High coolant temp and low oil pressure alarm

[David Wesner]

I’m getting a high coolant temp and a low oil pressure alarm when the engine warms up.

I’ve confirmed this is not actually happening with a mechanical gauge and an IR temp gun. Also, I have a secondary set of alarms purchased here at Seaboard.

I do believe this is ground issue. Any pointers on where to look? Using the voltage drop method with the DVMM is the best way to trace it out?

I believe the panel ground goes into the harness then grounds at the starter??? Any help would be appreciated.

D

Topic

[David Wesner]

So… looked through some schematics and saw how it was wired. Instead of chasing the wire loom, I jumped the ground from the negative bus to the ground connection on the IC board. Seems to have fixed the false alarms. I’ll take some voltage potential readings to confirm.

The wire loom has some ground connections on the starter that look fine. Suspect connectors or…unused ground for the fuel stop solenoid.

D

[Tony Athens]

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