The sender for a temperature gauge, often referred to as a temperature sensor or sending unit, is typically located near the engine or within the engine block. It is designed to measure the coolant temperature and send this information to the gauge on the dashboard. In some vehicles, it may be found in the thermostat housing or cylinder head, depending on the engine design. Proper placement is crucial for accurate temperature readings.
1990 Chevrolet Lumina temperature sender is located on the back side of the thermostat housing. The sender has a wire that goes to the temperature gauge.
only 3 reasons a temp gauge wont work the temp sender is bad the gauge is bad or the wire from temp sender to gauge is broken
The temperature sender (the sensor that sends the temperature signal to the gauge) has to be immersed in coolant in order to correctly read the temperature. If the coolant is so low that it leaves the sender high and dry, the temperature shown on the gauge will not be a true reading. if the sensor is not immersed in the coolant, there a big chance it wont read at all...
The gauge sender is located on the back driverside top of the head.
bad temp sender usually. Bad gauge rarely.
If the temperature gauge on your 1995 Blazer with a 4.3 engine stays on hot but the vehicle is not actually overheating, it could indicate a faulty temperature sender or gauge. The sender might be providing incorrect readings, or there could be a wiring issue affecting the gauge's performance. Additionally, a stuck thermostat could cause fluctuating temperatures, but if the engine runs fine, it's likely an issue with the gauge itself. It's advisable to have the sender and gauge tested to confirm the problem.
temp sensor - sends signals to the computer for driveability temp sender - measures temp and sends to gauge in dash
If your temperature gauge isn't working the problem is a bad gauge, grounded or disconnected wiring or, most likely, the temp sender isn't working.
To install an aftermarket temperature gauge in a 4.0 HO Cherokee, you'll typically place the temperature sender in the engine's coolant passage. The most common location is in the cylinder head or intake manifold, where you can tap into an existing coolant port or drill and install a fitting. Alternatively, you can replace the factory temperature sensor with the aftermarket sender if it matches in size. Ensure the sender is securely fastened and wired correctly to the gauge for accurate readings.
Take wire off temperature sender look a guage. If guage at cool, temp sender needs replacement. If guage still at hot, temp sender wire shorted to engine or vehicle body.
The temperature sender for the instrument cluster gauge is between spark plugs #5 and #7 on the passenger side cylinder head. The temperature sender for the ECM is in the front of the intake manifold, beneath the throttle body.
There is a hose that runs from the radiator to the front of the engine block (front of the vehicle). Where the hose enters the engine, the temperature sender unit is threaded into the block. It has an electrical connector attached to it. To the best of my knowledge, this is the only temperature sender. Best...