Question about 1995 Chevrolet Monte Carlo

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1995 Monte carlo both fans don't work and it runs hot help put new thermostat in and fan motor now what

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If your car is still running hot first make sure the repairs you've already made are completed properly. Then if so, perform a coolant system pressure to see if and where you may be leaking coolant. You could have a leak in the system somewhere like your water pump or radiator. Auto Tech Info

Posted on Jan 08, 2011

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Try unplugging the coolant temperature sensor and see if the fans come on.If they do then the coolant temp sensor needs to replaced. The sensor is located in the intake manifold by the upper radiator hose.Here is a link to provide a general location http://www.greatautohelp.com/sensor-location/3400.html

Posted on May 28, 2010

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I have 01 monte carlo. The fan's are not working. Put a new censor in and relays. The fans are still not kicking on. Ran some code and one was PO 140 and PO 403 any idea what these codes mean?


as far as these codes they refer to the PCM signals to the o2 sensors ,but i don't think they would affect the cooling fans , does the engine overheat ? are you loosing coolant ? one reason the fans may not cut in is if the waterpump isn't working but you would have noticed lowcoolant , do the top and bottom radiator hose's get very hot ?if both hoses very hot and you've changed the sensor etc it may well be the actual fan motors , try putting a direct power and earth to the fan wire connectors , this way you will know if fans are good if they start , then the problem may be in the wiring , which can be a nightmare to trace , hope this is of some help

Jul 29, 2014 | 2001 Chevrolet Monte Carlo

2 Answers

97 Monte Carlo LS getting hot while driving then cools off when letting off gas


have a coolant pressure test done. Have the radiator cores checked for blockage. Sometimes when an engine has sat for a period of time, rust and scale form in the water jackets of the engine. ON running ,this breaks away and blocks the cores of the radiator Other times the old motor tolerates a partially blocked radiator when a relative new motor needs all the cores free to maintain the temperature.

Jun 14, 2013 | 1997 Chevrolet Monte Carlo

1 Answer

2001 monte carlo cooling fan running all the time and no temp indicated on the gauge


I had the same problem i had a manual shut off switch installed where i could turn the fan off and on from my dash by the steering column

Nov 17, 2012 | 2001 Chevrolet Monte Carlo

1 Answer

Overheating


Replace thermostat and radiator cup flush radiator with RF-505 flush run engine with no thermostat for 30 minutes than fit new thermostat check radiator hose top and bottom has to be even hot if still same then change the central unit for the fans .

Sep 12, 2012 | 1995 Chevrolet Monte Carlo

1 Answer

Bought 2001 Lumina.. head gasket was leaking. fixed that n noticed cooling fan motors were not running. Replace all 3 relays n ect n fans started working. Drove it two days n it started runnin hot pulled...


I had a similar problem. Is your temperature gauge pegged to the right as very hot? Or reads always cold, even when hot. If it is a 3100 motor their is a coolant temperature gauge sending unit under the air breather intake that is right next to where you replace the thermostat.

Get a haynes repair manual at a parts dealer, Amazon, or your public library.
On the Chevrolet Lumina, Monte Carlo, & Impala FWD 1995 to 2005 it's under section 3-8 on page 3-6. It goes into great detail, and it's too complicated to explain here. If your sensor is bad, but the wires and fuses are good then the fans won't run.

Your second fan only runs when the air compressor is turning, If your ac compressor is not running then the sensor will not have the passenger fan run.
You have to see if the fan motors are good and then the wiring is good, and no fuses blown. You might blow fuses so have extra blue ones if I remember right. Recheck fuses after testing.

Feb 24, 2011 | 2001 Chevrolet Lumina

1 Answer

95 monte carlo 3.1 cooling fan comes on at 3/4 temp, when the coolant temp sensor is disconnected both fans run strongly until car is shut off, but when its connected only 1 fan will come on at 3/4 temp


to check both fans work at high temps put a sheet of card over the rad to block off airflow and run engine till hot,keeping an eye on when they both start (one is set at a lower temp than the other),if the second fan dont start when the engine is really hot THEN you have a problem.....

Oct 15, 2010 | 1995 Chevrolet Monte Carlo

1 Answer

1999 3.1L V6 Monte Carlo: Had the engine replaced. Now the dual cooling fans do not come on when the engine heats up as before. They only come on now when the A/C is running. How do I get this corrected so...


The fans are controlled by the ECM.they will not normally come on untill about 235 degrees.Have someone put a scan tool on your car,run it and see how hot it gets.Your new engine may a different coolant sensor, which changed the reading on your gauge.

Apr 09, 2010 | 1999 Chevrolet Monte Carlo

2 Answers

2001 montie carlo fans wont cool off engine


if it is overheating try replacing the thermostat first. If it is stuck closed the coolant cant cycle through the engine properly. Also, try a flush and fill.

Feb 25, 2010 | 2001 Chevrolet Monte Carlo

1 Answer

2002 monte carlo overheating


Better make sure the fan works. There is a switch on the radiator that turns the fan on when it gets to a certain temperature. It could be the fan or the switch. Your thermostat is not your cap, it's in a different location. (Usually at the engine end of the upper radiator hose) Get the leak check! A good garage can pressure test the system to see what leaks you might have.

Sep 07, 2009 | 2002 Chevrolet Monte Carlo

1 Answer

1995 monte carlo overheating


If the radiator fan isn't coming on I would check the coolant temperature sensor which tells the fan to turn on. Check your owners manuel for locations of fuses or relays that control the fan. Lastly you can unplug the fan and direct jumper it to make sure the motor isn't burnt out. I hope this helps.

Feb 14, 2009 | 1995 Chevrolet Monte Carlo

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