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1997 Astro van oil pressure gauge reads about 20 psi key on or not and engine running or not how to check if oil pump or oil pressure sending unit?
Wiki User
∙ 16y ago
GM oil pressure senders have a pretty high failure rate. Since your van is 10 years old, and pressure senders are not too expensive, I would start by replacing your sender...there's a pretty high likelihood that you will eventually replace it anyway.
Wiki User
∙ 16y ago
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