im at a loss

[WFO4X4]

so the blazer is running cold according to the temp sensor..... i've replaced the thermosat and checked fluid levels, checked the fan clutch..... all but replacing what i can only guess would be a faulty temp sensor. any ideas guys?

 

[DGA1]

Does it still blow hot air? If so I'd replace the temp switch...

 

[Rewind]

Got me??????

 

[WFO4X4]

it did back in the winter when i still figured the thermostat was bad, which actually was.... anyhow, i'll check the heater.

 

[89-Z71]

Are you talking about the sensor for the gauge or the computer? Feel the upper radiator hose and see if it gets hot.

 

[WFO4X4]

ok, so the upper radiator hose will get hot, not untouchable hot but lets say hotter than what is comfortable. the heater blows warm.... not hot. so i'm suspecting it's running accurate to the gauge reading.

 

[Tony_SS]

sounds like a bad gauge..

 

[WFO4X4]

 

[89-Z71]

If you are talking about the sensor in the driver's side head, just take the wire off and ground it. If that pegs the gauge, then the sensor is bad. If there's no change, it's wiring or the gauge itself.

 

[WFO4X4]

it's not the gauge... the actual motor is running "cold"