My cluster shows wrong speed.?

[Allexz]

I think it shows 20km/h to fast. when im going around 100km/h.

My tyres is 185/60/14.
I thought about setting 195 or 205/55/16

Any help. ive do not have the gts tranny

[alimonos]

look at your T50 speedo gear...if it is a 19toothed one i have got a brand new 22toothed one to sell you and fix your problem...

[banpei]

That won't fix it completely: your speedo will measure 110 when driving 120 then...
http://www.tiresizecalculator.info/

Did you change the rear axle from SR5 to GTS?

[DJexor]

bit offtopic and a bit not

My km/h gauge stopped working and the km counter too. Rev gauge and lights of cluster works. Anybody knows why??

[Jan Pedersen]

DJexor Wrote:bit offtopic and a bit not

My km/h gauge stopped working and the km counter too. Rev gauge and lights of cluster works. Anybody knows why??

The cable from the gearbox to the cluster is broken...

[DJexor]

Jan Pedersen Wrote:The cable from the gearbox to the cluster is broken...

Oke thanks, can you tell me where that cable is located exactly at the gearbox?

[EE80Liftback]

@Jor: It can't be hard to find, it just a cable going trough the firewall that mounts to the top of the gearbox, fitted with a ring that is probably made of plastic. If you unscrew the ring (by hand) you can pull it off the gearbox. The other end is mounted to the back side of the cluster with a plastic clamp.

[alimonos]

@ Allexz : If you have a 19teeth speedo gear and change it to a 22teeth you 'll solve the problem ...

[jamiemirror]

Don't expect 100% correct readings. Any car manufacturer "insure" that readings are a little higher than real speed.
I think that your problem is not technical - if your speedo shows 120km/h with real speed ~100 or little higher.

[Allexz]

ive have the volvo 240 rear axle w the 4.88 in ratio