Question about 2002 Dodge Neon

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Engine is overheating, repleaced water pump, and radiator. Also replaced thermostat. any ideas why its still getting hot... Fans are in working condition as well.

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Hello trishajscott and thank you for asking your question, on Fixya.

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 2002 Dodge Neon, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people like you. So here is the link:
How to diagnose your overheating Dodge Neon

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Thanks for the vote, and good luck!

Posted on Dec 27, 2010

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2 Answers

Overheating


Well one hot and one cool hose means the coolant is not flowing thru the radiator. That could be from a defective pump, closed thermostat, air in the system, or a blockage in the radiator. You might try running the engine with the thermostat out to check flow.

May 30, 2013 | Chrysler Cars & Trucks

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Engine overheating


check for water coolant circulation. either you might have a clogged radiator or faulty water pump. to check the radiator after you run the engine for a while switch it off and try to find an easy access to radiator vents and touch all surface to see whether is all ho or if is some,then you remove it and send it for cleaning. as regards water pump,take the thermostat out put water in and start the engine follow the water circulation when you rev.if it rotates the water pump is working if is steady and coming upwards to over flow then the water pump is faulty. Also the other possibility is the matrix to be clogged..

Aug 30, 2012 | 1996 Ford Taurus

3 Answers

Engine overheating i have replaced the radiator has plenty of water


replace thermostat.then bleed coolant system, this is how you do it.fill the cooling coolant system with 50 / 50 dexcool and water to raise boiling point,straight water will evaporate boil away cause engine to overheat catch fire thats why you need 50 / 50 mixture antifreeze and water.to bleed coolant system first fill coolant system until coolant stay at the full cold mark on the the coolant overflow jug,then you start engine allow it to idle,place the heater and ac control in any ac setting except max and the temperature control to the highest setting,run engine until lower hose to water pump is hot. with the engine hot run the engine speed up to 3000 rpm and allow it return to idle, repeat this 5 times. slowly open the bleed valve on the thermostat housing or look for bleed valve at the water pump heater hose.open bleed valve for 15 seconds to expel any trapped air.then top off the coolant as necessary,and when top radiator hose hot thermostat open up.keep adding cooling to overflow until coolant level stop at full cold mark dont over fill coolant.if engine seem like overheating while looking at cooling gauge turn off engine wait a while until cool off add more coolant until coolant level stay stable and dont drop any.when open radiator overflow cap use large rag over the radiator cap to keep from getting scald open radiator cap a little at a time but dont open radiator cap until engine cool down first.replace the radiator overflow cap, thermostat,and engine coolant temperature sensor and check the cooling fans fuses and relays see what happens.

Aug 18, 2012 | 1998 Oldsmobile Intrigue

2 Answers

1988 b2200 is overheating--we've changed out the lower radiator hose, thermostat, and the upper hose is fine. Why is it overheating? Radiator, heat pump, or water pump?


!st check and make sure the water is flowing in the radiator, then check
the timeing, Mazda will run hot if the timeing is rong.

Jul 19, 2012 | 1988 Mazda B2200

2 Answers

My car said "engine hot


Full coolant level does not mean your engine cannot overheat. You need to fix the problem as overheating will destroy the engine if not addressed.

The radiator cooling fans must be working, as must the water pump. The thermostat must also be working properly.
There must also be no air in the cooling system as air locks will impair water flow. When cooling systems are drained fully or partially and re-filled air in the system must be bled out using the correct bleeding procedure for the particular engine/cooling system. Failure to do this properly will lead to overheating.

If you ONLY see the overheating warning when running your aircon you need to check that the electric radaitor fans are kicking in at idle when you switch on and run the aircon and the engine has been warmed up some. If they do not start operating when the a/c is running you will get an overheating condition in normal driving conditions.

If the radiator fans are operating normally and you still get an overheating warning when the aircon is on or off the most likely culprit is a faulty thermostat in the engine's cooling system which will need to be replaced.

If you have either a faulty thermostat or if the water pump in the cooling system fails you will get continuous overheating whether the aircon is on or off.

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1 Answer

Overheating


OVERHEATING CAN BE CAUSE BY MANY THINGS LIKE FAULTY THERMOSTAT AND FAULTY RADIATOR PRESSURE CAP,TOO MUCH WATER IN COOLANT SYSTEM NEED 50 / 50 WATER AND ANTIFREEZE.LOOK FOR WATER PUMP WEEP HOLE LEAK, IF COOLANT LEAKING OUT WEEP HOLE WATER PUMP BAD NEED REPLACING.CHECK FOR LOW COOLANT LEVEL, YOUR RADIATOR OVERFLOW JUG SHOULD HAVE COOLANT AT THE FULL COLD MARK IF NOT KEEP ADDING COOLANT INTO COOLANT OVERFLOW JUG UNTIL COOLANT STOP DROPPING AND FULL COLD MARK, IF OVERFLOW COOLANT JUG WAS EMPTY RADIATOR IS LOW ON COOLANT.WHICH CAUSE AIR IN COOLANT SYSTEM KEEPING THE ENGINE COOLANT TEMPERATURE SENSOR FROM BEING SUBMERGE IN HOT COOLANT WHICH TURN ON THE COOLANT FANS.WHEN ENGINE COOLANT TEMPERATURE GET CERTAIN SET TEMPERATURE LIKE 190 DEGREES THE PCM AND COOLANT SENSOR WILL TURN ON COOLANT FANS, IF VECHICLE OVERHEATING COOLANT FANS NOT WORKING EITHER YOU HAVE FAULTY ENGINE COOLANT TEMPERATURE SENSOR CHECK COOLANT FANS FUSE AND RELAYS. YOU CAN CODE SCAN CAR TO SEE IF YOU HAVE FAULTY PCM, FAULTY ENGINE COOLANT TEMPERATURE SENSOR OR FAULTY COOLANT FAN RELAY.IF COOLANT FAN AND ENGINE COOLANT TEMPERATURE SENSOR OKAY,YOU HAVE CORRECT COOLANT LEVEL IN COOLANT SYSTEM, THERMOSTAT AND RADIATOR PRESSURE CAP BEEN REPLACED, YOU COULD HAVE BLOWN HEAD GASKET CHECK ENGINE OIL LOOKS LIKE MILK SHAKE HEAD GASKET BLOWED ALSO WHEN HEAD GASKET BLOWED YOU CAN DRIVE CAR SHORT DISTANCE START OVERHEATING AND YOU LOOSE ENGINE POWER SUSPECT BLOWED HEAD GASKET.

Aug 04, 2011 | 1999 Oldsmobile Alero

1 Answer

IT KEEPS OVERHEATING


REPLACE THE THERMOSTAT AND RADIATOR PRESSURE CAP.IF COOLANT LOW, ADD MORE COOLANT THROUGH COOLANT OVERFLOW UNTIL COOLANT LEVEL IN THE COOLANT OVERFLOW STAY AT FULL COLD MARK.REASON POUR COOLANT THROUGH COOLANT OVERFLOW MOST GM CARS DONT HAVE RADIATOR CAP.WHEN YOU GET COOLANT LEVEL OKAY, CRANK CAR LET IT IDLE UNTIL ENGINE GET HOT BUILD UP PRESSURE THEN TURN OFF CAR.CHECK FOR COOLANTS LEAKS AT THE RADIATOR HOSES,CHECK FOR LEAKS AT THE RADIATOR, CHECK FOR LEAKS AT WATER PUMP WEEP HOLE IF YOU SEE COOLANT LEAKING FROM WEEP HOLE REPLACE WATER PUMP. IF CAR OVERHEATING WHILE IDLING YOUR COOLING FANS NOT WORKING CHECK COOLING FANS FUSE AND RELAYS.IF FUSE AND RELAYS OKAY THE ENGINECOOLANT TEMPERATURE SENSOR BAD.

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1 Answer

I have oldsmobile alero 1999, problem is that the engineer idles after running for an hour or when engine is getting hot


SOUND LIKE ENGINE COOLANT FANS NOT RUNNING.CHECK TO SEE IF COOLANT FANS RUNNING WHEN ENGINE START OVERHEATING.IF NO CHECK COOLANT FANS FUSE AND RELAYS.IF ALL IS GOOD.HOTWIRE COOLANT FANS TO MAKE SURE THEY ARE WORKING.IF NO REPLACE FAN MOTOR.IF FAN RUN WHEN YOU HOT WIRE IT.THE COOLANT TEMPERATURE SENSOR FAULTY ARE THE PCM FAULTY YOU CAN USE A SCANNER TO CHECK THEM FOR FAULT CODE.IF EVERYTHING GOOD SO FAR.REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP FLUSH ENGINE BLOCK AND RADIATOR.CHECK RADIATOR AND CONDENSOR AIR CORES MAKE THEY NOT STOPPED UP WITH LEAVES AND OTHER DEBRIS THAT WILL BLOCK OFF AIR FLOW THROUGH THE FRONT GRILLE RADIATOR CORES.ALSO CHECK WATER PUMP WEEP HOLE IF ITS LEAKING WATER PUMP NEEDS REPLACING.

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1 Answer

Hi Honda crv (98) R overheating.


SOUNDS LIKE YOUR THERMOSTAT IS STICKING,REPLACE THERMOSTAT FIRST OVERHEATING WILL DAMAGE ENGINE.IF THAT DOSEN'T WORK HAVE WATER PUMP CHECKED.FANS WON'T TURN ON IF HEAT FROM ENGINE IS NOT FLOWING INTO RAD BECAUSE THEROMOSTAT STUCK CLOSED,OR WATER PUMP FAILING

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2 Answers

Aloha,have 98 base mustang, overheating after many replacements


i would change the water pump and check for plugs in the heater core

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