2004 Ford Focus dash gauges (Page 1/1) newfiejeff OCT 28, 09:32 AM Hi does anyone know how all the dash gauges work on a 2004 Ford Focus(speedo, volt, gas, etc). It seems like it is all powered or a single ground, sometimes all the gauges good to dead and then come back on and sometimes it works for weeks and might go for a couple of days? rbell2915 OCT 28, 07:51 PM Do you need wiring diagrams? carnut122 OCT 28, 09:31 PM If they all go at the same time, I'd guess a bad ground or a bad hot connection (starting at the hot side of the fuse all of the way until it branches off). It's more likely the ground. Is there anything else losing power? newfiejeff OCT 29, 05:28 AM They all jump up and down the same time. I was doing some research on the internet and a common problem that could cause that is the wiring harness going into the alternator. If you got a wiring diagram I will gladly take it. Thanks. carnut122 OCT 30, 07:24 PM quote Originally posted by newfiejeff: I was doing some research on the internet and a common problem that could cause that is the wiring harness going into the alternator. Thanks. I'd start with that one. I've had great luck troubleshooting through Google.