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Should a GMC 2005 Sierra oil pressure gauge be maxed out at 80 psi and drop to zero around 60 mph?
Wiki User
∙ 13y ago
It is most likely a faulty gauge, as they are known for having problems. My volts gauge does the same thing.
Wiki User
∙ 13y ago
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Why is the oil pressure gauge fluctuating on a 2006 gmc sierra?
The oil pressure gauge may be fluctuating on a 2006 GMC Sierra if the oil pump is failing or the sensor is defective. This can be the first indicator of a potentially catastrophic failure.
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