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A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Lincoln
Satisfied Customers: 6389
Experience:  ASE Master Certified. ASE Gasoline Engine Performance Certified,Ford Senior Master Technician
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Lincoln Mark IV: Lincoln Mark IV 5.4 liter oil pressure gauge

Customer Question

Lincoln Mark IV 5.4 liter oil pressure gauge reads zero at times. Had it checked and the oil pump is working and the oil pressure sensor are OK.
Submitted: 1 year ago.
Category: Lincoln
Expert:  A. Penland replied 1 year ago.
How did you test the oil pressure sensor?
Expert:  A. Penland replied 1 year ago.
Please let me know if you need any more assistance.javascript:void(0)
Customer: replied 1 year ago.
Mechanic replaced the sensor twice and said the trouble was in the instrument cluster and would cost 1100.00 to replace.
He also tested the oil pump and said it had plenty of pressure. The gauge works some times but when it doesn't it goes out for several days at a time, then will work for a day or two.
Expert:  A. Penland replied 1 year ago.
The sensor is not actually a pressure switch, it is basically an on off switch. Since the switch was replaced twice and the problem still occurs, then the cluster is the problem. The oil pressure gauge is part of the cluster and the cluster will need to be replaced as an assembly.