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Join Date: Oct 2007
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930 fuel pump replacement

I've got and 86 930. Just cranks wont start, when the key is on I don't hear the fuel pump running, how do I know which fuel pump is out? I see a front fuel pump listed but haven't found a rear pump listed on pelicans site. Can you hear the rear pump running?
Old 06-18-2010, 11:56 AM
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Location: Mount Pleasant, South Carolina
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Look for the two red relays up front and above the fuses. With the pumps running, pull the relays one at a time to see which is running or not.

That said, they usually either run for a second when the ignition is turned on or not all (until the car starts).
Old 06-18-2010, 12:15 PM
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Thanks for the idea, I twisted the fuse around and it started right up. I can barely hear the front fuel pump running, it is a very quiet high pitch whine, seems it used to be louder, can't hear the rear pump running at all.
Old 06-18-2010, 12:41 PM
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Might want to clean the contacts and use a new fuse. If you get close, you might hear the pumps better or pull the relays to see if they are running. They make some noise, but not a lot.
Old 06-18-2010, 04:48 PM
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Cheap: What are you talking about above and why are you sending PM's?
Old 06-18-2010, 05:08 PM
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