Quote:
Originally Posted by lo_jack
Ok, just for funzies, I replaced the fuel filter, which has been in there for potentially tens of thousands of miles and an even longer time, fermenting old gasoline into muck.
The gas is a mix of pretty old with stabilizer and fresh premium.
I put a new fuse in 47, put the connector back on the pump and put the key to start.
Miracle of miracles, the new fuel pump starts humming.
I did this a few times to see if it would pop the 47 fuse again. Nope. Always primes the pump.
So I pressed my luck and turned it over--and it worked. Thanks for the ideas, everyone.
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The old fuel pump was dead and because it wasn't spinning, it just drew a greater load on the circuit until it blew the fuse. Had that happen to me on an Audi Quattro 4000 CS, except it wasn't a fuel pump, it was the radiator fan motor, and being the stupid Germans engineering that everyone talks about, they didn't put the radiator fan motor on a fused circuit, but wired it directly to battery B+. The wire harness was the fuse for that circuit and it melted the wires in that harness.