Super charger oil change

1998 BUICK PARK AVENUE
1,670,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC
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CMZANNN
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Leaking water not sure where from. It does not get hot, not a lot. How do i change oil in super charger? squealing noise when start up. After hour or so quiets down. Do not think oil has ever been changed. Help best site on the web.
Dec 21, 2018 at 10:41 AM
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ASEMASTER6371
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Good afternoon.

You need to do a pressure test for the coolant leak. you can rent one at a parts store. that will pinpoint your exact leak.

https://www.2carpros.com/articles/radiator-pressure-test

I am concerned about the super charger. the fact that it is squealing already tells me the damage has already been done. changing the oil may or may not help.

What I do for the oil is to remove the supercharger and drain out the oil. I then clean out the well and then add the new oil. it takes time but worth it to keep it last much longer.

Roy

procedure

1. Remove the vacuum line from the fuel injector rail.
2. Remove the fuel injector rail nuts and stud.
3. Remove the fuel injector rail.


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4. Remove the booster bypass nut and hose.
5. Remove the booster bypass.
6. Remove the regulator valve and the harness bolt.
7. Remove the boost solenoid bolts and hose.
8. Remove the bolts from the vacuum block.


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9. Remove the engine wiring harness heat shield bolt and nut.
10. Remove the engine wiring harness heat shield.


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11. Remove the MAP sensor bracket bolts and hose.
12. Remove the MAP sensor bracket.

Important: Note the location of the spacers and the bolt sizes to aid in installation.


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13. Remove the TBI nuts.
14. Remove the TBI and gasket.


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15. Remove the bolts, spacers, and the stud from the supercharger.
16. Remove the supercharger.


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17. Remove the supercharger gasket.
Dec 21, 2018 at 1:46 PM
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CMZANNN
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Roy, my bad squealing seems to be coming from alternator pulley area wd40 shuts it up immediately. loose tensioner? seems to keep around 12-13 volts coupler on sc? i am sure sc oil not service at least 60,000. i just changed crankcase oil filter.
Dec 24, 2018 at 8:44 AM
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ASEMASTER6371
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if you sprayed the belt and the noise went away, it is a good chance it is the belt. the metal ribs may be showing and the metal ribs against the pulleys will cause the squealing.

If it is the supercharger, then the front bearing is bad and needs to be replaced.

Roy
Dec 24, 2018 at 8:58 AM