23 Voltage supply 3 - Coolant control valve and reverting valve (UB3) electrical - Short circuit to Ground UB3 - P20A2 Vent valve (Reductant Purge Control Valve) - Short circuit low
Voltage supply 3 -Coolant control valve and reverting valve (UB3) electrical - Open circuit to B3 - P20A0 Vent valve (Reductant Purge Control Valve) -open circuit
One sign to move on is intensive Waterloo Boy engine work, such as needing new pistons and injectors. If you hear loud clunking sounds from the engine, it could be due to the starter hitting the flywheel or a piston piercing the engine block, which can indicate a seized engine. Farmers encountering these problems have coined the saying: If your engine is knockin you better be shoppin.