Squeak near the serpentine belt

SOURCE: Buick Lesabre squeaks when idling and accelerating

You do not have a timing belt

You need a mechanic to actually listen
to & diagnose those issues

Not something one can do over the internet

SOURCE: installing the serpentine belt

The power steering pump is only held on by two bolts that are removed thru the pulley holes. Anyway you don't have to remove the whole motor mount just remove the nut that holds the mount just to the left of the balancer. then remove the stud with a inverted torx bit. then remove the sleeve the stud went thru and then the belt will come off.

SOURCE: I replaced the water pump and cut the old serpentine belt out that was tangled around the pulleys Now I cannot figure out how to get the motor mount off to get it up around the alternator pulley

Here's a link to a web site to give you a diagram for your serpentine. Just insert the year,make,model, and engine size. Once there, you will see to the left a link below the part number called "Routing diagram". Best of luck on your repair.
Greg

http://www.mvreader.com/multiview/dayco/index.php?bgInterchange=1&l=n

Stan Cather

• 414 Answers
• Posted on Jun 27, 2009

SOURCE: Easing tension to replace water pump

You may not need a serp tool. Look for a place on the tensioner to fit your ratchet into then turn to push tension off. If there is enogh room to get the ratchet in

SOURCE: screech in engine. after serpentine belt stops

Check if screeching is related to engine vacuum.
Briefly remove (or loosen off) the oil filler cap - if noise immediately stops high crankcase vacuum is the cause. Check / replace PCV valve to fix.
If above is not the cause, listen with a short length of hosepipe to try and narrow down noise source.
Silicon lube spray or pencil lead graphite on a selected belt should cause sound change if it's caused by that belt.