Question about Chevrolet Silverado 1500
The oil pressure fluctuation of the gauge is a very common problem in the Chevy trucks, it is caused by a defective oil pressure sending unit, I've see the question allot and fixed many ion the shop for this problem. There are numerous bulletins on the problem issued by GM on the problem. The sending unit is placed at the back of the engine just behind the intake manifold on the top of the block near the distributor, you will need a special tool to remove it, any part store has the Oil pressure sending unit socket you need. As far as the temperature gauge goes, what you describing would not be considered a problem by me if it came into the shop, large fluctuations are a problem. If you are concerned this is a problem in the making I suggest you drain the coolant out and replace the thermostat, the thermostat is located in the housing that the upper radiator hose attaches to on the engine, refill the system with GM DEXCOOL or its generic equivalent, make sure you get the air out of system and refill recovery tank after the engine cools down.
Posted on Mar 28, 2011
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Posted on Jan 02, 2017
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