Auto box shifting down when indicating?

[Stuarty]

Guys i was out in the Mistral today and i noticed that the autobox is what feels like changing down a gear or disengaging overdrive when indicating right at 50 plus mph it seems to do it in sync with the flashing of the bulb so its kinda pulsing if that makes sense like when the bulb comes on the revs increase and when the bulbs off it goes back to normal and this happens in time with the indicator lamp on the dash i had an electrical glitch a few weeks back where i got 18 odd volts from a failing alternator but i dont understand how the right hand indicator and the gear box could be connected i dont even know where to start with this one :doh any help would be greatly apreciated :thumbs

Thanks Stuart.

 

[kbekl]

Guys i was out in the Mistral today and i noticed that the autobox is what feels like changing down a gear or disengaging overdrive when indicating right at 50 plus mph it seems to do it in sync with the flashing of the bulb so its kinda pulsing if that makes sense like when the bulb comes on the revs increase and when the bulbs off it goes back to normal and this happens in time with the indicator lamp on the dash i had an electrical glitch a few weeks back where i got 18 odd volts from a failing alternator but i dont understand how the right hand indicator and the gear box could be connected i dont even know where to start with this one :doh any help would be greatly apreciated :thumbs

Thanks Stuart.

i ahve just had this with my bighorn and it was down to the alternator as their was too low a current coming from the alternator it woudl make the power fluctuate and cause the gearbox to miss understand what you were doing

 

[rustic]

i ahve just had this with my bighorn and it was down to the alternator as their was too low a current coming from the alternator it woudl make the power fluctuate and cause the gearbox to miss understand what you were doing

Check that switching on the headlights or heated rear screen should also do it,
and monitor the battery voltage as well.

Sounds like it could be this.

Never heard of it before, but then I have never owned an Automatic.

 

[Stuarty]

It has a brand spankink new alternator in it thats charging at 14.8 v dont know what the current is but it dosent do it when the lights or demister are turned on just the right hand indicator wonder if the relay or flasher unit could be fubard?