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Technical Fuel and temp gauge failure

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Technical Fuel and temp gauge failure

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FrenchHymer

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Both the temperature and fuel gauges are now staying at zero on my '92 Ducato-based Hymer - a previously intermittant fault which now seems more permanent! Up till now if they were playing up they mysteriously started to work after a few kilometres, but not today!

All other dash functions are normal (although the pael lights are quite dim?) so probably not an earth problem. I believe there's a voltage regulator for these two gauges which could be the culprit, but does anyone know where it is, what it looks like and whether it can be replaced relatively easily?
 
Hi, realise you have had an on going issue here, but still worth disconnecting the battery for 10 minutes or so my fuel guage had issues I was given this info and mines been spot on ever since.
 
Thanks for the response, but this particular gauge problem has now been solved!

The handbrake warning light (shared by the 'entry door step down' warning) had also failed and it was easy to check that there was no power to the step warning switch, which ruled out an earth problem.

I had to take the motorhome to England with no gauges (took 10 litres of spare diesel in cans and refueled every 300km!) but amazingly found an auto electrician nearby in Dorset who specialises in classic motorhomes!

There are two live feeds to the dashpanel and one of them feeds the gauges and the handbrake warning light. Somewhere in the depths of the engine bay a multiconnector was probably playing up, but the simple answer was a bridge from the working live feed on the dashpanel to the dead one - the currents involved are very low and there's apparently no downside to this.

A simple fix involving a knowlegable chap with a simple tester, which I hope might benefit someone else one day!
 
FrenchHymer said:
Thanks for the response, but this particular gauge problem has now been solved!

The handbrake warning light (shared by the 'entry door step down' warning) had also failed and it was easy to check that there was no power to the step warning switch, which ruled out an earth problem.

I had to take the motorhome to England with no gauges (took 10 litres of spare diesel in cans and refueled every 300km!) but amazingly found an auto electrician nearby in Dorset who specialises in classic motorhomes!

There are two live feeds to the dashpanel and one of them feeds the gauges and the handbrake warning light. Somewhere in the depths of the engine bay a multiconnector was probably playing up, but the simple answer was a bridge from the working live feed on the dashpanel to the dead one - the currents involved are very low and there's apparently no downside to this.

A simple fix involving a knowlegable chap with a simple tester, which I hope might benefit someone else one day!
Click to expand...

Might as well give the guy a plug I'm sure others would be delighted to find him.
 
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