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stin 1974
stin 1974, Buick Technician
Category: Buick
Satisfied Customers: 765
Experience:  15 years in transmission and general repair on domestic vehicles.
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1998 Buick LeSabre: a oil leak..oil pressure sensor..fluctuate..guage

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I have a oil leak on my 1998 Buick LeSabre. it is coming from the area of the oil pressure sensor. also i have noticed that the oil pressure seems to fluctuate, on the guage while driving. iwiped it down, started the car and noticed that there was oil on the wiring connector for the pressure switch.
It sounds like your oil pressure switch is going to need replaced. Sounds like its leaking and is most likely the cause for the oil an the fluctuating gauge as well.
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