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Why does the oil pressure gauge on a 1976 Chevy three-quarter ton go to the top when starting then go down a little?


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2004-09-14 10:14:38
2004-09-14 10:14:38

When the oil is cold the pump has lots of preasure . When it warms it drops at idle but depends on the rpm of the engine. It sounds like it is operating correctly other than the preasure may be showing a little high. If you want to know the correct preasure have a manual gauge installed.


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Probably a bad fuel pump. Have the fuel pressure tested.

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If you have the "know how" you answer your question, yes, it can be done

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9 to 13 LBS. No higher or lower are you will have starting are running problems.

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9 to 13 LBS. No lower are higher are you will have starting and running problems.

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