help chg'n belt and water pump 1998 Bonneville - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-16-2005, 01:46 PM   #1
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Default help chg'n belt and water pump 1998 Bonneville

I see my serpentine belt has some light cracks in the cogs, its a Gator Back belt, should I chg it ?? If so whats the step by step to getting it out the motor mount ?? Also should I chg the waterpump sometimes it seems like I hear a wirring noise when its cold then it sorta goes away and it seems like its coming from the pump but no leaks. The car has 175k on it now and runs great and the body is real nice so im gonna keep her for a while. thanks for the help fellas !
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Old 11-16-2005, 02:35 PM   #2
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Water pump change procedure is in Techinfo. You need to disassembly PART of the mount while supporting the oil pan with a jack and a block of wood.

A few cracks on a belt won't kill you, just keep an eye on it. Your power steering pump is the most likely cause of whining when cold.
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Old 11-16-2005, 03:04 PM   #3
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don't see anyhting re changing belt or waterpump on techinfo for a 98 series 2 SLE ????
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Old 11-16-2005, 03:20 PM   #4
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The tech info is there and although it says 97 SSEI, it should be applicable to your SLE

Also, if you use the "Search" function and type in "belt" or "waterpump", then select the "92-99 Mechanical" section and hit the search button, many posts can be found. Here are some...if you still have further questions, post again.

http://www.bonnevilleclub.com/techinfo/?article=48

http://www.bonnevilleclub.com/forum/...40&highlight=A

http://www.bonnevilleclub.com/forum/...94&highlight=A

http://www.bonnevilleclub.com/forum/...39&highlight=A
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Old 11-16-2005, 05:18 PM   #5
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why in the world would you remove the power steering pump to remove the waterpump ?? Its in the back of the engine. It looks like all you do is remove the belt,remove the pump pulley, remove the bolts on the pump and off she comes. Its a 98 SLE has anyone done this one before ? Man I can't see what the power steering has to do with it or why any motor mount bolts have to be touched ????



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First jack up the passenger side of the car, place a support jack underneath and remove the wheel. Then remove the protective shields in the wheel well on both sides of the shock (fender liner). This gives a little easier access to the power steering pump and tension wheel behind the engine mount.

Remove the negative battery cable. Remove the Supercharger drive belt and the accessory drive belt. Drain the coolant. Remove the pulley wheel the belt goes on from the water pump. Gives you more room. Unbolt the power steering pump and set to the side where it is. Place a floor jack under the engine and support it with a block of wood covering the oil pan and transmission. This supports the engine so that the motor mount can be removed. Unbolt the center bolt from the motor mount. Then unbolt the top two bolts on the frame of the motor mount and only loosen the two on the side of the frame. Remove the mount attached to frame. I removed the bolts on the side of the frame, but remember to put them back before you remount the engine bracket. Unbolt the mount attached to the engine itself, three places. Take care to make sure the nut and stud both come off. You will need to be able to maneuver the engine support bracket around. I left it in place pretty much and just moved it around as needed.
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Old 11-16-2005, 06:19 PM   #6
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The reason for removing the power steering pump is to get at one of the motor mount bolts. (That bolt is nicely located behind the power steering pump), then once that bracket is off the water pump comes off. I recently did this procedure myself. PM me for a phone number if you want to ask questions and need quicker responses
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Old 11-16-2005, 06:38 PM   #7
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the motor mount is no where near in the way of the waterpump ?? I can see now that you may have to remove the PS pump but only because there is one WP bolt right behind the lip of the PS pump but the motor mount is NO where near causing a problem taking the WP off as far as I can see, again its a 1998 SLE
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Old 11-16-2005, 06:41 PM   #8
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this is off another post awhile back

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You will simply break the water pump pulley bolts loose, remove the belt, remove the water pump pulley bolts...

Then you will remove the 2 bolts from the power steering pump, 1/2" I think... Push the PS pump out of the way being careful not to hit the oil pressure sending unit...

Remove the bolts from the water pump, pull the water pump, clean the mating surface, install the new pump and gasket...

Then do everything else in reverse order...

The L36 is a very easy engine to change a water pump on..
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Old 11-16-2005, 07:37 PM   #9
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Sounds good..roll with that.
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Old 11-17-2005, 10:32 AM   #10
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Default Re: here

Quote:
Originally Posted by cvc
this is off another post awhile back

Quote:
You will simply break the water pump pulley bolts loose, remove the belt, remove the water pump pulley bolts...

Then you will remove the 2 bolts from the power steering pump, 1/2" I think... Push the PS pump out of the way being careful not to hit the oil pressure sending unit...

Remove the bolts from the water pump, pull the water pump, clean the mating surface, install the new pump and gasket...

Then do everything else in reverse order...

The L36 is a very easy engine to change a water pump on..
Yes I wrote that...

You remove the Power steering pump as there is a water pump bolt behind the pulley, and you will not be able to remove that bolt unless the PS pump is pushed out of the way...

As for the Belt, there is a spacer that is located under or near the crank sensor that has to be removed to replace the belt, you need to be very careful when doing this as you could possibly break, snap or destroy the Crank sensor and or connector...

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