Originally Posted by noid
I need to diagnose why my pump is whining. Would be great if someone had an extra laying around (maybe from a parts car) they could lend me to make sure im not dealing with a pre-pump issue, or an FPR issue with my 1987 325is.
I am around the North York/Toronto area.
A buzzing pump or whining pump? you can usually hear it with the car on. the 87 pump I believe is a duel internal and external. Late models changed up.
where do you hear the whining from?