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General Information => Troubleshooting => Topic started by: katakura silk on April 07, 2009, 04:07:58 pm

Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 07, 2009, 04:07:58 pm: 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!!!
Title: I could care less about the fuel gauge, but....
Post by: Vincent Waldon on April 07, 2009, 04:19:56 pm: 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:
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 07, 2009, 04:24:46 pm: Thanks! On to the Bentley :D

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...
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 07, 2009, 04:30:18 pm: 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?
Title: I could care less about the fuel gauge, but....
Post by: commuter boy on April 07, 2009, 05:05:29 pm: 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.
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 07, 2009, 05:13:22 pm: Thanks!
Title: I could care less about the fuel gauge, but....
Post by: spencebm on April 07, 2009, 05:20:59 pm: 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:
Title: I could care less about the fuel gauge, but....
Post by: spencebm on April 07, 2009, 05:21:47 pm: p.s. stay off my forum 8)
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 07, 2009, 06:23:17 pm: 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:
Title: I could care less about the fuel gauge, but....
Post by: spencebm on April 08, 2009, 06:11:23 am: tell me what you need and you can have it, i already have a few presents for you
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 08, 2009, 06:16:07 am: Quote from: "spencebm"
tell me what you need and you can have it, i already have a few presents for you

5-speed?
Title: I could care less about the fuel gauge, but....
Post by: spencebm on April 08, 2009, 06:40:17 am: 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
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 08, 2009, 06:44:59 am: I knew you couldn't. :( We are going to take a Pull-A-Part trip to Louisville soon, would you like to tag along?
Title: I could care less about the fuel gauge, but....
Post by: shegel on April 08, 2009, 08:44:02 am: when i pulled the warning light fuse for the battery light on my 86 golf the fuel / temp guages stoped working also
Title: I could care less about the fuel gauge, but....
Post by: katakura silk on April 30, 2009, 08:17:39 pm: Update:
Problem solved!
It was the V regulator.
Thanks Vince/everyone for the input.
Working as it should.
Thanks!!!!
Title: I could care less about the fuel gauge, but....
Post by: Vincent Waldon on April 30, 2009, 09:12:32 pm: (http://img.photobucket.com/albums/v603/burnyourmoney/up1.jpg) (http://img.photobucket.com/albums/v603/burnyourmoney/up1.jpg) (http://img.photobucket.com/albums/v603/burnyourmoney/up1.jpg)