The turn signal flasher on a 2002 GMC Savanna van is behind the left IP fuse box. This is also the location for the hazard flasher.
Usually in a removable housing at the engine end of the upper radiator hose
The 2002 GMC Sierra: temperature sensor is located on the front of the engine. The sensor will be just above the thermostat housing.
gmc savanna 4.3 oil sensor where is locate
the sensor is underneath the distributor cap
Look under the vehicle along frame follow fuel line from tank
The speed sensor on a 1998 GMC Savanna is located in the engine compartment. It is on the back of the transmission.
Coolant Temperature Sensor/Switch (For Computer)Locations View
where is the fuel filter on a 2005 GM savanna
there is none
To change the thermostat on a 2002 GMC Envoy 4.2, first, ensure the engine is cool, then disconnect the negative battery cable. Drain the coolant from the radiator and remove the upper radiator hose connected to the thermostat housing. Unbolt the thermostat housing to access the thermostat, replace it with a new one, and reassemble everything in reverse order, making sure to refill the coolant and check for leaks. Finally, reconnect the battery and start the engine to ensure proper operation.
The thermostat is located on the engine on a 1998 GMC Sierra 1500 standard. The thermostat can be found by following the upper radiator hose directly to the thermostat,