Quote:
Originally Posted by Uchunter
1991
Any thoughts on this one. When idling, my oil pressure gauge reads about 40 PSI. When I increase the RPMs or while driving the pressure goes to about 70 PSI or higher. Ideas why the fluctuating pressure? oil level is fine.
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Oil Pressure Sensor Dash Gauge probably is the issue. Although I think on my 90' I have the same readings with the idle half way and hot near 65 or 70.....I know I replaced that Oil Pressure Sensor Dash Gauge one time on another 90' (the high oil pressure was pinned at 80) and the problem was cured.
Engine Lubrication System Functional Discussion