Question about 2001 Hyundai Elantra

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Engine runs hotter than normal..lower radiator hose stays cold...

New stat, waterpump...flushed system..once fans come on they stay on

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You could have air in the cooling system. look for a bleeder screw in a small coolant line.

Posted on Mar 11, 2009

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3 Answers

Why does temperature gauge only reach a little past half?


Larry, If the cooling system was not bled properly, the temperature could fluctuate up to 3/4 then normally back down to 1/8 on temp gage.
If your gage is just staying a little over half when running, that is actually normal and acceptable.

Mar 23, 2016 | 2000 Buick Century

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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

1 Answer

95 jeep cherokee heat


Both of the hoses at the heater core should be hot. If one is cold the heater core is plugged. You can think of it this way. If the thermostat was stuck closed and you checked the upper and lower radiator hoses with the engine hot the upper hose would be hot and the lower hose would be cool because there is no flow. If you check the hoses with a properly working t-stat both hoses will be hot when the t-stat is open and coolant is flowing. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Jan 21, 2012 | Jeep Cherokee Cars & Trucks

2 Answers

Over heating on my dodge intrepid 1997 after short time of driving


CHECK ENGINE COOLANT LEVEL.MAKE SURE COOLANT OVER FLOW JUG HAS COOLANT IN FULL COLD MARK.IF COOLANT OVER FLOW JUG IS EMPTY RADIATOR GOT TO BE LOW ON COOLANT POUR COOLANT IN THE OVER FLOW UNTIL COOLANT LEVEL STAY AT THE COLD FULL MARK.SEE IF RADIATOR DONT HAVE A RADIATOR CAP YOU HAVE TO POUR COOLANT IN THE OVER FLOW JUG COOLANT WILL FLOW DOWN IN RADIATOR UNTIL COOLANT LEVEL STOP AT FULL COLD MARK.IF COOLANT LEVEL OKAY.YOUR THERMOSTAT NEED CHANGING ALSO RADIATOR PRESSURE CAP.HAVE RADIATOR FLUSHED OUT.HAVE ENGINE BLOCK FLUSHED OUT.CHECK ENGINE OIL IF OIL LOOK LIKE MILK SHAKE ON OIL DIP STICK YOU HAVE LEAKING HEAD GASKET THAT WILL CAUSE ENGINE OVER HEAT WHILE CAR IN MOTION.CHECK WATER PUMP MAKE SURE ITS WEEP HOLE NOT LEAKING ANTIFREEZE IF SO WATER PUMP NEED REPLACING.

Jun 20, 2011 | 1997 Dodge Intrepid

2 Answers

Car overheats new radiator 2 t stats diffrent eng new water pump, had same problem with first motor cust cooked first motor filled cooling system with radicat plus overheats sitting in shop heats up real...


Okay sounds like you have a clog within the system, first of all, drain the whole cooling system, run clean water thought the top of the radiator, look to see when the water comes out nice clear, replace the lower hose if you have a petcock close that, refill the top of the radiator, until it is full, start the engine, with engine running turn your heater, let the car warm a little, then reopen the petcock or loosen the lower hose and let the water draw out a little until is pouring out nice and fast, then re-close the petcock and stop the engine.
try and get 40% of the water out, and replace it with 50/50 antifreeze fill to the right point of the cars specs.

Sep 05, 2010 | 2001 Chevrolet Cavalier

1 Answer

Which way does the waterpump turn on a 1985 Ford LTD 302?


The feature than can determine the way the pump turns would be whether they were driven by the smooth side of a serpentine belt on the one had, vs. the grooved side of a serpentine belt or a V belt on the other hand.

It would really be a good idea to get a numeric reading on the engine temperature...

Of course, the number one issue is the thermostat. If it is too high of a range, or is not opening properly, the 4-core radiator will never be called on.

Next is the possibility that steam/vapor is collecting around the t-stat. I had a big problem with that in an Aries K. Once it got hot enough to open the t-stat a few times the temperature settled down.

If the fan is not doing its job sufficiently you will get overheating at stop lights and in crawling traffic, but cooling that is fine above maybe 15 or 20 MPH.

If the bottom radiator hose has failed, it can collapse due to the suction of the water pump. For the whole length of that hose you should not be able to flatten the hose by hand. It should have a spiral of wire, a "spring," inside it that prevents that. If that wire has corroded, and isn't doing its job you can get compromised flow.

When the engine is cold, start it up. Before long, the heater hose that comes out neat the t-stat should start to warm up, while the upper radiator hose stays cold. The closed t-stat forces circulation through the heater system. This causes flow over the hot surfaces, and carries the heat from the area of the cylinders to the area of the t-stat. without that, the water's heat would take 10's of minuted to get to the t-stat.

Next, when the heater hoses get too hot to touch comfortably, but before the engine overheats, the upper radiator hose should start to warm up. The t-stat will start to open, and a little hot water will sneak out of the engine, heating the hose a little. That will introduce a little cold water from the radiator into the water pump, where it will get quickly mixed with the water circulating through the heater system, closing the t-stat pretty quickly. So the initial warming of the upper radiator hose will be pretty slow.

If it overheats before the upper hose gets too hot to touch, you have a t-stat problem. Either the t-stat is failing to do its job, or it is not getting the heat signal it needs to operate properly.

If the heater system is clogged or plumbed wrong, it will not allow the requisite circulation.

I hope this gets you on the road to fixing your overheating problem. A 302 with a mondo radiator as you describe should have no overheating troubles, even in the desert!

Jun 19, 2010 | 1985 Ford Crown Victoria

1 Answer

My radiator on my 1994 toyota hilux sulf is over heating just sarted in last few days. Temperature gauge fluctuates when i turn air conditioning on.how do i fix this


First check if you have any leaks in the cooling system , then check if level is correct(radiator and expansion tank , check level when car is cold , never open radiator when it's hot).
Then verify operation of radiator fan , if it's electrical fan it should comes on when temp. goes over normal,
if it's a clutch fan- it should pick up a speed and be more loud. If fan is not on and engine is starting overheating , check upper and lower radiator hoses.
If upper hose hot and lower hose cold or warm then you might have stuck close or prtially closed thermostat , difference between lower and upper hoses when t/stat works ok is about 10-15 degrees,
not really noticeable for hand.So if you don't feel a lot of difference between hoses temp. , and fan is not on , check fan or fan clutch itself.
If lower hose cold , replace thermostat and purge system.
If everything above is working properly , and it's still overheating , you may have bad water pump or head gasket.

Jun 18, 2010 | 1986 Toyota Pickup 4WD

3 Answers

How to drain 2001 chevy caviler radiator


Hi

It sounds very much from your description that there is a strong possibility of air being trapped within the cooling system and causing the problem. This will cause the low fluid warning to appear on the car and although the vehicle will appear to be full of fluid - in fact you cannot replace enough fluid because of an air trap in the system.

Most vehicles cooling systems can be bled by removing the cap from the radiator or header tank and then simply allowing the vehicle to tick over for 10 minutes or so. Check and replace the fluid as the air is expelled from the system through the open header tank/radiator.

This may well resolve the problem without any further action on your part.

Some vehicles do have specific bleeding procedures for the cooling system but as far as I am aware this simple procedure is the standard method with your vehicle.

Also it is important to pay attention as to why the vehicle is loosing coolant in the first place. Is there a leak any where - check coolant hoses are not cracked. Is vehicle overheating because of fan failure hence boiling off fluid? Is there evidence of water getting into oil pointing to head gasket problems?

These things should all be considered in addition to clogged radiator.

Hope this helps. Please do rate this answer. Thanks.

Sep 15, 2009 | 2001 Chevrolet Cavalier

3 Answers

Have a 1958 Chevy 348 / 409 engine that runs hot.


Waterpump? The blades can erode away from age and old antifreeze. Or not enough airflow thru the radiator. Try blowing through the fins with an airhose to see if it is dirty or plugged.

Aug 31, 2009 | Chevrolet Impala Cars & Trucks

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