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JP Noonan JP Noonan is offline
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Join Date: Dec 1969
Location: Dade County, FL.
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Blowing pump fuse, and hot V.R.

About 2 months ago I blew my fuel pump fuse while driving fairly hard. Figured out there was no noise, traced it to the fuse, and away we go...for about 2 months. June 28th leaving for NY NY, fuse blows again, pop in new one, get to airport, leave car until the 9th, it starts right up (actually I'm very pround of that one, considering it was outside the whole time). I drive a couple short trips, blow fuse again. Works for 10 minutes, pops again, new fuse. Now if I rev the motor it blows the fuse. I get home by removing the hot lead (worried that there is a short) and use a 30 amp fused jumper wire, directly to the battery.

Pump is a 6 month old new Bosch Carrerra 911 pump, filter is new, and I can't seem to find a short.

I don't have lots of time to work on it this week so any previous experience as to the cause is welcome. I'm thinking maybe the humidity in Miami has caused corrosion on the contacts, whould that resistence be enough to heat up and pop the fuse? I got a rock in my fuel pump? Some more mouse eaten wires I didn't find yet?

Also it seems that for the short time I drive the car the V.R. gets hotter than normal. It has an extra ground to the chassis besides the stock one. Maybe more corrosion, or the V.R. is dying and spiking the fuel pump?


TIA.
Old 07-10-2000, 04:39 PM
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