Crazy noise I cant figue out

[CurrentObsession]

okay

Finally got the diode and both engines coded out a 12

I don't see that on the sheet, what now?

 

[alldodge]

Code 12 means the ECM has no codes. This is good so its probably one of the switches. Either drive lube bottle, oil pressure or overheat. Take them one at a time and disconnect the wire.

Drive lube has 2 wires but only one needs to be removed.
Oil pressure has a single yellow wire (below distributor or near oil filter adapter Tee'd with oil pressure sender)
Overheat has a single Tan/Blue wire (on the thermostat housing)

 

[CurrentObsession]

Thanks Alldodge