Question about 2003 Kia Sorento

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Engine wants to run hot, especially when the air is running. Changed the thermostat and it does the same thing. Just have flushed the system out, took the thermostat out, and it still gets hot.

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A loose belt can cause an engine to run hot. Such as the tensioner not keeping tension on the belt causing the belt to slip preventing the water pump to turn correct. Also the overflow tank cap can cause a engine to overheat. Have the cap pressure tested. Which is usually free at your local parts store.

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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I have a 2005 Buick rendezvous that has had a radiator cap and radiator water pump intake gasket flushed radiator why is it still running hot


Being it appears from your post the intake gasket was changed (I'm hoping it was the lower intake gasket) then I would suspect the thermostat.

IF the thermostat was changed then another, and pretty common cause can be an 'air lock' in the cooling system.

There should be 2 bleeder valves or screws located on the engine.
One should be on the thermostat housing and the other should be located above the water pump.

There are a couple of different methods of bleeding the air from the system. One is to do it while the engine isn't running, the other is while the engine is running and starting to get warm.

Both methods can work and I've used both.

The method with the engine not running I usually use while I'm refilling the cooling system after I've made repairs.

The method with the engine running is the one I've used if there have been previous repairs done but the engine still overheats or the heater/defroster doesn't put out any heat, even though the temperature gauge says the engine is warm or getting hot.

IF THE ENGINE RUNNING METHOD IS USED CAUTION IS THE WORD OF THE DAY AS THE STEAM AND COOLANT COMING FROM THE BLEEDER(S) CAN BURN YOU!!

Hopefully this video will show you where the bleeders are located.
Hope this helps.

Jan 28, 2016 | Buick Cars & Trucks

2 Answers

My 2005 Cadillac escalade is running hot change thermostat and flushed out radiator still running hot when released cap it was a lot of pressure coming from coolant


the 3 easiest things/ tests to do would be these,

1 remove cap from cooling system and run until at operating temp, check for bubbles in cooling system, if bubbles then there is a head gasket failure ( exhaust gases in the system )

2 check cooling fans to see if working, most have a high and low, for under a light or heavy load.

3 could have a water pump that has a failed impeller and not circulating coolant

Sep 03, 2015 | Cadillac Cars & Trucks

1 Answer

Heater not blowing hot air


Sounds as if you have a temp actuator gone bad & stuck on the ac side. If not you can make sure your heater core isn't stopped up. Take the hoses off at firewall going to heater core and shoot water in each side with a water hose nozzle till clear water comes through it. Sometimes flushing a radiator system isn't good enough.

Nov 06, 2017 | Dodge Charger Cars & Trucks

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Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

1 Answer

Running hot?


2 possible things. 1st(cheapest) you have air in cooling system. Need to burp it. 2nd(expensive) you may have blown head gasket. I tend to think air is in cooling system and your level is low.

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1 Answer

2004 dodge 1500 hemi, 5.7,.....running hot at highway speeds,I have flushed the system 2 times, replaced thermostat.....still runs hot at highway speed.....I have read about " back flushing the...


If running ok at idle and not running hot, then I'd first examine my rad hoses very carefully, especially lower rad hose. If old and soft, easy to squeeze then replace it/them. Also replace rad cap as well. A soft hose may be collapsing when engine RPM increases, and restricting flow through engine. Next would be to observe water flow with engine running to be sure water pump is doing it's job. I assume you have cleaned and checked rad already. Note: if you run at highway speeds and it gets hot, try turning heater on high fan and hot setting to see if temperature gauge goes down at all, which would make me lean toward a faulty radiator.

Aug 03, 2011 | Dodge Ram Pickup 1500 Cars & Trucks

1 Answer

Jeep Grand Cherokee running hot. I've changed the


Check your radiator for external and internal obstructions (leaves, bugs etc on the a/c condenser or leaves between the condenser and radiator, rust or calcium deposits inside the radiator core all cause loss of heat transfer)
Also make sure that the system is full and that the electric fan and the clutch fan are operating properly. (electric fan should come on just above normal operating temp and clutch fan should not be "freewheeling" above temp either)
Note: If you need to have the radiator flushed, do it separately from the engine. especially the inline 6 and 4 engines rust up inside and if the system is flushed with the radiator connected, the debris will pack up inside it and actually can worsen the condition.

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System flushed, coolant changed , this is when Venture started to run hot. Changed thermostat, mechanic says I need pink/red Xerex Coolant to keep it from running hot, another mechanic says Dex coolant is...


get the antifreeze that mixes with any color you should be fine also make sure you bleed the system get the air out of the cooling system there should be a petcock to bleed it with,crank let get operating temp.open petcock till steady stream runs out close pc your done.

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1 Answer

I HAVE A 1999 HYUNDAI ELANTRA !!!


What is the temp guage reading. Is the engine running at its normal temp.Make sure you purchased the correct thermostat. Is the rad full of water?The system may have air in it.The vent door may not be closing. Check these things out and post what you came up with

Dec 11, 2009 | Hyundai Motor 1999 Elantra

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