I have a 1995 supercharged Riviera. I want to put

1.Jack up the vehicle
2.Place a rag under the supercharger bolt hold you will remove
3. Remove supercharger bolt, some oil may come out but not much.
4.**** out the old oil
5. Lower the car back down
6.Fill the supercharger oil
7.First time driving after change

Superchargers work with most engines but the engine has to be build to handle it or you will blow your engine. You can get a kit online to build the engine to handle it & install the super charger but costs are starting around $2000 and up.

Yeap your describing a supercharger bearing failure it'll lock up after a while, It can be rebuilt with new bearings but the directions aren't known to me as I've just replased the whole unit. The intake and waste gate gaskets van blow too and you can find the leak with wd-40 or carb spray as when you hit the leak it'll change the way it runs. You may also need to remove the crankcase vents and stop them up to see if you have a leak to the crankcase ( intake gasket leak) The normally assperated engine did this quite alot but theirs few less supercharged ones and I've only changed blown bolwers that won't turn and the cases were so scared up that they could'nt be rebuilt. Oriley shows a unit in thier Knoxville warehouse and it's rebuilt. Find the rattle and fix it and you'll save a ton of money as the repair may seem expensive but the new charger will set you back much more and the work is about the same.

Hello lysiphlebus2,

((My thoughts: cold START valve IAC at very bottom))

Plenty of places will do FREE diagnostic code reads.

I would rather suggest it be a muffler shop than
AUTOZONE... but either is better than guessing.

AUTOZONE will likely make you buy OXYGEN
sensors... (but that makes about as much sense as
buying a new THERMOMETER every-time you
have a FEVER.

What you are describing sounds (from an old
mechanic's perspective) like a collapsing
catalytic convertor or rotted muffler baffle
(a slightly better blockage will halt operation
completely)...

((again speculation... get your codes read))...

Do not buy OXYGEN SENSORS....

Know your prices before waltzing into any
exhaust shop.

AMAZON
1 24 of 108 results for Automotive 1995 riviera catalytic 1995 riviera...

rockauto
1995 BUICK RIVIERA 3 8L V6 Supercharged Catalytic Converter RockAuto

IAC (cold start valve)
1995 BUICK RIVIERA 3 8L V6 Supercharged Idle Air Control IAC Valve RockAuto

Hope this helps

Carnac the Magnificent

If when you try to start the engine all the gauges and lights go dim on the dash, you have a bad,dirty or corroded battery cable. If your gauges and lights do not dim then its probably a bad starter solonoid. They will work off and on when they start to go bad.

I get credit when you rate my answer..............Thanks

there is an a ideler pully that is at the very bottom on the engine u have to move that and put the belt on there i think if u put it on the super charger first then the powersterring pump

check compression possible burnt valve check fuel pressure check ignition componants

you will most probably need a beefed up tranny to take the power of the engine, I have just installed a 350 supercharged chevy motor in my sons car with a Turbo 350 transmission and a shift kit which I have been told by an auto trans mechanic may not take the power of that engine.
It is costing him $1500 australian to have it reconditioned so I hope it will survive the rides

In A chilton repair manual at the library.

you can not put a regular 3800 intake in place of the 3800 super charged engine,the compression ratio is lower than the regular 3800 engine.......!