I have an '02 2500hd chevy silverado. For the past 2 months in the mornings when I start it my oil pressure is low. Once it warms up everything is fine. Any ideas on why it would do this?
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baby girl
ANSWERS: 1
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It's gotten cold in the last two months. Cold makes fluids less viscous. What is most likely happening is your oil is gumming up. Then when your truck warms up it returns to its normal fluid state. In the meantime (on a cold start) your truck is being starved of oil meaning the pistons, etc are dangerously low on lubrication. This can obviously lead to serious internal damage. Now, for the solutions: You can do one of the following or preferably both. a) Change to a lighter oil or, barring that, a synthetic or semi-synthetic. Consult your manual for the lightest oil allowed by GM. If they only allow one, then change to a synthetic or semi-synthetic. b) Plug in your block heater. This will raise the temperature of the oil while it sits. Then, on startup, it will be ready to go pretty much immediately. Plus, it keeps your engine warm which means less temperature shock when going from cold outside air to a hot series of explosions that heat it up very quickly. Hope this helps, Good luck
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