93 SSEI Supercharger Rattle I think?? - Page 3 - 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 02-05-2009, 07:49 PM   #21
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If the price is right, ya, get them. Even if just for parts. The coupler shoudl be fine on them.
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Old 02-06-2009, 12:56 AM   #22
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the m90s are for the series 2 motors and i know they will NOT bolt onto the intake manifold on a series 1... good for parts tho, or a motor upgrade, or POSSIBLY... putting on a intake off a series 2? think'n the block is the same, right?, couldnt one use the newer intake and the newer supercharger? just wishful thinkin and possible help to others
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Old 02-06-2009, 08:06 AM   #23
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The 95 Buick 3.8 is going to be an M62, aka the same charger you have wihich is good. Check the coupler on it by turning the pulley back and forth quickly. Any clunking and it'* no better than yours.

The Ford M90'* are a different monster from the GMs. And the GM S1 vs S2 heads are totally different that make it impossible TMK to bolt one up easily. Easily being the key.
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Old 03-24-2009, 04:02 PM   #24
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I have a 93 SSEI from birth. 180K km. 110K miles. Has similar noise problems - first thought to be SC tensioner - but that has been replaced by dealership and noise still there and as you describe.
Where in Calgary Alberta - can I get good diagnosis and treatment.
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Old 03-24-2009, 04:12 PM   #25
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Try taking the belt off and turning the pulley for the supercharger. Is there any slop there? If so you need to change the coupler.
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Old 03-24-2009, 04:24 PM   #26
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Gearhead: Have read your many posts re this problem and learned a lot. Thank you.
Is it too much to expect that the Pontiac dealership that has serviced car from day 1 might have done this when changing of SC tensioner that they thought was the source of problem. They now think it is the SC making noise - but have not mentioned the coupler. The noise disappears with increased RPM. And car performs as it always did.
I am not about to change anything until I have reliable assessment.
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Old 03-24-2009, 04:29 PM   #27
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Quote:
Originally Posted by Warren View Post
Gearhead: Have read your many posts re this problem and learned a lot. Thank you.
Is it too much to expect that the Pontiac dealership that has serviced car from day 1 might have done this when changing of SC tensioner that they thought was the source of problem. They now think it is the SC making noise - but have not mentioned the coupler. The noise disappears with increased RPM. And car performs as it always did.
I am not about to change anything until I have reliable assessment.
I think that you need to have a discussion with your dealership. If they diagnosed a problem and told you what needs to be fixed, fixed it, and the problem is still there - they are obliged to do you right. The coupler is located within the SC snout and a pretty easy fix.
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Old 03-24-2009, 04:39 PM   #28
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Do the test I suggested. It will tell you 100% if the coupler is good or bad.

Here'* the sound.


Here'* the test.
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Old 03-25-2009, 04:41 PM   #29
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Ok It has been a while but yesterday i finally had the time to tackle my supercharger coupler,(which was a lot easier than i anticipated) So after changing coupler,cleaning injectors, changing gaskets. and SC oil, I put it all back together and started her up...........AND...the rattle was still there....so I am stumped..i did the screwdriver test to listen for vibration and to my untrained eyes and ears i would swear the sound is coming from the belt tensioner....this is so odd I thaught for sure it was the coupler because the rattle stopped whenever rpms hit 12-1500....Could it be as easy as the tension pully?? If not the only other thing it could be is the water pump? Any guidance from our experts would be greatly appreciated......thanks Jay
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Old 03-25-2009, 04:44 PM   #30
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Take the belt off again and turn each pulley and listen, as well as feel. This is why I suggested doing the test first. It'* best to test before throwing parts at the problem.
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