Electrical Problem
Thread Starter
Pro
Joined: Aug 2001
Posts: 534
Likes: 0
From: Rochester Hills Mich
Electrical Problem
Ok here is my problem. Driving home tonight my car just shut down and stopped running. I rolled into a parking lot to restart but it just acted like it was out of gas with a full tank but no fuel pressure on my gauge. So I checked the fuses and the 10amp fuel pump fuse was blown. I had no replacement at the time so I used the 15amp fuse from the horn circuit. It ran and the car started and got me home without blowing again. My question is this a sign from God that the stock fuel pump is on its way out or could there be a problem somewhere else? Im going to put an amp meter on it to see what it drawing for current but that really wont tell me if it spikes every now and then. If it’s the pump are they hard to change and where is a good place to get one? It’s a 95.
Melting Slicks
Joined: Jul 2003
Posts: 3,491
Likes: 868
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
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Re: Electrical Problem (95Purple)
I do this all the time, but yes you could be getting signs that the pump is on its way..Best thing to do is run the motor with a fuel pressure gauge taped to your windshield and go put it through its trials..Watch for major fluctuations in the pressure, then while its hot, let it run and physically listen to the pump as close as you can get..The pumps are almost always noisy when they are on there final passing...But yes fuses can just blow..Ive spent hours looking for reasons a fuse blew to find nothing,and never have it happen again....There is such things as defecs in workmanship with fuses also........
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Re: Electrical Problem (95Purple)
Fuses blow for a reason! You likely have abraded insulation on the wire going to the fuel pump. Check the full length of the wire. When fuel pump motors fail they usually stop drawing current not excessive current. Fuses do fatique, that is, the transient startup current pulse of equipment temperature cycles the fuse element and after a large number of events, the fuse weakens and finally blows on a startup.
