engine shake - Page 2 - 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 12-29-2006, 03:52 PM   #11
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Call a Pontiac dealer and give them your VIN. My 95 SLE/SC doesn't use the same balancer as a 95Buick Rivier Supercharged. Odd huh?

The dealer will tell you which will work for you based on VIN.
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Old 12-29-2006, 04:15 PM   #12
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Yeah I did that, and they all say the '95 part based on the VIN. Is it possible I got a defective balancer from NAPA and the '94 one is an improvement on that even though it'* still not correct? I'm telling ya, with the 6005277, it ran bad.
What are the chances of there being a better result using an actual GM part. Does NAPA stuff usually work alright?
thanks guys, I apreciate it.
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Old 12-29-2006, 04:17 PM   #13
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I can't tell you one way or the other on the NAPA part, but your odds aren't assured in getting the right part with so many possibilities.

I replaced both of my L67 balancers (93 and 95) with OEM AC Delco Balancers with no issues.
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Old 12-29-2006, 04:33 PM   #14
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Ok, and that'* the part that you would get from GMpartsdirect, #88960264?
If so I might just order that, and see if it improves things and if so, return the '94 NAPA part.
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Old 12-29-2006, 04:58 PM   #15
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GMPD has no return policy. Think twice if you're not sure about the part.
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Old 12-29-2006, 05:39 PM   #16
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thanks guys, great forum!
I'll update with any resolution,
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Old 12-29-2006, 06:26 PM   #17
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Sounds like you're having fun as I did during my week-long balancer fiasco. I got the wrong part 3 times. The fourth was finally right. If you have any shake at idle it is the wrong part. And I know the "out-of-balance" feeling you are explaining. I knew right away that something was wrong. It ran OK for the block that I drove with the wrong part on, but I did not drive it past 30mph because I was afraid of damaging something.

I'm shocked a dealer told you the same balancer fits all 92-95 H-bodies. There are major differences from even the 94 and 95 balancer (not to mention NA vs SC cars). I compared when I did mine. Nothing has to be balanced on a new HB, the differences are there for a reason and fit specific year and model cars.

Good luck!!!
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Old 12-30-2006, 01:21 PM   #18
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Oh I'm having a great time :P
I'm just hesitant to order a '95 part again because it ran so bad before.
Maybe the GM part will be different.
thanks
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Old 12-30-2006, 01:59 PM   #19
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Quote:
Originally Posted by nater23
Oh I'm having a great time :P
I'm just hesitant to order a '95 part again because it ran so bad before.
Maybe the GM part will be different.
thanks
Do you still have the original balancer? It would be nice to have for comparison.
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Old 12-30-2006, 03:26 PM   #20
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Wish I did, that would solve a lot of guessing. I had a mechanic swap out the original balancer and it was a week or so before we started to suspect the new balancer wasn't right. I called him to see if he had kept the original but he had tossed it already.
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