Check the that wire to the temp sender unit is not shorting out as it will read hot if it is remove the wire and if the gauge goes back to cold then replace the sender unit.
SOURCE: Temp guage not working prpert. Stays on H even with car off.
You might want to chk. the connection on the sending unit and temp. sensor thats the way they act when they loose a connection. If that chk. out ok then it would have to be the guage its self thats faulty.
SOURCE: 96' Cavalier coolant light on, replaced thermostat, fan not on
Hi ! first ,does your a/c compressor kick in when you turn on the a/c ? if it does but your fans dont then check for blown fuses ,if all fuses are good then if you have a test light see if you have power going to the fans with the a/c on .if you have power then you may have a bad fan ,that can cause your temp to go up ,try that and get back to us!
SOURCE: Cooling fans on 1994 Caprice classic with 4.3 v8
On a vehicle this age, it is likely that the fans themselves have worn out. Test the fans by running battery power directly to the positive contact. If they start, they are OK. On 4.3 motors, there is also a seperate temp sensor to signal the fans, usually called a fan switch. I believe it operates independent of the ECM. Another possible culprit is a bad ground at the fans or even a loose or corroded negative battery cable.
Testimonial: "helped narrow and define my problem. still need a little more to solve a very strange problem that has stumped 4 mechanics so far. "
SOURCE: The temp gauge does not indicate any temp info.
Did you replace the sending unit on the drivers side head between the number 1 and 3 spark plugs? That is the one for the gauge
SOURCE: my 2004 chevy cavalier temp gauge goes to the
It could be a simple as a coolant temperature sender. I'm not sure where yours is located on your car but alot of Chevrolets have two of them. One for the gauge and one for the ecm. If you know where it is just turn your key on and let your gauge do its thing and then unplug the temp sender. If your gauge pegs out or drops to zero that is probably your problem if it is reading in the middle and the engine is cold. You could have a problem with the gauge as well but start with sender.
182 views
Usually answered in minutes!
×