Question about Hyundai Motor 2002 Sonata

1 Answer

Replacing the thermostat on my Hyundai elantra 2002

We have no heat, the temp guage doesn't move

Posted by on

  • 1 more comment 
  • brenda_ronan Jan 18, 2009

    no gauge doesn't come up at all. not sure about the rad

  • Mike Butler
    Mike Butler May 11, 2010

    When car running for a while and you carefully touch top of rad, does it feel hot, or cool? Is the temperature gauge moving at all, as in creeping up from cold mark at all? Have you looked in rad when engine cool, to see if any coolant visible?

  • Mike Butler
    Mike Butler May 11, 2010

    If your temp gauge isn't coming up to operating temperature, and no heat, that's a good place to start. gauge doesn't move up at all? Does rad feel hot, or just warm/cool when running?



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 67 Answers

Could be low coolant

Posted on Jul 24, 2009


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 1665 Answers

SOURCE: thermostat in a 1997 hyundai elantra

See exploded view

1. Drain the coolant down to thermostat level or below. 2. Remove the coolant outlet fitting and gasket. 3. Remove the thermostat

Posted on Jun 23, 2008

  • 6674 Answers

SOURCE: 2002 caravan, heater problems

That was a common complaint a few years back, due to the fact that the heater core is a little too much higher than the engine, which requires that extra push it gets when engine RPM's increase. One thing I did do on my Caravan was remove my hoses to the heater core, and use a small external pump with hoses to circulate C.L.R. through my core for a while, then let it sit with CLR in the core overnight.Next day I circulated it through again, both ways by reversing hoses, and then re-attached hoses, bled air out of system, and notice quite an improvement in heat at idle. Once cleaned out, the heater core allowed coolant flow through it better at idle. If your stumped by explanation, take it to an automotive shop, or a Rad shop, and get a quote on flushing that core out for you. I recommend the CLR, but it might be too time consuming for you , but a flush will probably show some noticeable improvement.

Posted on Nov 23, 2008

  • 962 Answers

SOURCE: No heat in Hyundai Sonata 2002

Check for an OBII code. have it scanned for free at an autoparts store. it is not the thermostat since you have already replaced it 3 times.Check for the temperature control sensor during scanning..

Posted on Dec 27, 2008

  • 32 Answers

SOURCE: hyundai elantra 2002 over heated stopped running

The head gasket is probably bad. unplug the coil pack and remove the spark plugs and turn key to start, if its leaking coolant will shoot out of spark plug holes, seen it a lot.

Posted on May 06, 2009

SOURCE: Elantra's thermostat

dear friend:please look were the engine and gearbox joins together there is a housing were the radiator hose fits from the radiator,remove that housing and you will find the thermostat,

Posted on Sep 23, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2001chevy mailbuheater won't work,my heat Gage isn't weather, , but" I can take out two relays and it works , but then the car over heats.why? What is the problems

What relays are you removing? If you remove the radiator fan relay, the vehicle will overheat. Does the temp guage move at all/very little? IF so suspect a thermostat problem. A thermostat that is stuck open will cause little/poor heat as well as the temp guage to stay on the cold side

Nov 29, 2015 | Cars & Trucks

2 Answers

OHMS Resistance for temp gauge

The OHM's are different from manufacturers. Usually the work or don't. I just test the leads and heat up the sensor with a lighter. If the resistance changes, it is good. If it doesn't read or doesn't change, it is bad. Wires usually break right behind the plug. Check for continuity at the lead and about two inches back on the wire.

Jun 18, 2015 | Cars & Trucks

1 Answer

Engine light is on but van runs good and temperature guage does not move but its not over heating

Could be engine coolant temperature sensor. Easy fix but that will make your temp guage read wrong and can affect heat output in vehicle.

Apr 15, 2013 | 2001 Pontiac Montana

1 Answer

1998 mercury sable temp guage says hot, but no heat

water pump or thermostateis stuck or cloged

Dec 08, 2011 | 1992 Mercury Sable

1 Answer

2002 ZX2 the temp. guage

check thermostat and gauge

Jan 11, 2010 | 2002 Ford ZX2

1 Answer

2003 Ford Taurus temperature guage

replace the temp sending unit if you continue to have this problem

Jan 22, 2009 | 1996 Ford Taurus

1 Answer


thermostat is sticking

Dec 08, 2008 | 2000 Dodge Caravan

1 Answer

Over heating when idle in traffic

if ac dont work idleling it start to work when you move our fan is not coming on because when you activate the ac compressor kick in and fan should come on if it start to be cold only when you drive the force air cool the condensor ac work temp goes down HOPE IT HELP FIXYA OUR POST THANKS . PIERRE

Jul 09, 2008 | 2004 Honda Accord

Not finding what you are looking for?
Hyundai Motor 2002 Sonata Logo

1,258 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts


Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22258 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8725 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides