03 Fleetwood Revolution 350 Cummins
I had the oil & filter changed recently. After the service was completed. I noticed that the Oil pressure gauge was not working. After much searching (Camping World) regarding the PCM line and the gau...
Forum Discussion
The switch part may make sense...
On 03 Dodge w/5.9 Cummins the oil pressure gauge is powered by a simple low pressure switch (6 psi) on the engine. So the "gauge" is really just a show the ECM puts on for your benefit and has no relation to what the oil pressure really is. As long as there's pressure, the "show" goes on.
Maybe you ISC is the same.
On 03 Dodge w/5.9 Cummins the oil pressure gauge is powered by a simple low pressure switch (6 psi) on the engine. So the "gauge" is really just a show the ECM puts on for your benefit and has no relation to what the oil pressure really is. As long as there's pressure, the "show" goes on.
Maybe you ISC is the same.
