Ever have this happen to you ??????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

piecesparts · 06-23-2004, 11:21 PM

I have this 91 Chevy Silverado (5.7 litre engine) that the oil gauge keeps jumping around. I have changed the sending unit twice and also connected a gauge to the engine to check the pressure. The pressure is real good and it is steady on a gauge connect directly to the motor (around 30 psi idling and >45 psi when RPMs are up). The gauge, on the other hand jumps from 45 to 15 then back up again on an irregular basis (electrical gauge). Has anyone seen this and successfully fixed it?

06-23-2004, 11:21 PM	#1
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Ever have this happen to you ??????? I have this 91 Chevy Silverado (5.7 litre engine) that the oil gauge keeps jumping around. I have changed the sending unit twice and also connected a gauge to the engine to check the pressure. The pressure is real good and it is steady on a gauge connect directly to the motor (around 30 psi idling and >45 psi when RPMs are up). The gauge, on the other hand jumps from 45 to 15 then back up again on an irregular basis (electrical gauge). Has anyone seen this and successfully fixed it?



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