Question about 1997 GMC Sonoma

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1997 GMC Sonoma with 4 cyl engine. The truck runs great, but after the engine warms up, the oil pressure drops to around 12 from 50 when cold. is this the oil pump and how do i change?

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Depending on oil type (IE: synthetic, etc) this is normal. If using conventional oil then I'd be concerned. To replace oil pump you'll need to remove pan and it is bolted to lower part of engine.

Posted on Apr 03, 2011

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