I got a similar problem....sometimes it goes down to 20 from while cruising at 60, and other times it'll jump to 110 when i'm only doing 100. But in my case, if i tap on the cluster's plastic...it fixes itself...but then comes back later.
I think in my case its just the cluster getting old, because i've checked all the wiring. Plus temporarily swapping in a replacement cluster seemed to fix the problem.
Having said that, i have seen the speedo do funny things when there is a short somewhere in the wiring and a blown fuse.
I got a similar problem....sometimes it goes down to 20 from while cruising at 60, and other times it'll jump to 110 when i'm only doing 100. But in my case, if i tap on the cluster's plastic...it fixes itself...but then comes back later.
I think in my case its just the cluster getting old, because i've checked all the wiring. Plus temporarily swapping in a replacement cluster seemed to fix the problem.
Having said that, i have seen the speedo do funny things when there is a short somewhere in the wiring and a blown fuse.
this is exacly my case!!! will try to fix soon any one in melb got a speedo for sale???
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