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Jim
Grant has been working in the automotive industry for over twenty
years. In addition, Jim is an ASE Master Technician with advanced
L/1 certification. He works as manager and technician in his
family's automotive business in New Hampshire. He writes weekly
automotive consumer columns and is editor of an automotive newsletter
that is circulated throughout North America. |
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Jim Grant's Tech Tips
'94 Buick Park Ave, Bad Super Charger Bearings?
Q:
I have a ‘94 Buick Park Ave Ultra with a 3.8 supercharged motor.
I hear a lot of weird noises especially when stopped in drive. It sounds
like a bearing or something grinding. I have had the transmission checked,
and they said it was OK. Any history of Superchargers making bearing noises
under a load condition?
A:
Isn’t
the supercharger on your engine belt driven? If so remove the belt and
rotate the supercharger’s pulley by hand. It should feel as smooth
as silk. If there is any binding or roughness the supercharger has a problem
and needs service. Do not operate the vehicle if the supercharger is failing.
A failing supercharger can blow a hole in a check book like you’ve
never seen.
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