Renault Master Warning lights come on while driving? - Page 3 - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #21 of 26 (permalink) Old 31-05-2013, 22:37 Thread Starter
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Thanks Stanner. I will certainly try that tomorrow when it's light and I am sober. Dangly bits protected.

These intermittent faults are the hardest to determine and defining the problem is 90% of the way to the solution.

I know it's something simple but my experience is with older cars and not with diesels.

Any other suggestions also welcome. I'll try Anything
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post #22 of 26 (permalink) Old 01-06-2013, 15:56 Thread Starter
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I am going to have to visit a Renault Truck Dealer on this one.

What I have found is that Renault Trucks SAS have an app for the IPhone that shows all the nearest dealers to your location. I can plan my route via one.

Other Renault owners may find this app useful to have when travelling anywhere.
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post #23 of 26 (permalink) Old 25-06-2013, 15:30 Thread Starter
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Ureka! I have finally got this one sorted. I have been at Renault Trucks at La Cala on the Costa del Sol for 7 days over the last two weeks. Finally, after trying everything the diagnostics threw up, they changed the turbo.

It was a mechanical problem. The casting for the cover had cracked at the three narrow support legs which allowed it to impeded the adjustable fan blades at times. Being mounted in a vertical plane, it would still work at times which explained the intermittent nature of the fault and difficulty tracing.

The cost of all the work done by four garages working and replacing sensors and valves according to the diagnostics exceeds the cost of replacing the turbo!

I question the value of diagnostics and software driven engines over good mechanical know how. It has taken a year to sort this but I am so glad I have. It's great to have full power back.

Thanks to all of you that have helped.
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post #24 of 26 (permalink) Old 25-06-2013, 16:05
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That really is good news Andrew - what led them to change out the turbo? Previous experience? As you say, it didn't show up in diagnostics.

Colin

No longer motorhoming due to illness, but always prepared to help by sharing any experience I may have.
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post #25 of 26 (permalink) Old 25-06-2013, 17:35 Thread Starter
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Quote:
Originally Posted by camallison
That really is good news Andrew - what led them to change out the turbo? Previous experience? As you say, it didn't show up in diagnostics.

Colin
Was it Sherlock Holmes who said "when you have eliminated everything else, that which remains must be the truth". Well something like that anyway. I had replaced all other possibilities.

The problem with hi-tech is that there are so many possibilities with sendors and valves and human nature leads garages to tend to replace all these first.
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post #26 of 26 (permalink) Old 25-06-2013, 17:40
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I once had a service engineer who worked for me who changed everything until he had sorted the problem. It was good for turnover, but proved too expensive for some customers. Both they and I cheered when he found another job! That was on electronic process control equipment in the 70s.

Colin

No longer motorhoming due to illness, but always prepared to help by sharing any experience I may have.
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