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Old May 10th, 2019, 11:36 PM
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Temp or oil pressure
Hi, can someone please tell me if the green wire from the engine block is a temp or oil pressure sensor? Cutlass Supreme Brougham 1978.
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Old May 11th, 2019, 04:22 AM
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In years past green was temp, blue is oil pressure.
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Old May 11th, 2019, 06:05 AM
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Originally Posted by oldcutlass
In years past green was temp, blue is oil pressure.
Thanks!
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Old May 11th, 2019, 12:01 PM
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Ground the wire with the ignition on and see which light on the dash lights up.
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Old May 11th, 2019, 02:08 PM
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thats chevys water temp
oil pressure is by the distributor
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Old May 11th, 2019, 02:43 PM
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Oil pressure is at the front of the block.
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Old May 11th, 2019, 04:19 PM
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Originally Posted by RandyS
Oil pressure is at the front of the block.
Not on a Chevy motor. Look again at the picture in the first post.
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Old May 11th, 2019, 05:01 PM
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Oops, my bad.
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Old May 14th, 2019, 09:25 PM
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I could not get a correct signal from the green cable so I installed an adapter. It works fine
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Old May 14th, 2019, 09:47 PM
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Originally Posted by Julle
I could not get a correct signal from the green cable so I installed an adapter. It works fine
If you grounded the green wire it should light the temp light of peg a gauge, depending on which you have. If that happened, then you can just replace the sender.
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