Question about 2005 Dodge Neon

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Car was left in idel with a/c on and car overheated. Coolant was on the ground. Coolant is now fine but neither fan is turning when the a/c or car is on and heat seems to be rising again. 2005 Dodge Neon SXT

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It could be a blown fuse and or a bad relay

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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Have a 2004 Pacifica that keeps overheating. Noticed the fan wasn't running and had it replaced. Still overheating. Told the relay is fine. Anyone have any suggestions???


Probably not much you can do yourself. A mechanic would check the operation of the fan relay by jumpering a wire to bypass it, then check each terminal for power and ground. I assume that has been done. Then the mechanic would watch the computer with a scanner to see if the engine computer commands the relay to turn on when the engine temp reaches 225 degrees, or the ac is turned on.
The engine computer provides the ground circuit to make the fan relay work.
For example, if the coolant temp sensor is faulty, the computer won't know the fan is needed.

Jun 14, 2015 | 2004 Chrysler Pacifica

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Hi my 2000 Honda odyssey temperature gauge rises to red but shows no signs of the car overheating but while driving everything is normal but this only happens while in idle any suggestions? Need help asap


Make sure your cooling fans come on. If overheating at idle it is likely for the fans to have failed. While driving the air rushing through the grill cools the coolant in the radiator which is probably why it's fine while driving. You shouldn't drive the car if overheating as this will cause damage to the engine. Check fan relays, fuses and fans. If you turn the A/C on the fans should come on.

Apr 20, 2014 | Cars & Trucks

1 Answer

My coolant fan does not work


replace the fans as they may be overheating from internal failure or seized bearings/bushes

Mar 10, 2014 | Cars & Trucks

1 Answer

2000 Nissan Maxima Overheating


sounds like the water temp sensor is not working you could hot wire the fan by unpluging it and runnig ahot wire and ground to it

Sep 19, 2012 | 2000 Nissan Maxima

2 Answers

2002 Honda Civic...The car is overheating randomly. Replaced the thermostat,and fan relays. Car runs fine and then randomly overheats with gauge going way up and then sometimes coming down.Overheating and...


RADIATOR COOLING FAN NOT RUNNING COULD BE BAD ENGINE.COOLANT TEMPERATURE SENSOR IS FAULTY IF COOLING FAN IS NOT TURNING ON AT SET TEMPERATURE OF 196 TO 203 DEGRESS.CHECK SEE COOLING FAN RUNNING WHEN ENGINE RUNNING HOT.IF YES FLUSH RADIATOR , FLUSH ENGINE BLOCK, HEATER CORE,REPLACE RADIATOR CAP.MAKE SURE YOU HAVE 50/50 ANTIFREEZE AND WATER IN THE COOLANT SYSTEM.CHECK WATER PUMP WEEP HOLE IF LEAKING REPLACE WATER PUMP. IF COOLANT FAN DONT TURN ON 196 TO 203 DEGREES, YOU HAVE FAULTY COOLING FAN,SHORT IN FAN WIRING OR ENGINE COOLANT TEMPERATURE SENSOR FAULTY.IGNITION TIMING WILL CAUSE ENGINE TO OVER HEAT.

Aug 17, 2011 | 1999 Honda Civic

1 Answer

2002 impala 3.8. Overheated. Had coolant leak.Replaced bad coolant elbows and thermostat with fail-safe. Car still overheats. Noticed cooling fans not running when A/C turned on. Blown fuses. Replaced....


A bad relay will not blow a fuse. The radiator cooling fan must run with the A/C on or the vehicle will overheat and the A/C will perform poorly. First I would check the draw on you cooling fan motor-it may be blowing the fuse, or you have a wire shorted to ground.

Jun 18, 2011 | 2006 Chevrolet Impala

4 Answers

2002 pt cruiser - overheating - collant is up,


SOUND LIKE COOLANT TEMPERATURE SENSOR .BUT FIRST HOTWIRE COOLANT FAN USING JUMPER WIRES TO BATTERY IF FAN RUNS ITS GOOD IF NOT REPLACE FAN MOTOR..ALSO HOT WIRE RELAY TERMINAL 86 TO BATTERY POSITIVE POST AND 85 TERMINAL TO BATTERY GROUND POST USING JUMPER WIRES.IF IT CLICK ITS WORKING IF NOT NO SOUND REPLACE RELAY.IF ALL IS GOOD.THEN THE COOLANT TEMPERATURE SENSOR IS BAD.

Jun 06, 2010 | 2002 Chrysler PT Cruiser

1 Answer

96 Accord Ex overheating


Based on the info you provided,this appears to be a classic radiator problem. The tiny coolant passages in the radiator are clogged, and are not allowing coolant to flow thru to let the fans do their work.

Apr 02, 2010 | 1996 Honda Accord

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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