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-   -   1992 Prostar 205 Oil and Fuel Gauge (http://www.mastercraft.com/teamtalk/showthread.php?t=57467)

prostardad 09-18-2013 02:31 PM

1992 Prostar 205 Oil and Fuel Gauge
 
I just purchased a 1992 MC Prostar 205. The oil and fuel gauges do not work. The volt meter and engine temp gauge work fine. The previous owner said the sending units were bad. I replaced the oil sending unit, but the gauge still registers 0 psi. The oil level is fine. I have not tested the oil pump yet. I hear a faint audible squeal when the engine is running. Itís coming from a circuit board behind the dash.

Is the noise a low oil level warning or something else?

What are the other causes for the gauge to read 0 psi?

How would I check to see if the gauges are bad?

Is there a common ground that the oil and fuel gauges use and maybe corroded?

Thanks for helping.
SWH

j.mccreight@hotmail.com 09-20-2013 09:36 PM

2 Attachment(s)
Yes there is an audible alarm in the dash for oil psi, voltage and engine temp.
To test fuel gauge, access fuel level sender, key on, remove pink wire and ground it, the fuel gauge should peg past full if not test at gauge itself eliminate wiring, if gauge moves then a bad sender if doesn't move bad gauge, with the sender signal wire(pink wire) disconnected the gauge should read below empty. Same test for oil psi gauge except its a light blue wire(iirc).

prostardad 09-21-2013 07:57 AM

Thanks MC Maniac, this is exactly the type of info was looking for. SWH

cesarcis 10-02-2013 01:47 PM

Upon start up my fuel gauge goes to full and does not move. Does this mean a bad sender?

cesarcis 10-02-2013 02:08 PM

Upon start up my fuel gauge goes to full and does not move. Does this mean a bad sender?

j.mccreight@hotmail.com 10-06-2013 10:38 PM

Quote:

Originally Posted by cesarcis (Post 982469)
Upon start up my fuel gauge goes to full and does not move. Does this mean a bad sender?

Yes, more than likely its internally grounded, or possibly a short to ground in the fuel level sender circuit. Disconnect the signal wire with key on and see if the gauge doesn't move.


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