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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 02-26-2009, 09:13 PM   #1
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It'* me again, if it isn't one thing it'* another. I have a leak at my water pump now. I already have the new pump, gasket, everything. Now is there a way to change the water pump WITHOUT lifting the engine. Once again this is a 1992 Pontiac Bonneville SE.
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Old 02-26-2009, 09:15 PM   #2
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You should be able to support the engine from below and remove the motor mount on the passenger side. That will give you clear access to the water pump. Make sure it is the pump and not the elbows.
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Old 02-27-2009, 08:35 AM   #3
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Fun is in your future. The worst time is the first time.

Two ways..of doing this, I've hear of a couple people that were able to wiggle the pump in and out w/o removing the motor mount bracket. They said it was tough, but possible. The other way is below.

Jack and support the passenger side at about normal ride height or as low as yoru jackstands go. Remove the passenger tire and splash shields. Using some block of wood for oil pan protrection jack the motor lightly to remove the pressure from the main passenger motormount bolt. Here'* a picture of that bolt.


Once that bolt is removed, lower the motor slightly to remove pressure off the mount brackets.

Crawl under the passenger side and loosen (don't try to remove) the two 15mm bolts that hold the bottom of the body side mount. The mount can be lifted w/o taking the bolts out.
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From the top remove the 2 15mm bolts that hold the body side bracket to the car. Slight tweaking of the AC lines will be necessary. At this time also fight the plastic piece holding the AC lines to the body side bracket. Wiggle and lift the bracket out of the engine bay.

IIRC your motor mount bracket does not bolt up behind the power steering pump. If one bolt is back there, you need to unbolt the pump and let it lay in the bay. Once the bracket is off, the WP should be easy to get at.
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Old 02-27-2009, 04:27 PM   #4
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I thought about trying to wiggle it out without removing the mount. Myonly issue with that is I don't have a ratchet small enough to get in there and get the bolt out. Thanks for the photos, I'm sure I will get it taken care of.
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Old 02-27-2009, 05:41 PM   #5
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Here is a write up about removing the water pump.

https://www.gmforum.com/t279222/
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Old 02-27-2009, 05:55 PM   #6
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Nice writeup Dan, being for a series 2 motor and him having the series 1 motor can change enough things materially where it might only serve as a general guide. Something is always better than nothing though as long as it'* noted this is specific to a series 2 motor.
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Old 02-27-2009, 05:57 PM   #7
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That'* all that is is a general guide Bill. Only covers the water pump, not things like motor mount and such.
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Old 02-27-2009, 09:14 PM   #8
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Thanks for all the advice. Looks like I'm gonna be fighting with a pain in the butt motor mount this weekend LOL. Thanks all!!!
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