deeper than a belt issue - 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 06-29-2007, 06:08 PM   #1
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Default deeper than a belt issue

so uh, i barely made it home the other night because my serpentine belt fried....not a big deal....but then i realized that it was because the pulley on what seems to be the water pump or main pulley wiggles all over the place. I can just see that this sucks. I need to know what to do. Please someone advise...thanks so much.
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Old 06-29-2007, 07:50 PM   #2
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more than likley its a idler pulley but the one you wiggled was it bigger or smaller ?
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Old 06-29-2007, 11:26 PM   #3
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Nah, its not an idle pulley.... it was a bigger....to me it looks like what should be the main pulley but a buddy from work says its the water pump.....I wish I knew more....thanks
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Old 06-30-2007, 09:04 AM   #4
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You need to replace either the water pump or the harmonic balancer. If it is the big smooth pulley halfway down, you need to replace the water pump. If it is the even bigger, grooved pulley just below the water pump at the bottom of the engine, you need to replace the harmonic balancer.

This image is of a '95 Series II, but your '94 engine will be similar.
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Old 06-30-2007, 11:14 AM   #5
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so it is the water pump after all....do I need to know any torch specs to replace it or no???
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Old 06-30-2007, 11:38 AM   #6
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I assume you mean torque specs.

They are in Techinfo. Link at the top of the page. You'll need to support the engine with a jack and block of wood on the oil pan, and remove the monster torque-axis engine mount to remove the water pump bolts.
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Old 06-30-2007, 09:28 PM   #7
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uh oh, so is this a job for someone who can diagnose cars pretty well but never seem to be able to put them back together??? how long does it take??? what other parts/gaskets etc. would I need to do the whole job??? Also I looked in the tech info for the torque specs but only saw for the supercharged engine....I can't imagine it would be the same for my SE right???
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Old 06-30-2007, 09:51 PM   #8
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The specs for every 92-99 are there. Please read again.

If you don't have a service manual of some type, and you've never done this before, don't do it.
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