Why would 96 contour radiator fan not be coming on?
Check the fan sensor and relay for the Contour fan. Check the fan motor next. One of these three will most likely be the problem.
1 person found this useful
thinking on the electrical fan this car has if I remember rite the grand am regal and Oldsmobile all have a thermostatic electric fan. But if the sensor isn't working to tell it to go on it wont. Suggestion make sure with test light that there is current at the fan motor on both sides of sensor.
A critical voltage drop probably is occurring at either your fuel pump or the electronic ignition module (computer), when a large current load is being drawn by the fan motor. Wait until it stalls and won't start, and then simply umplug the connector to the radiator fan, and see if this "cures" the …problem. If so, then check the voltage at the fuel pump wires or relay (should be at least 12 volts with engine running). The control signal to the relay comes from the ignition computer, which shuts down when a critical low voltage is reached (perhaps 9 volts or so). If the fan motor is the problem, and not turning freely,it would be drawing excessive current flow, and need replacement. Otherwise, the problem may be a corroded wire "take off" from the battery "pos" red wire or battery post, or a bad connection at the fuse block, etc. such that the fan motor is "stealing" current flow downstream from a high resistence connection, leaving insufficient current to run the fuel pump. // Jake good luck // Jake Answer This problem is a pain. A 93 sunbird SE with 3.1L did the same thing to my wife and after throwing lots of money on everything like plugs and sensors (from the dealer techs), it came down to a TCC. The car would warm up fine and for the first few miles be ok (on cool days). On warm days the car would run ok until she got into stop and go traffic. The fan would come on (coincidence?)and the car would suddenly shudder and even if she put it in neutral it would stall. The advice of making sure all the wiring is intact as well as the fuses and the fluids checked out is a good idea. There is a Technical service Bulletin with GM. I . Good Luck What is a TCC? Answer Torque Conveter Clutch. (MORE)
Answer The fan is meant to cool the radiator even after the car has turned off. Some vehicles have a heat type sensor to activate when the fan should "kick" in, others just automatically intermittantly run for a few minutes when turned on or have a set time for after it's turned off. Maybe when you… did the wiring you inadvertantly disconnected something necessary to the start up of the vehicle. Sounds like you installed the fan to work properly so I would just concentrate on what wiring you were near when you put it in...something simple might've come off or loose. Answer I found the problem to be a poorly connected ground. After cleaning the plug the housed the ground; my problem was solved. Greatestmind weighing in on this. Now it seems like you are saying your fan works fine but the coolant still overheats. If this is the case check your thermostat, and hope your water pump is working properly. Feel the inlet and outlet hoses on your radiator after about 5 minutes of engine running, both should feel hot to the hand. (MORE)
What would cause the AC radiator fan in a '92 Toyota Corolla to come on and off very rapidly and haphazardly?
I had a 89 Chevy Corsica that was doing the same thing. I replaced the ECM (Electronic Control Module) and it solved my problem. Your ECM controls your cooling fan by supplying a ground to the cooling fan relay. Something in your ECM has gone bad and it must be replaced. Good luck! You may have a ba…d connection in the wiring between the fuse and the fan 2 relay or a poor or coroded connection between the fan 2 relay and the condensor fan motor. Check the grounds also and clean them up also. (MORE)
%DETAILS%. Answer . Hey C==The blower motor probably is dragging causing it to use excessive amps hence blowing the fuse. Replace it. Go to a parts store and have the alternator checked out. New alternators go bad just like old ones do. GoodluckJoe.
Answer . \nI have a 1988 oldsmoble cutless cirra wih same problem I have replaced the colant fan switch and the coolant fan relay but to no avail have not solved this problem however the fan on the back side of the radiator does come on when I turn the key off but the fan on the front side of the… radiator never comes on\nany help yet???. Answer . You might need a diode wire.\n. \n . You may have a blockage in the coolent system which can prevent the flow of the hot coolent to the radiator fan switch. Check the temprature of the upper and lower radiator hoses carefully by touch. If the one of the hoses is cool while the other is hot there may be a blockage. (MORE)
Why would the cooling fans for the radiator not come on a 1994 Honda Accord if the fuses look good. Even if the the ac is off?
Answer . check the relay /\ncheck the temp sensor /\ntry turning the fan on by turning on the AC - fan should come on when the AC compresor turns on /.
Answer . I have a '95 Contour but I'm sure it's the same for a '96. Firstly, there isn't a drain plug for the radiator. Sorry. But you can drain your radiator and coolant reservoir. When looking at your coolant reservoir or expansion tank, there will be two hoses that come out. One top and one bo…ttom. Follow the bottom hose down to a conjunction of 3-4 hoses. There will be a hose that exits the bottom of the conjunction and runs under the car going towards the back of the car. It will be a fairly large hose with a hose crimp on it. undo the crimp and slide it back and CAREFULLY pull the hose off the tube. It will probably blast straight into the frame so be prepared. After letting all the fluids drain, You can reconnect the hose and run a radiator cleaner or a radiator flush through your radiator using your expansion tank. I would advise while you have everything drained, disconnect the two hoses from the reservoir and unbolt it from under the hood, and then clean it out. When I did it, it looked like a mix of mud and sludge coming out. \n. \nSorry for the long answer, but hopefully it's thorough and helps someone out. (MORE)
Answer . \nYou do not mention the year but my 1999 Villager has 3 relays & 3 fuses and a heat sensor switch. If all that works check the fan motor. All I did to check the motor was disconnect the power cable at the fan housing and and use an ohm meter to find the ground lead on Cable ( one lead… to engine ground then other lead to each cable lead, the one that shows closest to zero will be the ground)then put 12 volts from corresponding lead on motor and to one of the other motor leads , one should be low speed the other high speed. There might be a different sensor I'm waiting for a manual to find out. Also check the connection terminal on temp switch mine was almost cut in two. Are you experiencing overheating problems? (MORE)
Why would the radiator fan not come on if temp switch relay fuse and fan are all good on a 2000 elantra?
It could be due to a faulty ecm. I have the same problem on my 99 elantra. I know my cars situation, the fans come on a few minutes after I start it , but won't come on after it gets warm.. Due to troubleshooting it and a call to a mechanic friend he suggests the ECM could be bad on my car. Said ev…erything else would work, but not the cooling fan.. Especially if you know the fan is good, replaced the relay, the water temp sensor, " the two wire one " is good. The single male prong end one controls the water temp gauge in the dash.. Does your cooling fan's come on at all? If you turn on the Air conditioner do they come on? Both fans should come on with the A / C on. (MORE)
you need to find out if its the fans are bad or is the coolant temp censor bad or thermostat or if there is air in system Answer one fan is intermittent and only comes on when the engine reaches ideal temperature. the other only comes on when you turn on the AC. check fuses. Answer I had the same… problem with my 1997 Mitsubishi ecplise. The shop tried to tell me that it is going to be alot of money to replace the temp sensor that is inside the head. We fixed it another way by wireing a switch to the sensor and we can turn the fans on when we need to, but it is just best to just keep them on when ever you turn your car on. (MORE)
Looking up from under the car, the drain is located on the bottom right and corner of the radiator. A large flat blade screwdriver will be needed to turn the drain cap and allow fluid to be released. The drain cap can't be fully removed from the radiator so there is no worry that the cap will get lo…st. (MORE)
Answer . \nIf the smoke is coming from the electric fan itself, then it needs replacing. It could be the smoke is steam that the fan is drawing from the radiator, and you have a coolant leak at the radiator.
What would cause a 1996 Jeep Cherokee to overheat in idle and the fan not to come on if the water pump and radiator are only two years old?
Answer . \nIt is overheating because the fan is not working. The fan may have a Defective fan thermal relay, bad fan, blown fuse, or disconnected or loose wiring.
What would cause the aux fan to come on late on a 96 jeep Cherokee 6-cylinder - temp gets to 230 before the fan kicks on?
Well the 96 has 2 sensors, one for the gauge and one for the computer. One of them is obviously wrong, so simply replace them both. The computer 'sensor' is located on the water outlet at the front of the engine. The gauge 'sender' is located at the rear of the head on the drivers side. These system…s are also know for needing to be 'burped' which is another topic all together. Good luck. (MORE)
Answer Your problem could be a blown fuse.It could be a badsensor.It could be low on freon for the air cond.It could also be abad fan motor.All these are simple to check with a good repairmanual,such as Haynes or Chiltons.Good Luck You may have accidentally unplugged/damaged the engine coolant temps…ensor while changing the t-stat. (MORE)
Answer . \nfaulty sensor\none is for turning fan on at correct temp and one is for shutting fan off when not needed,
Answer . \nI would suspect a blown head gasket. This is very serious, so if it checked out ASAP, and stop driving the car until you know for sure.
Answer . A relay in the fusebox near the battery, its receives a signal from the ECU when to turn on
Answer . \nMost modern vehiciles have electric fans on them to cool the radiators. The fan stays on for awhile after you shut off the engine, this is normal as long as the fan does not stay on all the time.
Answer . \nA/C or defroster on\nRelay stuck in closed position\nTemperature sensor not sensing proper temperature
That depends on which engine is in it. This should tell you what you need to know. http://www.autozone.com/az/cds/en_us/0900823d/80/1b/c3/18/0900823d801bc318/repairInfoPages.htm
Your 96 mercury is running hot changed the thermostat and the upper hose and it still runs hot i also changed the cap on it and for some reason the fan will not come on to cool off radiator?
Answer . Check your fuses. The fan's fuse may have blown. If the fuse is blown and replaced, then blows again, take it in to have someone look at it because the fuse is blowing to protect your car's electrical system from an over-current situation that could become more dangerous. (Hint: gasol…ine + oxygen + spark = fire; good for combustion inside the engine, bad for cars and people outside of the engine). Seriously, don't ignore bad electrical systems... They may not return the favor. (MORE)
First you need to let us know if it is a 4 or V6. If it is a 4 it will be behind the engine in a very difficult position. As usual before you even consider doing asny work get a good repair manual. It helps a lot. Also if you are changing the timing belt ignore the part where most manuals tell you t…o loosen the starter & jam the ring gear so you can remove the crank pully nut. All you need is an impact wrench. My local Ford Dealer clued me in on that one. l (MORE)
the system works like this. The eng has a thermo switch, which sences coolent temps around 185 to 195 fer. it produces a closed circut, which then applys voltage to the rad fan relay. which then handle lots more current, i.e amps.. could be a number of things, like thermostat,bad rad cap, thermo sw…itch, fuse, relay,defective fan. or low on coolent.. VonJay F Leichtfuss (MORE)
It sounds like you need to replace the blower motor. Most of the time you can pick one up at any new parts store like AutoZone.
Radiator caps are pressure relief valves. They are rated at "pounds per square inch" and are designed to release some pressure from the radiator if it gets too high. If an engine overheats it can boil the coolant and this will cause the radiator cap to let out steam.. Radiator caps DO lose their ab…ility to regulate pressure and can release too soon. If the engine has not overheated, have the radiator cap tested and replaced as necessary. (MORE)
Test the radiator fan relay. It is located under the bumper under the right front headlight. You will have to cut a small access hole under the headlight to get to the plug.
Some fans are pushers and some are pullers. Depending on where there is enough room to install the fan determinesthe direction of flow. In reality, the fan draws air across the radiator for cooling.. \n. the engine fan is supposed to blow towards the engine. the fan sucks air thru the radiatoe and… then blows over the engine to provide cooler air from outside. if the fan had to blow out thru the radiator, you would need one awful powerful fan to counteract the natural aid flow direction when driving\n. i had an electric fan on a 4x4 one time that was wired wrong. this fan blwe towards the radiator instead of drawing thru the radiator.this took us quite a while to figure out the fan was going the wrong direction.once the wires were switched, the over heating problems went away\n. \n. the engine fan is supposed to blow towards the engine. the fan sucks air thru the radiatoe and then blows over the engine to provide cooler air from outside. if the fan had to blow out thru the radiator, you would need one awful powerful fan to counteract the natural aid flow direction when driving\n. i had an electric fan on a 4x4 one time that was wired wrong. this fan blwe towards the radiator instead of drawing thru the radiator.this took us quite a while to figure out the fan was going the wrong direction.once the wires were switched, the over heating problems went away\n. (MORE)
The radiator fan sensor switch or the radiator fan motor are at fault (maybe even both). Wire the fan motor direct to see if it will run, if it does, replace the sensor switch. If the fan motor doesn't run, replace the fan motor before you buy a new sensor. If after replacing the fan motor, the fan …still doesn't run, then replace the sensor. (MORE)
If the radiator fan does not shut off on a 1996 Chrysler Cirrus,the fan relay might be bad. The fan relay is usually located in abank of relays near the battery.
Possible Answer . It may be that the engine coolant temprature sensor has gone faulty.. It may well be sending the wrong signal to the ECM. causing the ECM to think the engine is hot when in fact the engine is cold.
When you stand at the frount of othe car, bonet up. The temp switch is under the Inlet manifold (left side) at the front of the engine.
that is a process that should not be undertaken without the proper tools and equipment.. also depends if its a manual or automatic question.. http://www.2carpros.com/affiliate/uid/blackop555_1 for additional information.
Replace your Engine Coolant Temperature Sensor. Your car has two, replace the one with the two wire connector
An automatic radiator fan will go on and off in cycles to cool an engine down when it begins to heat up. It works with sensors that monitor the engine heat and trigger other sensors to turn on the fan. It will even run with the car engine off after it's been driven a long time and is hot enough to n…eed it. Then it will turn off on it's own. It's normal operation. IT's when the fan doesn't come on when the engine is hot that you need to worry, or when your temp gauge is showing hot and you check for the fan to see if it is turning on and off and it's not working that you have a problem. (MORE)
This happened to my gf's car... we had to install a new set of fans.. $700 at the shop $250 ourselves. Anyway... depending on the year there was a recall on the fan controller module, if your fan motors are not burnt up already, you should take your vehicle to the nearest dealer to have that replace…d or it could possibly burn out your fans, causing a bigger problem (MORE)
Most often there is a temperature sensor that tells the fan to run or not: above 165F (in a lot of cases) the fan goes on, below that it is off to allow the engine to warm up to running temperature. It varies from car to car and even day to day based on readings that the cars computer takes in runni…ng the engine. (MORE)
What engine do you have? If people would give the simple, basic information to be necessary to be able to properly answer questions like this, it would make it a lot easier! At any rate, on any engine, you can find the starter by simply following the primary positive battery cable from the positi…ve post of the battery to the starter solenoid, and from there to the starter. If you don't have enough know-how to follow this simple process, then take the car to a shop and let a professional do the work. (MORE)
A faulty fan motor, A faulty fan motor relay, A faulty coolant temp sensor, A faulty ECM, (most unlikely),
It's most likely the module that is seated behind the left headlight. Sometimes they run all the time, and other times they won't run at all.. I replaced mine and it's fine now (cost is about $75 at your Dodge dealer only).
there could be a thermostat problem causing a partialy-closed stat-not providing "complete" circulaion to enable proper cooling-telling the ecm to start fans to aid cooling. 2ndly, when you come to a stop, you prevent the air flow thru the radiator to cool the coolant that cools te engine, that kee…ps the coolant temp sensor cool (no sendng a "hot signal to the ecm to activate the rad. fans. (MORE)
Faulty electrics. Thermostat, relay, fuse, fan motor, short in wiring, poor ground. Unfortunately, you might have to have a professional look at it.
If your radiator fan is electric, loss of electrical power can cause it to stop working such as a break in one of the wires. There can also be a fault in the speed controller thermostat that is not signaling the fan to turn on. If the fan won't move at all and cannot be manually tuned, the internal …bearing may have failed. If your radiator fan is mechanically attached to the engine, the fan clutch can be faulty and not engage. (MORE)
remove electric fan drain coolant remove upper and lower hose remove what ever else may be blocking the radiator from being removed remove radiator reverse
on most vehicles the radiator fan is wired up to a relay so that the fan will remain off until the car is warmed up. they do this so your car will warm up to NOT (normal operating temperture) faster. if you are good with wiring you could wire the fan up to a switch so you can turn it on or off when …needed. (MORE)
Yes, when the a/c is used the engine works harder which rises the temp of the engine then turn the fans on to cool the radiator.
It runs when th e coolant temperature reaches about 212 or when acpressure is about 300 psi It runs when th e coolant temperature reaches about 212 or when acpressure is about 300 psi
Look more carefully and see if the radiator is leaking -sounds like it. If so, get it repaired ASAP.
no its not supposed to, there is a sensor that reads the coolanttemperature and sends a signal to a relay or the engine computerwhich turns on the fan when it reaches a certain temperature. If the vehicle is equipped with AC, it is normal for the electricfans to come on when the AC is turned on.