Proheat M105 G-II PCM, Service Manual

Page: 50 / 90

Fuel Solenoid Valve – Check:
a) Valve plunger – mechanical fault. Test the PROHEAT operation; Fuel
Solenoid Valve plunger removed.
Procedure – Fuel Solenoid Valve Mechanical Function:
a) Disconnect all harnesses at the G-II PCM.
b) Disconnect the fuel supply line.
c) Loosen and back out the burner head mounting (2) bolts five to six turns
allowing enough room to rotate the burner head 15° counter-clockwise
and remove.
d) Remove the Fuel Solenoid Valve connector. Use a small flat head
screwdriver to lift the connector locking tab, pulling up on the
connector to remove.
START: Fuel System Step 5
(1 Flash)
Figure 4-14: G-II PCM Fuel Solenoid Valve Connection.
G-II PCM FUEL SOLENOID
VALVE CONNECTION
NOTICE
It is recommended that the Fuel
Regulator be serviced at the same
time as the Fuel Solenoid Valve. Go
to page 4-15, Step 6.
Figure 4-12: Burner Head Removal.
MOUNTING EARS (2)
MOUNTING BOLTS (2)
TORQUE = SEE SECTION 1.3
COOLANT PUMP
SWITCH INPUT
TEMP SENSOR 1
POWER
FUEL INLET
LOCK
Figure 4-13: Connector Removal.
4-13
PROHEAT M-SERIES G-II PCM SERVICE MANUAL