Question about 1995 Plymouth Neon

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Radiator electric cooling fan cycles on and off every few seconds

I have a 1995 pymouth neon. The fan cycles on and off every few seconds regardless of cooling temperature. Eg. when engine is cold or hot. The cooling system temperature is being maintained at the proper temperature. I know there is a slight freon leak from the air conditioner unit.

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  • ruttanr Nov 22, 2008

    Thanks for the input Merle, the solution to the fan cycling on and off was to top up freon in the air conditioner.

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Had the same problem with a Neon same age as yours. Mine started after driving through a large snow storm that packed snow under the hood. Turned out there is a relay or sensor for the fan that had to be replaced. Once this was done the problem was fixed.

Posted on Nov 19, 2008

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1995 Dodge (Plymouth) Neon overheating issues


I guess the first thing would be to make sure you have all the air out and the radiator is full of coolant.
The second question would be why it overheated again.
As long as the system has air in it, the heater core will not get hot.
Keep in mind the water pump is driven by the timing belt, and both should have been replaced at 80,000 miles or less.

Jan 24, 2013 | 1995 Plymouth Neon

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Engine over heats


Check for collapsed radiator hose first.

Do the cooling fans come on? If not, check fuse, relay and if still no function- fan thermostat switch.

If fans do come on, replace water pump.

Jan 24, 2012 | 2001 Plymouth Neon

1 Answer

Cooling fans on radiator will not come on. what can i do?


Hi kattrinahawk, If your cooling fans do not work, take a second to understand the system: 1)Fans will cycle on and off depending on engine temperature. 2)Fans will come on when Air Conditioning system is On. 3)Fans will come on if certain malfunctions in engine electrical systems. Fans are controlled via the ECM/PCM or sub computer. Fans usually have separate fuses and or relays/resistors. Ok so lets check a few things: 1)Check your engine coolant level, fan operation is depending on correct/full level 2)Turn your A/c on max settings and wait a few seconds see if fans cycle. 3)Check for obstructions or loose wiring around/on fans. 4)Inspect fuses per owners manual locations identification.

May 11, 2011 | 2008 Ford Escape

1 Answer

When i put the defroster on their is fan noise that comes on about every 30 seconds. this only happens when I use the defroster.


It is probably your engine cooling fan. The a/c compressor runs in defrost mode and the fan comes on to cool the condensor.

Nov 12, 2010 | 1995 Plymouth Neon

1 Answer

Where is the radiator fan located


COOLING FANS UNDER THE HOOD.IN THE ENGINE COMPARTMENT.LOOK UNDER HOOD BEHIND FRONT GRILLE AND CAR AIR CONDITIONER CONDENSOR AND RADIATOR YOU WILL SEE 2 ELECTRIC COOLING FANS

May 06, 2010 | 1995 Oldsmobile Aurora

1 Answer

My osmobile aurora is overheating and I channge


I would check to see if the cooling fan is coming on. Could be a bad fan switch. When the air is turned on, it turns on the cooling fan regardless of engine temp.

Mar 16, 2010 | 1995 Oldsmobile Aurora

2 Answers

Overheating


Sounds like a cooling fan are not turning on. Assuming you have an electric cooling fan. It could be something simple like a fuse or a relay which is stopping the fans from working, or it could be something as bad as the motor burning out on the fan.

Aug 10, 2009 | 1995 BMW 5 Series

3 Answers

Overheating after thermostat replacement


The engine is kept cool by a liquid circulating through the engine to a radiator. In the radiator, the liquid is cooled by air passing through the radiator tubes. The coolant is circulated by a rotating water pump driven by the engine crankshaft. The complete engine cooling system consists of a radiator, recovery system, cooling fan, thermostat, water pump and serpentine belt.

Check the coolant level in the recovery bottle or surge tank, usually mounted on the inner fender. With the engine cold, the coolant level should be at the FULL COLD or between the FULL HOT and ADD level. With the engine at normal operating temperature, the coolant level should be at the FULL HOT or HOT mark. Only add coolant to the recovery bottle or surge tank as necessary to bring the system up to a proper level. On any vehicle that is not equipped with a coolant recovery bottle or surge tank, the level must be checked by removing the radiator cap. This should only be done when the cooling system has had time to sufficiently cool after the engine has been run. The coolant level should be within 2 in. (51mm) of the base of the radiator filler neck. If necessary, coolant can then be added directly to the radiator.

While you are checking the coolant level, check the radiator cap for a worn or cracked gasket. If the cap doesn't seal properly, fluid will be lost and the engine will overheat.

Worn caps should be replaced with a new one.

Periodically clean any debris; leaves, paper, insects, etc. from the radiator fins. Pick the large pieces off by hand. The smaller pieces can be washed away with water pressure from a hose.

Carefully straighten any bent radiator fins with a pair of needle nose pliers. Be careful, the fins are very soft. Don't wiggle the fins back and forth too much. Straighten them once and try not move them again. It is recommended that the radiator be cleaned and flushed of sludge and any rust build-up once a year. If this has not been administered within the stated time, this may be why your vehicle is overheating at this time. Have the Radiator flushed asap if this is the case.

Now, if the coolant level is proper and, the cap is in fair or good condition, i would advise to move in the direction of the cooling fans and sensors as well. These fans are vital to the cooling process as well. The cooling fans must cycle in intervals to keep the coolant cool during stop and gp driving or, long idle. They are also very important during the operational period of the AC during travel as well. i recommend inspecting the cooling fans while the engine is running. they should cycle during the running period. if thsi is not the case, you will need to test the operational value of these devices. The test procedure follows below


TESTING


1. If the fan doesn't operate, disconnect the fan and apply voltage across the fan terminals. If the fan still doesn't run, it needs a new motor.

2. If the fan runs, with the jumpers but not when connected, the fan relay is the most likely problem.

3. If fan operates but a high current draw is suspected continue with the following ammeter TESTING.

4. Disconnect the electrical connector from the cooling fan.

5. Using an ammeter and jumper wires, connect the fan motor in series with the battery and ammeter. With the fan running, check the ammeter reading, it should be 3.4-5.0 amps; if not, replace the motor.

6. Reconnect the fan's electrical connector. Start the engine, allow it to reach temperatures above 194°F and confirm that the fan runs. If the fan doesn't run, replace the temperature switch.



Ok, Now we will move on to the next possible issue. The water pump. ok, due to the fact that your pump is driven by the drive belt, you will need to start the engine and listen for bad bearing, using a mechanic's Stethoscope or rubber tubing.

* Place the stethoscope or hose on the bearing or pump shaft.
* If a louder than normal noise is heard, the bearing is defective.

Replace the pump in this case.

You will also notice leakage around the pump housing if the seal has failed as well. this will strain the impeller and, ruin the pump.

Jul 26, 2009 | 2000 Dodge Neon

1 Answer

Radiator coolant fan


Some car designs only have one radiator fan as opposed to 2 fans. Typically the second smaller fan is specifically for the AC when its turned on. But with the larger single fan design, its turns on when the AC is on regardless. Now if the fan doesnt come on at all at any other time... like to prevent the car from overheating, you may want to check the Engine Coolant Temperature Sensor. Its located on the engine and easy to replace. Can be tricky to find. They only run 20 bucks thankfully.

May 17, 2009 | 2000 Oldsmobile Alero

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