Rev Counter Problem

[Karl O]

Can anyone help me i was driving down the A13 earlier in my 4.2 99T Cerbie and the rev counter just droped to the bottom, As i lifted the throttle the rev counter came back to life but if i touch the window buttons, heated rear screen etc any thing electrical it just drops to the bottom has anyone had a problem like this

Could it be a bad earth or something like that

Thanks For Any advice

Karl

[madasahatter]

I have heard of people noticing this when their main charging fuse is on the way out. If you are having problems with charging then this is likely to be the problem.

Since it is a cheap thing to try it might be worth changing this anyway, since Cerbera's are reputed to eat their way through these fuses at an alarming rate.

Do a search, and you will probably find the specification of the fuse, together with how to fit it. I suspect it is a very easy job, but if the fuse is in the late stages of giving up the ghost, then your car could let you down at anytime.

Hope this helps (I am sure other suggestions will be along shortly)

[mike_e]

I tend to agree with madasahatter, I had a similar problem when my charging fuse went.

The Charge light didn't come on as you'd expect but the Rev Counter went beserk and got worse as the battery charge dropped.

Fuse is a flat metal blade type, 100A rating, costs about £1. It's located in a black plastic cover on top of the Gearbox bellhousing. Probably need to remove bodywork in front of the windscreen to gain access. Even if it looks intact check it carefully they can simply vibrate loose and cause trouble.

Mike

[Karl O]

Thanks for advice the fuse had started to go a little and also the alternater had packed up on me £50 to sort it out and i am on my way again,