Buick Repair Questions? Ask a Mechanic for Answers ASAP
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You will have to tap into where the oil pressure sender is located which is just above the engine oil filter on the engine oil filter housing as seen here.
The sender will need removed and then in order to keep the engine oil pressure light from coming on an adapter threaded into the port on the housing so that the oil pressure sender can thread back into this adapter then a second port on the adapter be used to thread in the fitting for the after market gauge you want to install.
This company here may be able to help with an adapter or you might check with your local parts store telling them what you want to do here so they can put together or order in an adapter that connects the sender and a gauge.
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