Outer Limits 4x4 Board

Hi guys, I have a HZJ105R standard 100 series cruiser, no turbo, sometimes my tacho works and sometimes it does'nt. Also sometimes the fuel and alternator guages take 10 seconds on come on. Sometimes I can open the drivers door, flick the interior light switch on the pillar with my finger and watch all the guage needles flick up and down all over the place. Very strange. Toyota don't have an answer. Any ideas ??? any help would be much appreciated before I spend a fortune for Toyota to look at it. Thanks JayDee.

it sounds like you have a poor earth connection somewhere. could be on the instrument cluster or alternator, battery etc. good luck finding it, they can be intermittent and a PITA to locate

Thanks for the info have re jigged all my trailer wiring, even put in an extra earth cable in, could'nt really see anything wrong, have also thoroughly cleaned battery terminals and earth points, replaced all the fuses it appears to be better but time will tell otherwise dashboard out I reckon. Thanks again. will let you know how it goes.