Engine Vibration
2,325

Asked by Alvin May 18, 2013 at 09:44 PM about the 1995 Buick Riviera Supercharged Coupe FWD

Question type: Maintenance & Repair

In a previous post I asked for help in resolving an engine vibration in my 1995 Supercharger Riviera. Well I am back.
Since that post and in an effort to stop/minimize the problem I did the followings with NO AVAIL. Changed ALL the motor/trans supports ; pulled the oil pan and checked the crankshaft for lose rods; pulled the front plate and replaced all the gears and chains, checked the balance shaft, checked the coil packs, replaced the supercharger and replaced several MAF sensors. And yes I had a transmission company checked to determined if maybe it was the trans. even though the vibration is present when the transmission is in parked/neutral. And yes I have changed several harmonic balancers. Is there something I missed????? Thanks.

4 Answers
2,325

Alvin answered 10 years ago

Well readers I finally figured out what was causing the engine vibration. It was the harmonic balancer. Obviously GM in its infinite wisdom decided to have two different harmonic balancers and 6-8 different aftermarket part numbers for that year model. And I not knowing this threw away my original part which included the parts no. But after many changes I realized my Riviera required the balancer with the larger balance bar. Word of advice, please keep the original part and or parts' number until problem is resolved.

3 people found this helpful.
Mark helpful
10

Taylor answered 10 years ago

Hello I have the same problem and im just wondering what is the original part number!? My Riviera vibrates and sounds like its only firing on 5 cylinders when it does run on 6. I replaced the harmonic balancer but I am thinking I may have the wrong one. But I threw away the old one. Thanks

1 people found this helpful.
Mark helpful
2,325

Alvin answered 10 years ago

Alvin1966 answered about a second ago Say Taylor..I corrected my problem with Part Number: 88960264. This balancer as compared with all previous balancers has the long or large bar located (inside/backside) of balancer. Good Luck.. Semper FI

Mark helpful

Your Answer:

Related Questions

  • Engine Vibration 4 Answers

    In a previous post I asked for help in resolving an engine vibration in my 1995 Supercharger Riviera. Well I am back. Since that post and in an effort to stop/minimize the problem I did the followings...

    1995 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

  • Can overfilling with oil (about 1.5 qts) cause engine vibration? 11 Answers

    1995 Buick Riviera

    -

    Maintenance & Repair

  • 1998 Buick Scan Code for Service Engine Light being on 21 Answers

    I got the code P0304 when I hooked up to the scanner at the auto store. I took the print out to a reputable mechanic and he practically dismissed it and seemed to not be able to interpret what it mea...

    1998 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

  • 91 Buick Riviera. transmission slipped, check engine light went on and speedometer quit working. 3 Answers

    The tranny slipped, check engine light went on, and speedometer quit working. Car will shift if I start in low gear and manually shift it.

    1991 Buick Riviera

    -

    Maintenance & Repair

  • What is wrong with my check engine light? 2 Answers

    I spent 2 hours this morning taking off the stubborn dashboard on my 98 Buick Riviera to get to the light bulbs for the warning lights. I replaced the light bulb for my check engine light (because m...

    1998 Buick Riviera Supercharged Coupe FWD

    -

    Maintenance & Repair

Riviera

Looking for a Used Riviera in your area?

CarGurus has 1 nationwide Riviera listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Buick Riviera Questions

CarGurus Experts

  • #1
    Alvin Stokes
    Reputation
    1,960
  • #2
    Chris Kelley
    Reputation
    930
  • #3
    Jason Gee
    Reputation
    590
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
7 Great Deals out of 96 listings starting at $3,531
Used Lincoln Town Car
3 listings
Used Lexus LS
4 Great Deals out of 30 listings starting at $9,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.