Question about 1995 Pontiac Sunfire

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Were is fan temp sensor on 95 pontiac 2.2 - 1995 Pontiac Sunfire

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Should be near the Exhaust Gas Recirculation Valve ( E.G.R. valve ) or upper rad hose, it'll be made of brass and has a connector on it, 1 plug with either 2 or 3 connectors on it, its pretty small in size. Standing infront facing the engine compartment drivers side on the engine itself.

Posted on Jan 24, 2014

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SOURCE: at what temp. should the

should turn on at about 230 deg f.

Posted on Apr 23, 2009

roniecon
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SOURCE: cooling fan doesnt come on in my 95 pontiac grand am 3.1L se

Change the thermostat,and bleed the cooling system or air.It does not need to be hot,and there are little bleeders on the engine,one is near the water outlet,it has a nut and a screw in the middle of it open it up,and pour coolant in the radiator,and watch for air and coolant to come out of the bleeder,and when all the air seems to be gone ,close the screw.Need to hold the nut while loosening the screw,and when you tighten the screw back down.Fill the radiator,and the reservoir full.The reservoir will have a full line on it,fill it up past the mark,about a quarter of the way more.Then start the engine set the heat to floor and turn it on low fan.Let it run,to see if the fans will come on,and they need to go off to let you know the engine is cooling back down.If they do not come on,right before the engine gets to hot,before the engine starts bubbling the reservoir tank,cut the engine off,and leave it for about 25 minutes.Then look at the reservoir to see if the coolant level has gone down,if so,add more coolant to the reservoir and start the engine up again,same procedure,it should start cooling then.

Posted on Nov 04, 2009

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Jun 14, 2011 | 2004 Pontiac Aztek

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I have a 95 Gran AM GT with 3.1 auto. The motor will run until it gets overheated and boils over, but the fan will not start.I have totally flushed the system,pulled and inspected the water pump, changed...


Fan operates when coolant temp reaches 226 deg.F and shuts off at 219eg.F
fan is controlled by the PCM infuts from Eng. coolent temp. sensor & Intake air temp. sensor
the yellow wire is the 5V reference and the black wire the is the PCM ground sensor
make sure your not using teflon tape on the threads of the temp sensor.
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1 Answer

Does a 95 cutlass supreme have a fuse for the cooling fans or only the relays. I dont see a fuse for the cooling fans. Neither fan is coming on, Ive jumped the fans they both work, Ive changed out the...


There are three fuses and two relays for your coolant fan. They should all be in your underhood fuse box. They may not be marked "coolant fan", so check them all, (2) 60 amp , (1) 20 amp, (1) 15 amp. If all the fuses are good, you may have a bad fan switch (temp sensor). It tells the fan when to turn on, follow the wire from the fan motor to find it.

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1 Answer

Does a 95 cutlass supreme have a fuse for the cooling fans or only the relays. I dont see a fuse for the cooling fans. Neither fan is coming on, Ive jumped the fans they both work, Ive changed out the...


Yes, in the underhood electrical center, a 60 amp with a red wire going to relay 1 and a 20 amp with an orange wire going to relay 1 and a 15 amp with a brown wire going to relay 2 and another 60 amp with a red wire going to relay 2. The diagram doesn't show a temp sensor, but it does show dark blue and dark green wires going to the power train control module, so it must get the temp input from there. The second fan usually comes on when the A/C is turned on and it apparently gets that signal from there also. Hope this helps.

Dec 19, 2009 | Oldsmobile Cutlass Supreme Cars & Trucks

1 Answer

What does a engine coolant temp sensor do? does it tell the fans to come on? i have already replaced the thermostat, but the car still runs hot, but dosn't overheat


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..

Nov 07, 2009 | 2004 Pontiac Grand Prix

2 Answers

95 grand am radiator fan only runs with AC on


Cooling Fan Temp Sensor is the First thing You Check (with what you have described) Cooling Fan Should ALways come On When The A/C is turned On as A/C Adds A Load to Engine, If Temp Sensor is Faulty it Will Not Give GROUND Signal to ECM >For COOLING FAN >RELAY to Give ground and turn ON The Fan.
There ARE 2 temp Sensors that Serve Different Purposes 1 is for Dash READING GAGE & Or TEMP LIGHT the Other is For ECM or Fan Relay (SAME Thing) you Said>""can disconnect the sensor and fan continues to run" < This Leads me to think you Changed the Wrong One. Not Questioning your Skills Just Here to Help.
TEMP SENSOR FOR 3.1L V6 is Located upper RH rear of engine compartment, near exhaust system. Temp SENSOR for 2.3L Engine is Located in LH rear of engine compartment.
I Hope this Helps Lead you to a NON-OVERHEATING Pontiac.
Good Luck and Have A Great Evening. rejakwilson

Feb 04, 2009 | 1995 Pontiac Grand Am

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