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On a 2003 Tahoe for the last 20000 miles the oil gauge reads 80 when key is turned to on then stays at 0 when running how do you determine if oil sending unit or oil gauge is defective?
Wiki User
∙ 17y ago
Locate an oil gallery plug on the engine, usually a plug above the oil filter, then temporarily install a manual oil guage to read the static oil pressure under the conditions you described earlier. If there is deviation from the electronic readings, replace your electronic sensor. If not, you need to consult a professional technician
Wiki User
∙ 17y ago
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