Engine Harness 1969 c10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

elorenzof · 02-03-2022, 08:04 PM

So, if the oil pressure is mechanical, with a copper oil line from the Block to the back of the oil pressure gauge, why does my new engine harness have a oil pressure (Blue wire / spaded w/cover on the end) for an oil pressure switch that im assuming goes on the passenger side of the block?

**LockDoc** · 02-03-2022, 08:42 PM

Quote:

Originally Posted by elorenzof

So, if the oil pressure is mechanical, with a copper oil line from the Block to the back of the oil pressure gauge, why does my new engine harness have a oil pressure (Blue wire / spaded w/cover on the end) for an oil pressure switch that im assuming goes on the passenger side of the block?

Trucks with the 3 hole dash cluster had a light bulb for the low oil pressure warning.

LockDoc

02-03-2022, 08:04 PM	#1
elorenzof Registered User Join Date: Nov 2017 Location: Anthem AZ Posts: 281	Engine Harness 1969 c10 So, if the oil pressure is mechanical, with a copper oil line from the Block to the back of the oil pressure gauge, why does my new engine harness have a oil pressure (Blue wire / spaded w/cover on the end) for an oil pressure switch that im assuming goes on the passenger side of the block?



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