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Title: No Oil Pressure Reading on Gauge
Problem: A street rodder purchased a running 1965 Chevrolet to make into a street rod. The intent was to use the original engine and to rebuild it if necessary. When running the engine before rebuilding, it was noticed that the oil pressure was at zero on the dash gauge during normal operation. What could be the problem?
Solution: It's always a good idea to check the simple things first. Of course, one would think that the engine oil pump would be faulty. However, a simple check before replacing the oil pump would be to make sure the oil pressure sensor (see photo) is correctly operating. This oil pressure sensor is an electric type that feeds an electrical signal to the oil pressure gauge on the dashboard. First check to see that the wire is connected correctly. Then use a continuity tester to make sure the wire connector is not broken or separated from the wire. Also, check to see if there is oil pressure from the oil pump by using a remote oil pressure gauge. If there is sufficient oil pressure and the wires are connected correctly then the problem is most likely a faulty oil pressure sensor. If the oil pressure sensor is replaced with a new one, oil pressure should now read on the oil gauge on the dashboard.
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Problem: A street rodder purchased a running 1965 Chevrolet to make into a street rod. The intent was to use the original engine and to rebuild it if necessary. When running the engine before rebuilding, it was noticed that the oil pressure was at zero on the dash gauge during normal operation. What could be the problem?
Solution: It's always a good idea to check the simple things first. Of course, one would think that the engine oil pump would be faulty. However, a simple check before replacing the oil pump would be to make sure the oil pressure sensor (see photo) is correctly operating. This oil pressure sensor is an electric type that feeds an electrical signal to the oil pressure gauge on the dashboard. First check to see that the wire is connected correctly. Then use a continuity tester to make sure the wire connector is not broken or separated from the wire. Also, check to see if there is oil pressure from the oil pump by using a remote oil pressure gauge. If there is sufficient oil pressure and the wires are connected correctly then the problem is most likely a faulty oil pressure sensor. If the oil pressure sensor is replaced with a new one, oil pressure should now read on the oil gauge on the dashboard.
Back to Troubleshooting Clinics
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