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Discussion Starter #1
My article detailing the fix for intermittent working of the Fuel and Temperature Gauges in the early T4 (pre 1996) dash panel has been popular the world over. Unfortunately it was hosted on a server that has become increasingly difficult to access.

The complete article has now been moved onto my own server space and should be available from here.

If anyone comes up with a definitive repair for a similar problem with the later dash panel I would like to be able to detail that repair on a similar page.

Rod.
 

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Is there any information on the digital clock problem, Ive been on a german T4 website and its been mooted that it may be a voltage problem! so that could be anything really lol
 

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Just thought I would mention that I carried out the "standard Solder Job" and when I hooked up the dials to test still had nothing. I gently lifted the voltage reg with my finger and bingo the fuel/ temp etc kicked in. So I fitted a very small spiral washer behind the Voltage reg and the gauges have worked for three weeks now. Like a said just an observation.
 

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Anybody know of a garage or company that does this fix? I,m based in Hertfordshire but I'm guessing I could send the parts off some where... Thanks
Martin
 

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Discussion Starter #5
Hi Martin,

I guess that a job like this is not really within the normal scope of any motor trade workshop as they very rarely have to 'repair' items at printed circuit board level. The normal practice in a garage workshop is to change a part complete.

The origins of my repair to this board were with the failure of a garage workshop to be able to offer more than changing the voltage regulator. Which they did under warranty and of course the failure recurred. Or to change the PCB complete at a silly cost. I repaired my own and then subsequently repaired a number of others hence the webpage devoted to the DIY fix.

Maybe you will find one of the specialist auto-electrical folks that would be willing to do the job. You could always point them to the web page as a guide to the necessary repairs. The fault is not always obvious as the crack in the solder can be very small needing a good magnifying glass to see it.

Perhaps there is someone reading this who is not too far from you and could do the job for you if you feel that it is beyond your own skills.

Re Jaz's problems above, if by putting some 'load' on the connector by fitting a washer behind the voltage regulator he cured the problem it was either a damaged socket where the regulator plugs in or he missed a hairline crack in the solder / PCB. Either way that 'fix' put just enough pressure on the connection to re-make it. Often the fault will re-occur in these cases when all parts settle and the extra pressure relaxes. In these conditions this where the electronics trade use a freezing spray to shrink connections just enough for a fault to mainfest itself.

Rod
 

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Rod_vw

Nice one fella.. Followed your instructions today, and those of your Australian contributor, and we have success!! (Well, for now we do anyway but the vans not on the road yet so we'll see lol)...

I would just like to add tho that the speedo doesn't just pull out the same as the clock and fuel/temp gauge, it needs unscrewing via to 4 screws recessed into the black holes in the 4 corners, so don't force it...

Other than that I can't fault your info and thank you very much for taking the time to write it up and, potentially, save me a lot of money T:T:T:

Cheers, Rich... :cheers
 

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Hi Guys,

I am wondering if you know anyone in Portugal/Spain/Italy doing this work....
It would be a great help.

Thanks!
Alessandro
 

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Thanks Rod_vw the Aussie email and your regulator had the answer to my problems with fuel gauge not working and other things behaving erratically.
 

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i was dreading attempting this job as my gauges have never worked.... but i followed the instructions and it didnt work, so i tried it again and did a better job on the soldering and it works....fantastic...the only thing i would add in the instructions is that the speedo needs the 4 screws undone to release ,it just said a similar way...so i pulled the speedo needle off thinking it was like that, and it wasnt.....(not happy)

definatly a helpful post
 

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many thanks, had my 1993 t4 3 weeks first job i have had to do, easy to follow your guide.
will say use a fine tip soldering iron and have a god magnifying glass. watched vid on youtube first picked up good tips on soldering.
 

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Hi Guys

I know this in an old post but as part of my every day job I repair boards that require reflowing.
All work is carried out on the bench under a magnifying glass with a very expensive soldering iron.

Regards,
Nige
 
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