i've got it down to the motor, i changed the relay and switch, sometimes the wipers work, but after a few sweeps the start on speed 1 again.   question is, is there a way of testing the motor? or is it pot luck from a scrap yard?

has anyone else encountered this problem as with most 14yr old cabs mine is due its mot so began the usual search for poss issues with it passing oh how i wish i had never started looking new rear axel new rear disks pads callipers new wish bones trackrod ends tie rods cv boots tyres two visits for tracking and full oil change drive belt and how do you think it repaid me well during acceleration it decided to start pulling hard to the left trust me this gave me quite a fright unsure of the probl

just wondering if anyone could help me?   looking at up-grading front and rear.can anyone tell me what size i will be lookin for?   went down to local motorworld,went in ask the guy if he had a book to tell me what im looking for,guy came back after 5 mins said we did have one buts someone stole it (lol) so he went away ask someone else came back and said sorry cant help you......thought well thats good