2008 550i Grind/Power
#11
Members
Thread Starter
Join Date: Oct 2009
Posts: 32
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2008 BMW 550i
Use a mechanics stethoscope like this one:
Mechanic's Stethoscope
This helped me diagnose a bad water pump among others. I had a tensioner (adjacent to alternator) that squealed so loud, kinda like a horny cat in the middle of the night. Applied some spray lube on it and the noise went away. Good luck.
Mechanic's Stethoscope
This helped me diagnose a bad water pump among others. I had a tensioner (adjacent to alternator) that squealed so loud, kinda like a horny cat in the middle of the night. Applied some spray lube on it and the noise went away. Good luck.
Thread
Thread Starter
Forum
Replies
Last Post