1991 Buick



October, 20, 2008 AT 8:04 AM

Engine Performance problem
1991 Other Buick Models 6 cyl Front Wheel Drive Automatic 150000 miles

just got car. Dont have any history. Runs great dont smoke just a gem in all aspects. Spuratically can go to start and runs rough, blue smoke out exhaust and dripping raw gas. Can shut it off and good chance 1 hour later will run great again. Looking for a good starting spot I know nothing about history or where to start. Not a straigh 6 so im lost

1 Answer



November, 17, 2008 AT 4:58 PM

When you notice the gas, how badly is it running? Does it sound like you have a few dead cylenders? Is the smoke actually oil burning or does it run extreamly rich? If it's rich, I would first check the fuel pressure regulator. If it's oil, take a look at the intake gasket. Also, take it to a nationally recognized parts store and have them scan the computer for codes. See if anything has been stored in the computer.

Let me know what you find.


Please login or register to post a reply.

Replace Muffler
Replacing Head Gasket
Replace Fuel Pressure Regulator
Catalytic Converter Replacement Volkswagen