GM Loose serpentine belt

I have a 1989 GMC Safari with 4.3L engine. My serpentine belt runs
from my tensioner to my alternator, down to power steering pump, up to
water pump, down to crankshaft, up to A/C compressor. Van was making
noise. I noticed that the tensioner is at maximum deflection (straight
down). I removed the belt and inspected that no pulleys were loose.
Belt is in good shape. I have heard the accessory bracket can crack,
but I don't see any cracks. It seems that the most likely part to have
moved is the power steering pump. Could that bracket have bent? Any
thoughts? I'm stumped.

Barry

On Aug 12, 10:13 am, (Barry Minchey) wrote:
> I have a 1989 GMC Safari with 4.3L engine. My serpentine belt runs
> from my tensioner to my alternator, down to power steering pump, up to
> water pump, down to crankshaft, up to A/C compressor. Van was making
> noise. I noticed that the tensioner is at maximum deflection (straight
> down). I removed the belt and inspected that no pulleys were loose.
> Belt is in good shape. I have heard the accessory bracket can crack,
> but I don't see any cracks. It seems that the most likely part to have
> moved is the power steering pump. Could that bracket have bent? Any
> thoughts? I'm stumped.
>
> Barry

Wrong belt. (to long)
Belt installed wrong.
Tensioner bad.

belt wasn't too long when I installed it
It was installed correctly and has been driven 6 months
Tensioner is not bad because it is trying to take out the slack but
has to go to its max displacement to do so

On Sun, 12 Aug 2007 07:42:52 -0700, dahpater >
wrote:

>On Aug 12, 10:13 am, (Barry Minchey) wrote:
>> I have a 1989 GMC Safari with 4.3L engine. My serpentine belt runs
>> from my tensioner to my alternator, down to power steering pump, up to
>> water pump, down to crankshaft, up to A/C compressor. Van was making
>> noise. I noticed that the tensioner is at maximum deflection (straight
>> down). I removed the belt and inspected that no pulleys were loose.
>> Belt is in good shape. I have heard the accessory bracket can crack,
>> but I don't see any cracks. It seems that the most likely part to have
>> moved is the power steering pump. Could that bracket have bent? Any
>> thoughts? I'm stumped.
>>
>> Barry
>
>Wrong belt. (to long)
>Belt installed wrong.
>Tensioner bad.

On Aug 12, 12:27 pm, (Barry Minchey) wrote:
> belt wasn't too long when I installed it
> It was installed correctly and has been driven 6 months
> Tensioner is not bad because it is trying to take out the slack but
> has to go to its max displacement to do so
>
> On Sun, 12 Aug 2007 07:42:52 -0700, dahpater >
> wrote:
>
>
>
> >On Aug 12, 10:13 am, (Barry Minchey) wrote:
> >> I have a 1989 GMC Safari with 4.3L engine. My serpentine belt runs
> >> from my tensioner to my alternator, down to power steering pump, up to
> >> water pump, down to crankshaft, up to A/C compressor. Van was making
> >> noise. I noticed that the tensioner is at maximum deflection (straight
> >> down). I removed the belt and inspected that no pulleys were loose.
> >> Belt is in good shape. I have heard the accessory bracket can crack,
> >> but I don't see any cracks. It seems that the most likely part to have
> >> moved is the power steering pump. Could that bracket have bent? Any
> >> thoughts? I'm stumped.
>
> >> Barry
>
> >Wrong belt. (to long)
> >Belt installed wrong.
> >Tensioner bad.- Hide quoted text -
>
> - Show quoted text -

If everything is fine, your belt was/is to long.

i agreen get a different belt


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"Barry Minchey" > wrote in message
...
> belt wasn't too long when I installed it
> It was installed correctly and has been driven 6 months
> Tensioner is not bad because it is trying to take out the slack but
> has to go to its max displacement to do so

I have seen some aftermarket belts, which are supposed to be exact
replacements, be too long or too short. And, not all aftermarket belts
may be of equal quality to the OEM. Maybe your belt has stretched?

Last, I had a heck of a problem with belts on a GM Fiero after a
factory recall. Seems the dealership mechanics cut some corners,
did not reassemble the pulley and tensioning system correctly after
the engine work was completed. It was a continuous problem with
belt slippage, etc, until I got it up on a rack, assessed the problems
which the mechanics had caused, and refitted and adjusted everything
correctly.

On Aug 12, 10:13 am, (Barry Minchey) wrote:
> I have a 1989 GMC Safari with 4.3L engine. My serpentine belt runs
> from my tensioner to my alternator, down to power steering pump, up to
> water pump, down to crankshaft, up to A/C compressor. Van was making
> noise. I noticed that the tensioner is at maximum deflection (straight
> down). I removed the belt and inspected that no pulleys were loose.
> Belt is in good shape. I have heard the accessory bracket can crack,
> but I don't see any cracks. It seems that the most likely part to have
> moved is the power steering pump. Could that bracket have bent? Any
> thoughts? I'm stumped.
>
> Barry

Check to see that all the components spun by the drive belt are
tightened down.