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Join Date: Jan 2003
Location: Burlington, Wisconsin
Posts: 10,162
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87 carrera fuel pump fuse

Guys,

I have an 87 carrera I am working on for a friend. The car died on his wife a few weeks back and they towed it over to my place. I looked at the typical connections etc and found the fuel pump fuse had blown. I replaced the fuse and it started right up. I ran it for about 30 minutes with no problem. went to start it up the other day and it was ano go. it would pop a little but nothing would happen. then I looked at the fuel pump fuse again and it was blown again. changed it again and same thing right away. Can I assume I just have a bad fuel pump and its time for a new one?

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Old 08-18-2015, 04:48 AM
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Join Date: Sep 2012
Location: Vilnius
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Could be a pump or short in the wiring. Any mice been in the car by chance? I don't have a diagram infront of me but I do recall many Bosch systems of similar vintage would run the heater element for the O2 sensor on the fuel pump circuit. Hence, the fuel pump fuse would blow if the heater element shorted to ground... perhaps something to look at before going straight to the fuel pump replacement. I would check the wiring diagrams for other culprits on the same circuit/fuse.

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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.”
― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values
Old 08-18-2015, 06:03 AM
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