2002 GMC Envoy Ambient Temp Sensor

2002 GMC Envoy

GMC Envoy On the 2002 GMC Envoy, when the outside temp display is not working, this is most commonly due to a problem with the Ambient Air Temp sensor. The air temperature sensors are a 2 wire negative temperature co-efficient thermistor. As the air temperature surrounding the sensor increases, the sensor resistance decreases. The sensor signal voltage decreases as the resistance decreases. The sensor operates within a temperature range between -40°C (-40°F) to 101°C (215°F) . You can find the sensor under the hood mounted to the radiator fan shroud.…

Read More

2007 Saturn Vue Wiper Transmission

2007 Saturn Vue

Saturn Vue On the 2007 Saturn Vue, when only one side of the wipers are working, there can be a couple of different problems. First- check the wiper arm mounting nut at the base of the wiper arm. Make sure it is tight and that there are no signs of stripping. If stripped, you’ll see little metal flakes and/or rounding of the “teeth” on the mounting stud. If the nut is tight and there are no signs of stripping, then the problem will lie in the wiper transmission. There are…

Read More