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fuse and relay function 700 1987

posted by  ronald on  Thu Nov 3 01:57 CST 2005
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last visit: Wed Oct 10 11:04 CST 2012
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Trying to troubleshoot a no - start condition but unclear on a few ideas from the FAQ.

If I jumper the fuel pump relay will both pumps run continuously.

If I pull fuse #1 and jumper the fuel pump relay will the in-tank pump run continuously?

When I jumper the fuel pump relay I hear the main pump running and a sloshing sound in the tank - is this fuel being returned to the tank through the return line indicating I am successfully pumping fuel to the fuel pressure regulator.

Thanks,

Ron
87 740 GLE, b230F, new wiring harness





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New fuse and relay function [700][1987]
posted by  ronald subscriber  on Thu Nov 3 01:57 CST 2005 >


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