I have seen several problems with oil pressure switches here, but none that are indicating full pressure when powered. Recently had to pull the engine to extract a broken starter bolt. Took the opportunity to replace the timing chain gasket / cover, oil pan gasket, plugs, plug wires, distributor cap/rotor, fuel filter, oil and oil filter. Now, that the engine is back in, as soon as I turn the key to the ON position, the oil pressure gauge max's out at high pressure ( not sure of value. will check later today). Based on other threads. if the lead is grounded, the switch will go to high pressure, so I assume, something is grounded. Can I assume if I disconnect the wire, the gauge will read ZERO?
How does the sending unit work? it must be based on resistance to ground...
1999 Larson 186 LXi
4.3L Volvo Penta GLX
How does the sending unit work? it must be based on resistance to ground...
1999 Larson 186 LXi
4.3L Volvo Penta GLX