Broken fuel- and temperature gauge T4 -91

[Ludde85]

Hi, I have a VW Caravelle T4 -91 with AAC-engine (2.0L gasoline).

Since I bought this car, the fuel- and the temperature gauges has been broken. But now I decided to try to fix it.
As far as I've heard, this is a quite usuall problem on the older VW:s, so I wonder if someone here have any hints for me?

I've taken the dash out and disambled the "fuel and temp-frame" from the electric card. I also tried the gauges by putting cables from a 6V-battery directly on the connectors, and then both gauges move...

So, if someone knows anything about this, please tell me.

Sorry for my english, I am a stupid Swede...

[carbon]

Take a look at this post from the forum t4 fuel and temp gauge not working
The second post has what looks like a good guide to the problem.

[Scrotum Head]

Dry joint on the back of the gauges or the voltage stableizer, just need to resolder the conections. Its hard to see sometimes but resoldering them works!

[cecilmor]

I've the same prob with the temp gauge in my T4 Transporter however it does occasionally work for very short periods of time. It is obviously a break in a connection somewhere along the line and it seems as if the instructions above could be the solution however they state that they apply to pre '96 analogue models. Mine is a '99/00 and fitted with the digital instruments.
Does anyone know if the same problem is common & if the same solution works on the later machines??

Thanks All....

[Scrotum Head]

Sorry dont know about the later ones but sounds like it could still be the voltage stableizer soldering, normally looks like a small black transitor type thing with 3 connectons.

[cecilmor]

Nice One Scrotum Head, it does sound similar though. I'll have a look at over the next week in the hope it is.

[lostboy]

I`ve fixed 2 t4`s with the same problem,go here for the complete fix.

http://www.vwoc.euromarques.com/tech.../t4_gauges.htm

J