Question about 2007 Hyundai Atos Prime

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Over heating the car heats up when climbing a hill , when heater is put on temp drops to normal , when car is parked and heater is put on temp drops fast to normal , fitted new thermostat , new water pump , rad flushed and has antifreeze.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Ravege
  • 327 Answers

SOURCE: 2000 Hyandai Elantra overheating

anytime

Posted on Sep 25, 2008

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  • 566 Answers

SOURCE: No Heat

hi this sounds like the elec operated coolant control valve has failed? common fault on ford models however to confirm this? if you warm engine to normal then turn temp setting to full hot do not put fan on yet! locate the heater hoses from engine to point they go into bulkhead of engine bay? feel each hose for heat ? if one is warm/hot and other much cooler/cold ? then cooler valve is not opening so coolant can flow thro heater matrix inside car understand?? unfortunate;y this valve is not servicable but is easy to change and not too expensive ? its location is normally at point prior to entering car interior and you will find it if you follow heater hoses? it may well be in bay below the grill below w/screen is normally plastic renewal will be apparent when you see it ? hope this helps ? just one point all above is on assumption you have checked radiator coolant level is topped up ?? if not this will also give no heat thro heater ? if very low

Posted on Oct 28, 2008

  • 740 Answers

SOURCE: 2000 Elantra Overheating

First when vehicle is cold like in the morning check and make sure that the vehicle has enough coolant/ antifreeze in radiator and reservoir. If coolant is need use a 50/50 mixture of water and antifreeze. You will need some time to do this let car run at idle until the temp guage is in the middle NOT+ normal operating temperature. At this point if the thermostat should be in the open position. Let vehicle run and check to make sure that radiator fan comes on. This should come on when guage is about midway/half way. If temperature rises above half going to h/hot and fan doesn't come on, you either have a BAD FAN BAD FAN SWITCH BAD FAN RELAY OR BLOWN FAN SWITCH FUSE. You will need to check all of the following I will help if its needed. If fan comes on and doesn't go off and vehicle continues to get hot even with fan running. Feel radiator hoses and see if the lower radiator hose is cool/cold. If it is you have thermostat that stuck closed. Replace thermostat and fix problem. If all the above is good and vehicle continues to over heat. THE BAD NEW IS THAT YOU MAY HAVE A BLOWN HEAD GASKET /CRACKED HEAD /BROKEN WATER JACKET. Basically you will need a HEAD JOB at least a head gasket. ONe tell tail sign of this is oil looking like milkshake/chocolate milk-a creamish while residue in oil or antifreeze. Contact if you need hel0p. Good Luck and thanks for using FIX YA

Posted on Jan 17, 2009

greg_margo
  • 1959 Answers

SOURCE: overheat 2001 hyundai tiburon

Only 2 parts remaining are the thermostat and waterpump. Always start with the thermostat when diagnosing an overheating problem. If the car is overheating constantly under all conditions and coolant is backing up into the reservoir, it's very likely to be the thermostat. If it only overheats at low speed or idling, it's more likely the waterpump.

Posted on Aug 11, 2009

hfmiles
  • 1165 Answers

SOURCE: I HAVE A 2003 TIBURON

My guess is trapped air in the cooling system. If the cooling system was just filled with antifreeze without bleeding the air, it could cause sporadic overheating. It could also be the cooling fan not coming on at high speeds. Next time the temperature rises, turn on the defroster for th front windshield. That should cause the air conditioner to come on, which in turn will turn on the cooling fan. If the temperature drops, I would suspect the cooling fan sensor is faulty.

Posted on Jan 14, 2011

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