1996 300 Tdi- with 89,000 miles FSH- I noticed on a drive out yesterday that the rev counter needle is dancing between 1,000 rpm and 3,000 rmp with the vehicle doing a constant 60 mph

When Idling it jumps between 700 rmp to just over the 1,200 rmp mark - the engine I might is reving and idling as it should - its just the needle that seems to have lost the plot

any idea's guys??

Les

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1997 -Arden 300 Tdi - Driver

Loose connection on the back of your alternator, clean the contacts and check the connector isn't loose.

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Thanks - I'll give that a go

Les

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1997 -Arden 300 Tdi - Driver

Also check your belt, it could be slipping.

Notice the same until i changed the alternator, I would look at the connections as red hand said. cheers.

Combination of both - loose belt and dirty connector on the alternator- new belt and some wd40- problem sorted

Thanks guys


Les

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1997 -Arden 300 Tdi - Driver