Section : Electrical Equipment

Fuel and Temp Gauges not working.. 

Posted By : Vivian Newlove, 07-Jun-2006, 10:26pm

• Fuel and Temp Gauges not working.. 

  Posted By : Matthew Harte, 08-Jun-2006, 07:47am

  Had the same problem myself and changed the voltage stabiliser (e-bay &163;7.99 - very regular listing) worked a treat. Located on back of speedo.
  
  Only problem is after a couple of weeks my temp gauge stopped working and I'm not sure what the problem is there. Anybody with any ideas on that? Could it be the temp sender unit?

  • Fuel and Temp Gauges not working.. 

    Posted By : Paul Bodiam, 08-Jun-2006, 01:14pm

    Hi Matthew
    
    Could be the gauge, sender, or the wire connecting the two (I think that just about covers it )
    
    Starting from the engine end: turn the ignition on (but don't start the engine) and then take the wire off the sender and touch it on to the engine block. Have an assistant observe the gauge: if it shows the engine overheating, then the sender is at fault. If it still shows nothing, then the problem is with the wire or gauge.
    
    Next, pop-out the middle panel of the dash and disconnect the green & blue wire form the back of the temperature gauge and rig up a connection from the gauge to a suitable earth. Again, turn on the ignition and observe the gauge. If it shows hot, then the gauge is working but the connection to the sender is at fault. If it shows cold then the gauge is broken, or the feed from the voltage stabilser has failed.
    
    Finally, if you have a voltmeter, check the voltage on the light green wire on the back of the gauge (the feed from the voltage stabiliser). If you have an original style voltage stabilizer, you should see the it pulsing on and off around once per second. If you have one of the new solid-state stabilisers that are now available, you should see a constant voltage around 10 volts.
    
    Hope this helps
    
    cheers
    Paul

    • Fuel and Temp Gauges not working.. 

      Posted By : Matthew Harte, 08-Jun-2006, 05:01pm

      Thanks - I'll give it a go tonight as it's nice again. I'll let you know how I get on!
      
      Matthew

    • Fuel and Temp Gauges not working.. 

      Posted By : Matthew Harte, 08-Jun-2006, 05:03pm

      Paul
      
      Great help - finally tracked down to a break in the wires under a protective sleeve so missed initially. Fixed it and now have temperature reading.
      
      Thanks for the help, most appreciated
      
      Matthew

      • Fuel and Temp Gauges not working.. 

        Posted By : Vivian Newlove, 20-Jun-2006, 10:26pm

        Thank you all for your help, problem now sorted. There was an intermitant power failure between the fuse box & the voltage stablizer, a new wire now connects the two. I replaced the old Lucas voltage stablizer with new semiconductor stablizer from keith@fenwick40.freeserve.co.uk as old unit was not accurate (gauges reading high). Regards, Viv..