! Whoohoo... Turned it over the next morning; it tried to spin-up (1st try) but didn't quite catch. Thereafter, I kept cranking...no go! Left'er in the garage. Bummer! I noticed I didn't hear the normal fuel pump buzzing gurgling sounds (at least I didn't think I did...). Thus I'm thinking it may be the fuel pump, the related fuse, or relay... How can I test to see if this is my problem? Strange that this would happen directly after the plug/wire change... Any relationships there? Also, whats the expeted life-span of a fuel pump? Any ideas? Thanks, Tom 
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1978 - 911SC Targa 2005 - F150 2008 - XC90 Kaneohe, Hawaii 
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10-01-2007, 05:50 PM
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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Check your fuses and relays first.
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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10-01-2007, 05:59 PM
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Join Date: Oct 2001
Location: Downingtown, pa usa
Posts: 369
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Marks is right check fuses and relays. Change out the fuel pump relay(red0 with a balck one - just to see if its the red relay. This is only temp !
do a search here for fuel pump etc - this a a whole bunch out there that will help. The next thing i would do to test the pump - with the key in the on position. Push the plunger( under the airbox) up - this shoul bring the fuel pump on. If it doesn't keep going it still may not be the fuel pump. Check everything you tough or got close to. Good luck. earl
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78 SC Coupe 93 RSA (Gone) |
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10-02-2007, 11:03 AM
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Registered
Join Date: May 2007
Location: Hawaii
Posts: 141
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Quote:
Thanks! Tom 
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1978 - 911SC Targa 2005 - F150 2008 - XC90 Kaneohe, Hawaii
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10-02-2007, 11:04 AM
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sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
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Yeah, they can work loose. The connections aren't that great to begin with. I use a dielectric grease used for transformers on my connections. I also found that just because you can hear a relay click it doesn't mean it's good. My horn didn't work and it was the relay even though I could hear it clicking when I pressed the horn button. Bad contacts in the relay.
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
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10-02-2007, 11:12 AM
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