GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1997
🢒
GMC P42 Commercial Chassis
🢒
Engine
🢒
Engine Controls - 6.5L
🢒 Fuel Heater Replacement
Removal Procedure
Remove the fuel tank filler cap.
Remove the protective cover from fuel manager/filter.
Open the air bleed valve (4) on top of the fuel manager/filter (3) in order to release any of the pressure in the fuel supply system.
Disconnect the fuel heater connector (1).
Remove the fuel heater threaded nut by turning counter clock wise.
Use a hand pressure or a strap wrench in order to remove the fuel heater threaded nut.
Remove the fuel heater (2) from the filter housing by pulling straight up.
Installation Procedure
Install the cap seal into the filter housing.
Install the fuel heater by pushing straight down (2).
Install the fuel heater threaded nut.
Reconnect fuel heater connector (1).
Install the protective cover on the fuel manager/filter.
Install the fuel tank filler cap.
Bleed the air from the fuel manager/filter. Refer to
Fuel Supply System Air Bleed
.