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Sudden Fuel Problem - New Pump, Good Relay 850 1994

posted by  RepairmanJackal on  Fri Feb 21 15:36 CST 2014
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last visit: Tue Jun 10 09:52 CST 2014
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I replaced the fuel pump in my 1994 850 a couple of weeks ago. Yet the car died w/o warning at a license office parking lot today.

It was the classic "starts-dies, starts-dies, starts-dies" that's typical of pump relay failure.

I jumpered the relay 15 to 87 and still got no fuel at the rail.

Had it towed <1 mile home. Initially assumed that the pump was junk (Autozone special). However, I just applied 12v power to the pump lead and it fired up immediately sending fuel up to the rail.

I swapped relays, jumpered it again and still I get nothing.

I hear nothing from the pump when I turn the key. Seems like something else is wrong.

Any thoughts on the problem when the Pump and Relay both check out?


I really hate diagnosing electrical issues, but aside from confirming pump wire continuity, I'm not sure what else to look at.






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New Sudden Fuel Problem - New Pump, Good Relay [850][1994]
posted by  RepairmanJackal subscriber  on Fri Feb 21 15:36 CST 2014 >


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