has anyone had to mess with the interval wipers on an 87 fox ..the issue i'm having is only high speed and blade doesn't return to bottom of cycle unless you time it right . I've changed the motor and multi switch . I know on my 96 F150 there is a interval wiper governor module . but I can't find any info on weather the stang has 1 or the location of it . And typical Ford dealer answer was too old can't help you . It's driving me nuts so any info would be great ..............thanks