I could care less about the fuel gauge, but.... - page 1 - Troubleshooting - VWDiesel.net The IDI, TDI, and mTDI source.

• I could care less about the fuel gauge, but.... by katakura silk on 07 Apr, 2009 16:07
• I need my temperature gauge to work. My brain wants to explode every time I try to follow the wiring diagrams, but in the end I have not really tried hard enough.
  
  Could it be a bad ground that is causing both to not work. I have replaced the fuel sending unit and when I drain the coolant Im going to replace the two temperature units that are directly below the oil pressure unit...
  
  In the end how do the temperature units go bad anyways? Wouldnt it be more the wiring or the gauge?
  
  Thanks for the help!!!
• #1 by Vincent Waldon on 07 Apr, 2009 16:19
• Simultaneous failure of both the temp gauge and fuel gauge is a common issue most often caused by a failure of the voltage regulator that they share, or intermittent contacts where the voltage regulator plugs into the cluster's circuit board.
  
  Bentley service manual has pictures, diagnostics, etc... or do a bit of searching and you'll find numerous threads on this puppy. :wink:
• #2 by katakura silk on 07 Apr, 2009 16:24
• Thanks! On to the Bentley
  
  I was just going to live with it... Fill up every 4 hundred something miles, but it started to get to me on long trips that I would have no idea I was overheating until catastrophic failure... :cry:
  
  Thanks again...
• #3 by katakura silk on 07 Apr, 2009 16:30
• Wow, I feel stupid for posting. It all makes sense. I guess I should have looked instead of posting first... Thanks again, though... :oops:
  
  
  Will this have to be a junkyard find?
• #4 by commuter boy on 07 Apr, 2009 17:05
• Nope, just pull the cluster, open up the back and bend the resistor wires to make them connect better, or perhaps a tiny bit of solder.
• #5 by katakura silk on 07 Apr, 2009 17:13
• Thanks!
• #6 by spencebm on 07 Apr, 2009 17:20
• youll know if that baby is overheating or not!  just open the heater vents and let it coast...then fire it up again when it cools down.  if you have good coolant/waterpump/radiator/fan then i don't think you will have a problem, especially with no big nasty charger and lots of fuel... :twisted:
• #7 by spencebm on 07 Apr, 2009 17:21
• p.s. stay off my forum
• #8 by katakura silk on 07 Apr, 2009 18:23
• Quote from: "spencebm"

  youll know if that baby is overheating or not!  just open the heater vents and let it coast...then fire it up again when it cools down.  if you have good coolant/waterpump/radiator/fan then i don't think you will have a problem, especially with no big nasty charger and lots of fuel... :twisted:

  
  
  Hey, baby... I do have good coolant, New WP and hoses. The fan is original along with the Radiator...Why dont you let me come dig through one of the many Broke down Volkswagens you have on the good old Spencer farms.  :evil:
• #9 by spencebm on 08 Apr, 2009 06:11
• tell me what you need and you can have it, i already have a few presents for you
• #10 by katakura silk on 08 Apr, 2009 06:16
• Quote from: "spencebm"

  tell me what you need and you can have it, i already have a few presents for you

  
  
  5-speed?
• #11 by spencebm on 08 Apr, 2009 06:40
• haha, what ratio trans do you want?  we might be able to find you one in a junk yard, we have a bunch here but i don't think i am allowed to give those away
• #12 by katakura silk on 08 Apr, 2009 06:44
• I knew you couldn't.  We are going to take a Pull-A-Part trip to Louisville soon, would you like to tag along?
• #13 by shegel on 08 Apr, 2009 08:44
• when i pulled the warning light fuse for the battery light on my 86 golf the fuel / temp guages stoped working also
• #14 by katakura silk on 30 Apr, 2009 20:17
• Update:
  Problem solved!
  It was the V regulator.
  Thanks Vince/everyone for the input.
  Working as it should.
  Thanks!!!!