Where is fan #1 temp. sensor located.

SOURCE: 94 4.6 deville coolant hot,eng hot ,limp mode

pull codes from on board diagnostics turn key on not running press and hold hot button on temp and off at same time till dash lights up write down codes respond with all computer codes i will help you determine prodlem and try to fix

SOURCE: Saturn VUE 2003 Thermostat Housing--how to replace?

I would recommend factory parts only for this application. Find a Saturn dealer and ask for the thermostat housing, and it should include the thermostat. It is an updated part due to the thermostat sticking issue. As far as replacing it, the thermostat is below the upper and lower intake manifold. You need to pull the upper manifold up out of the way. To do this remove the 6 T-30 bolts holding it in place. There is a connector they will be below the intake on your right, this needs to be unplugged before pulling the intake up too far. The lower intake may have internal or external torx bolts depending on the year and date produced. Remove all 12 bolts and pull the lower intake out and the thermostat will be on your left, between the cylinder heads near the timing belt cover. There is a solid tube that connects the upper radiator hose to the thermostat housing, it is attached to the engine by an external torx bolt near the oil dipstick tube. Remove the hose from the transfer tube, then unbolt the tube and twist back and forth to remove. DO NOT pry on the bolt flange of the tube this will break off and then you will need a new tube. Keep twisting and pulling and the tube will come out. Once the tube is out simply unbolt the thermostat housing and install the new one. A couple tips for this, one is don't drain all the coolant, just remove the upper radiator hose from the transfer tube and drain whatever comes out of there. Draining all the coolant will introduce alot of air into the cooling system which will be tough to remove. All the air has to be out or the engine will over heat. You will only need maybe half a gallon of coolant if this procedure is followed. I also usually over fill the coolant a little to allow for any air trapped in the system to escape with out lowering the coolant level far enough to turn the low coolant light on. The labor for this job is about 2.5 hours for a professional, if you haven't done much work before allow at least double that to complete this job. Hope this helps.

SOURCE: 2002 honda civic stalls, loses power

The Sensor thy are talking about is also called the crank position sensor. It is located behind the timing cover at the crank pulley. if you open the timing covers you can check the timing belt at the same time. check the belt for play and missing teeth. if belt is OK replace the sensor. (follow the wire behind the cover to find it.

SOURCE: 2001 jeep grand cherokee no start, no cam signal or ASD control from pcm

IF YOU PULL OUT CAM SENSOR YOU HAVE TO PUT A TOOTH PICK IN THE TWO HOLES ON THE TOP AND THEN PUT IT BACK IN AND FACE IT TO THE BACK OF THE ENGINE.KING OF 4.0

SOURCE: what does a engine coolant temp sensor do?

yes some coolant sensors do, others just monitor the coolant temp,, the fan switch should be mounted on the radiator, " a plug with 2 electrical terminals on it " and can be tested by bridging the contacts with a pin and the fan should run if not the switch is at fault..

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