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Oil pressure sending switch
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Question
Okiegirl
We have a 2004 Chevy Silverado with the 5.3 Vortec engine. We are not the original owners.
We are on the 5th or 6th...really I lost count...oil pressure sending switch. All replacements have been aluminum bases. Last few have been torqued to 15 ft-lbs. We are replacing it yet again, this time we are getting a brass base and torquing it to 15 ft-lbs. They all work great for a few weeks and then they fail or blow up sending oil all over the engine and engine compartment and the pressure to zero. It has never completely run out of oil, the tip of the dip stick still has oil on it when this happens. We limp it back home, making sure to stop and check the oil often.
Please advise on why they keep failing and/or what to look at for other issues that may be contributing to their failure.
Thank you
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