Thought i'd ask and see if anyone had come across this problem before i start trawling through wiring diagrams and pulling the car to bits . Here goes it's a 1999 galaxy ultima (2.8 auto ) , when the car gets really wet the rev counter seems to go a bit bananas and do it's own thing , which in it's self isnt such a problem but it seems to affect when it changes gear . so obviously needs sorting . I'ts obviously a pick up or multiplug getting wet but i havent a clue where to start . Any help much would be great ,
cheers Al