If it's like Momma's 91Brougham 5.7 litre there is a tensioner pulley
that swings up or down and then you slip the belt off. Look for a small
pulley with either a 18 mm nut on it or a square hole for a 3/8 or 1/2 '
drive ratchet to fit into.
1991 Pontiac Bonneville LE
What particular car are you speaking of? I know my 98 GM pickup has a
tensioner pully that you slip a 3/8" ratchet head into and turn CClockwise
about a quarter to third of a turn with one hand, and use the other to slip
the belt off, then CAREFULLY release tension on pully. To replace reverse
the procedure, but you will need to turn lots more than what you needed to
remove the belt usually. Course not knowing what partiucular car you are
speaking of i am just making a wild ass guess.
I finally got to the part that I supposed to lift up using a 1/2 inch
ratchet and was able to lift up the pulley so I could remove the belt and I
have successfully replaced the belt. Once again, thanks to everybody who
replied to my message and I appreciate you for your help.
the 4.9L ??? there's a spring loaded tensioner. pay close attention
tot he water pump pulley bolts. they're famous for cracking the
pulleys around the bolt holes on these, and the pulley usually gives
out shortly after the new belt goes on.
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