Oil Pump or Bearings

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Posted by Marty ( on 22:56:43 09/30/07

My '94 Sub (K1500/5.7) with 182k miles on the odo started dropping oil pressure last week. It had been on the low side for a few years. Used to start above 40, and warm would stay above 20-25 at idle. On the highway it would climb normally. Last Thursday, the idiot light came on and I noticed the oil pressure was down in the red at idle. Rev'ing the engine would bounce it up. Never had a problem with oil or filters. The oil was on the dark side, from a Labor Day weekend trip to the desert (115° days). I had changed the oil and filter prior to the trip.

So, I may drop it off tomorrow for a compression check and manual oil pressure check. Anything else to consider? The wife just got her new washer/dryer set, so I don't have any project money for a 383.

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