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Registered User
Join Date: Apr 2015
Posts: 24
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911 will not start
This am I started my 80 sc and backed it out of the garage. Everything was fine. When I went to start it this pm NOTHING. It cranked but would not start. I was thinking fuel pump so I put a little started fluid down the Pop off valve. It sputtered but then quit. I replaced fuel pump fuse, it was old, and still nothing. I suspect fuel pump. Any easy way to check fuel pump operating with out getting under car? I already removed a plug and grounded it and had someone crank key. Plenty of spark. Thanks for help.
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Registered
Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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Did you check the fuel pump RELAY in the front trunk fuse box? You can try a black one to verify it works or not.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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check for spark. its easy. put a plug on an ignition wire and crank it.
turn the key on. remove the air filter and lift the sensor plate and listen for the injectors to spary. try to start it
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86 930 94kmiles [_ ![]() 88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ ![]() 01 suburban 330K:: [_ ![]() RACE CAR:: sold |
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Registered
Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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OP stated that he already verified spark.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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Registered
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Lift airflow sensor plate in airbox, and you should definitely hear the fuel pump start to run. If you don't your problem is the fuse or relay or pump.
My fuel pump relay socket is wonky and loose, so I had to spread the prongs on the relay a bit to improve the contact. Spray some electrical cleaner down in there also to improve the contact. Good luck!
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Jason - Austin, TX 82 911 SC targa (gone, but not forgotten) 92 968 coupe |
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Quote:
If you lift the plate and hear a whooshy-zishy noise, the fuel pump is running (although not necessarily providing sufficient pressure).
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Lillie - 1979 911 SC Targa, The Original 911 SCWDP Car. Currently in open heart surgery. |
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