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My 2003 toyota camry still overheats after chaging thermostat and coolant sensor why is this happening

After driving overheats, heater takes time to warm up,

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Check the coolant flow through the radiator by feeling the radiator core after running engine switch off and feel the radiator by hand it should be hotter at top and cooler has you feel lower down i suspect it will be hot at top and cold below meaning the coolant is not circulating. normally caused by coolant pump faulty or a blocked radiator also check the cooling fan is working ok could just be the fan motor fuse has blown or the motor has failed and of course make sure the radiator has no airflow restriction through its vents. hope tis helps.

Posted on Dec 11, 2016


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2003 Toyota Camry overheated. Coolant/water full in both radiator & overflow. This is the first time this has happened. What could have caused this.

check the thermostat in the cooling system..
it regulates the water flow so when the engine needs more cooling more water is turned on via a valve in the thermostat device.

Jun 20, 2015 | 2003 Toyota Camry

2 Answers

Coolant boiling in resevoir.

It can be faulty coolant temperature sensor.Its not sensing exact coolant heat temperature so its overheating then required level.


Get the coolant pressure tested, its definitely leaking coolant. You will need to get the coolant running line.

Pressure test will help you to know from where exactly coolant/refrigerant is getting leaked.


For complete step by step troubleshooting i suggest you to go through the help links mentioned below :----

Click the link below :-----

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These details will help.


Nov 28, 2012 | 1996 Lexus GS 300

2 Answers

Where is the power steering temperature sensor on 1993 Toyota Camry v6

On some Camrys the radiator fan is run by hydraulic pressure from the power steering pump. I think the sensor you mention is the engine coolant temperature sensor, which is in the circuit which operates the fan when the engine becomes hot. If this fails the engine will overheat, yes. The fan does not cool the hydraulic fluid from the pump.

If your power steering fluid gets low the same thing can happen, but you would notice immediately as the steering would become intermittently harder.

Jan 02, 2012 | 1993 Toyota Camry V6

1 Answer

I have a P1028 error code on my 2003 Camry, what does this mean?

Hello good fixya answer seeker

That code basically means the cars coolant temp is under what the thermostat is supposed to keep it at. There are a few things that can cause this issue i shall list them below for you.

1. low coolant level
2. bad thermostat
3. bad coolant temp sensor (sits in the side of the block most of the time)

All of the above are easy to change and cheap first off check the coolant level when car is cold only if that's good change thermostat and gasket cheap and easy if that don't correct the issue change the coolant temp sensor this tells fan when to run and reports temps to Gage.

Please leave 4 thumbs helps me help all of you thanks

May 21, 2011 | 2003 Toyota Camry

1 Answer

Our 2000 Camry 4 cylinder just overheated, all fluids seem to be fine what else could it be?

Could be a bad thermostat if it stays closed it will overheat quickly.A bad cooling fan will overheat the car at idle but not while driving.A bad radiator act the same as the thermostat may be better at higher speeds.A water pump will usually make noise.Bug parts or debris clogging the radiator will be self evident.Air in the cooling system will usually make the overheat come and go. A bad coolant sensor can tell you the car has overheated when it actually has not. Just some things to look at.

Oct 16, 2010 | 2000 Toyota Camry

1 Answer

Error P0125 and 1135 on obd2 reader

125 insufficient coolant temp for closed loop 1135 sensor heater circuit response bank 1 sensor 1--both can be caused by same problem code can go off for insufficient warm up -low coolant level-thermostat leaking/stuck open or faulty sensor reset code and see if problem returns code sometimes known to go off if vehicle didnt warm up before being turned off short distance drive

Oct 21, 2009 | 1999 Toyota Camry

1 Answer

2003 Toyota Camry XLE Water sounds in engine compartment

if your car is having no problems and no lights are coming on on the dash this is normal just your thermostat opening up and engine coolant going in and out of heater core

Oct 19, 2009 | 2003 Toyota Camry

2 Answers

1995 Toyota Camry 4 cylinder runs hot


Firstly, ensure you have the required 'mixture' of coolant/water (must have required coolant).

Second, I would recommend you re-test all the cooling system sensors again (make sure they're within specifications), in case a new one is faulty.

Third, ensure the new thermostat was of the correct temp setting (they all differ), so that it opens at the required time. Most cooling systems operate within 90 - 100degC.

Fourth, make sure the radiator (and associated hoses) aren't blocked.

If your temp gauge is reading higher than normal, but NOT in the danger zone...then this can be considered normal (especially if you've replaced with new components) and nothing to be concerned about.

However, if the temp gauge IS in the danger zone....then this suggests the coolant is not flowing through the cooling system properly.

If all above components test ok, then it's possible your water pump may not be pumping enough volume.


Aug 16, 2009 | 1995 Toyota Camry

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