Question about 1997 Oldsmobile Bravada

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Serpentine belt on Olds 97 Bravada

The serpentine belt came off while driving. It is not worn or looking bad anywhere. We had the water pump replaced in October. The alternator is 3 yrs old. How do we replace it and are there any diagrams anywhere to show the configuration of the belt.

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I would suspect a bad 'tensioner' pulley. When you get the new belt on, try to pull up on the uppermost part of the belt by hand - if it moves you should replace the tensioner (as this is what 'holds' your belt on). I can't seem to find a routing diagram so if it's not on a sticker under the hood or in your owner's manual try the local GM dealer...they have to have one. Good luck!.

Posted on Jan 11, 2009

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3 Answers

Squealing


My first impression would be the serpentine belt is worn ...specifically it has "glazed" and stretched so it no longer has the ability to effectively grip the drive pulleys it spins. Typically when the serpentine belt loses "traction" it will squeal as it slips on the metal pulleys of the accessories it is designed to operate. There also may be a problem with the the tensioner ...a device used to keep proper tension on the serpentine belt. This is an easy and relatively inexpensive repair ...probably cost between $100 and $200 ...depending on whether the tensioner needs replacing.
You really need to get this fixed. If the serpentine belt fails ...it breaks or comes apart ...you will lose power steering and the water pump as the two critical accessories the belt operates. Obviously the loss of power steering can make the car difficult to drive and the loss of the water pump will cause an engine overheat condition fairly quickly. The A/C and alternator will also drop off line but these aren't as critical as the steering and water pump.

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Serpentine belt chevy astro


You have a worn out crank damper pulley that shifts the belt alignment or tracking or water pump going bad & pulley moving
in & out or other pulley or bracket issues.
You know the answer to the 5 verse 6 ribs & the chewed up belt
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Jun 04, 2013 | Cars & Trucks

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What is the serpentine belt routing for olds bravada with 4.3 and a/c


What year? Typically starting at the crank pulley the belt will go around the water pump then to the power steering pump then to the ac compressor then under the idler pulley then to the alternator then to the tensioner and then ending back at the crank pulley. Some older models have the tensioner in a different location but the routing is almost identical.

Apr 09, 2013 | Cars & Trucks

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Serpentine belt


Application:
With A/C


2.image

Kia_Sedona_2002-2006
Accessory Drive Belts

Print


Accessory Belt Routing



0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt (A) routing-3.8L engine


Inspection

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Rotate the auto tensioner clockwise to release tension, then remove the drive belt.

To install:
  1. Install drive belt (A). Route the belt over the components in the following order: Crankshaft pulley - A/C pulley - idler pulley - generator pulley - water pump pulley - P/S pump pulley - tensioner pulley.
  2. Rotate auto tensioner arm in the counter-clockwise moving auto tensioner pulley bolt with wrench.
  3. After putting belt on auto tensioner pulley, release the auto tensioner pulley slowly.

    0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt routing-3.5L engine


    0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt (A) routing-3.8L engine


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My 1996 oldsmobile acheiva is leaking antifreeze but it doesn't seem to be a leak in the radiator. Could my water pump need replacement?


Sounds like the radiator is OK...if you cannot see any visible leaks...if you have inspected upper and lower radiator hoses and connections...it could be the water pump...however you should be able to see some antifreeze around the water pump pulley...changing the water pump on your Oldsmobile is not a major job...you do not have to remove any motor mounts to do this...only if your serpentine belt is worn and needs replacement...your Olds will require the removal of the upper motor mount in order to change the serpentine belt...sounds like you are on the right track...:)

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Is the 2002 Buick Rendevous 3.4L CXL water pump driven by the timing belt?


no, it runs on the serpentine belt:



3.4L Engine

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the coolant from the engine.
  3. Remove or disconnect the following:

    Negative battery cable Serpentine drive belt guard Loosen the water pump pulley bolts Serpentine drive belt Water pump pulley Water pump Water pump gasket

To install:
  1. Clean the gasket mounting surfaces.
  2. Install or connect the following:

    Gasket Water pump. Torque the bolts to 89 inch lbs. (10 Nm). Water pump pulley and hand-tighten the bolts at this time Serpentine drive belt Water pump pulley bolts to 18 ft. lbs. (25 Nm) Serpentine drive belt guard
  3. Fill the cooling system.
  4. Start the engine and check for leaks, repair if necessary.
  5. Road test the vehicle and verify there is no air in the cooling system.

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1 Answer

Need diagram 1994 oldmobil 88 drive or serpentine belt diagram


Easiest way here is to get a paper and pencil
Make a drawing of all your pulleys with the crank on the bottom and Water pump above it, then all the rest of the pulleys . Not which ones have grooves and smooth sides. Now lay the is out in fron fo you and draw a lineat the bottom of the crank and go counter clockwise to about 12 o'clock then clockwise around the water pump and look to you right and see what could be next. My guess is the A/C, counterclockwise, then whats next, continue doing this until you get back to the starting poing of the crankshaft. You may have to try 2 different times, but I'm sure you will get it and compare it with the one Checkers gave you. It may be close in theory .

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Looking for diagram of serpentine belt


0996b43f80208ca1.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Serpentine accessory drive belt routing-3.0L (VIN U) engine


0996b43f80208ca2.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Serpentine accessory drive belt routing-3.0L (VIN S) engine


0996b43f80208ca1.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Serpentine accessory drive belt routing-Ford 3.0L (VIN U) engines


0996b43f80208ca2.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Serpentine accessory drive belt routing-Ford 3.0L (VIN S) engine


0996b43f80208c9f.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Serpentine accessory drive belt routing-Ford 3.4L SHO engine


0996b43f80208ca0.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Water pump drive belt routing-Ford 3.4L SHO engine
i wasnt sure what engine you had hope this helps good luck

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1 Answer

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You say belt driver? The belt runs on a series of pullys, there should be a pic./diagram on the radiator support that shows the routing of the belt. simply take the belt off and check each pully( they will either drive the belt or be idlers/tension pullys)to see which one has any "side to side" motion. If it is on a "driver" you are looking at replacing that part(water pump,power steering pump. etc.), as the real problem will be a bad bearing in that unit.

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Chirping Noise


you need to change the water pump

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