oil pressure guage going from high to low
5

Asked by Vlad Sep 29, 2019 at 07:01 PM about the 2003 Chevrolet Silverado 1500 LT Extended Cab 4WD

Question type: Maintenance & Repair

my oil pressure guage keep going from high to none while i drove for a bit,
checked the oil and it was good, now has slight trouble starting up. do yall have
any idea if its the pump or the sending unit?

1 Answer
4,160

lincolnscott49 answered 4 years ago

The sending unit is relatively cheep if replacing or the wire to the unit is shorted or making a poor connection. If it was working or does the same thing after replacing the sending unit and checking the connections and wires and no problem with the connection or wire I would be concerned. A pressure gauge can be connected to the oil pressure sending unit hole to see if it is a bad oil pump.

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