Don't try to physically trace the wire from the fuel sender. Use an
ohmmeter or volt meter. According to the 504 OWM from Autobooks, the 504
fuel sender have one wire going to it. In the diagnosis for a fuel gauge
not registering, it list the following:
1. no power to the gauge
2. gauge casing not grounded
3. wire between gauge and sender shorted to ground.
I would try the following:
With ignition sw. off, disconnect the wire to the sender unit and check
if shorted to ground. If not shorted, check for voltage with ignition
on. If there is voltage, ground the wire and see if the gauge needle
moves. If there is no voltage, connect the wire to +12V through a
resistor (try 10 ohms) and see if the needle moves. If you can get the
needle to move by either of the above then the gauge and wire is ok and
the problem is the sender.
Steve
On Mon, 30 Nov 1998 10:24:15 -0000 David Herlihy <dherlihy@dc.cdc.org>
writes:
>Well after standing on my head for an hour I finally figured out how
>to fix
>my heater fan problem. Seems that there is a ground right behind the
>cable
>coming from the rods that I believe may offer some sort of resistance
>that
>allows you to vary the fan speed. I am no electrical engineer by a
>longshot
>so I may be wrong on that one. After I spliced in a new wire and
>connector I
>switched the car on and I had a fan again. This is important for all
>504
>owners and maybe 505 ones also to check on if you are having fan
>control
>problems before replacing the card that is back there. Of course as
>soon as
>I get the heat hooked up the weather in DC turns crazy and heats up to
>the
>mid 70's. Go figure. Ain't global warming great?
>
>BTW thanks to Steve Leung and Brian Holm for the help on the fuel
>sender. I
>still need to tackle that one. I still haven't figured out how to
>check the
>wire lead running from the sender itself. It disappears under the
>trunk of
>the car seemingly into space.
>
>Thankfully the list of things to do keeps getting smaller. :)
>
>David
>'75 504GLTD
>
>_____________________________________________________
>To unsubscribe, send email to PEUGEOT-REQUEST@PADUI.ORG with the word
>
>UNSUBSCRIBE in the message body. Leave the subject line blank.
>_____________________________________________________
>
>
Steve Leung
Connecticut
USA