Speedo dipping when wipes are on

[Heidi1979]

Hi, we have a 2010 elddis majestic 155 (Peugeot boxer). When we put the wipers on the speedo dips and rises and we loose a little power. Does anyone know what might be causing this?
many thanks

 

[denisejoe]

I would think an earth fault

 

[suavecarve]

Similar happened to us. Just hadnt really tightened the battery terminals.

 

[Just smiffy]

Wind resistance slows you down….

 

[andykim]

Ahh the joys of an old motor, points,dynamo,and an SU Carb

^{_{Subscribers  do not see these advertisements}}

 

[St3v3]

Battery terminals, earth straps etc. would be my guess.

That's a clean them all job, not necessarily replace.

 

[GeoffnDee]

As has been advised , it would be worth checking the battery connections etc but the engine/gearbox to body earth cable could be worth replacing , they have been known to cause electrical and other faults as there can be a problem with the earth cable terminal connection to the cable looking ok but having a resistance ,due to corrosion , between them.

 

[Heidi1979]

Thanks guys, I’ll take a look at the earth tomorrow, fingers crossed it’s something simple

 

[Alsatian]

Ahh the joys of an old motor, points,dynamo,and an SU Carb

I'll see you and raise you - a solex fixed jet carb!

 

[WallaceandGromit]

I had an old ford pop and the wipers stopped over 45 mph if memory serves

^{_{Subscribers  do not see these advertisements}}

 

[meanders]

I had an old ford pop and the wipers stopped over 45 mph if memory serves

Only when accelerating or climbing. Downhill they went bonkers.

 

[Verteuil Man]

We used to have Ford D series tricks for our roadmarking vehicles. Vacuum wipers which slowed as the revs dropped. Made going over Shap in a rain storm interesting.
Mind you the Fords were better than the ex Navy Bedford TK.