Question about 2004 Jeep Liberty

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While driving the temperature guage flucuates and the heat in the vehicle goes hot to cold intermitantly. I am thinking a sticky thermostat? Do you think this is the problem? Is this easy to replace?

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NEED TO CHECK COOLANT IN RADIATOR...NOT JUST OPEN AND LOOK BUT NEED TO BURP SYSTEM SOUNDS LIKE YOU HAVE A AIR BLOCK IN SYSTEM....WITH CAP OFF LET CAR IDLE AND MONITOR THE COOLANT LEVEL...IT MIGHT TAKE AWHILE BUT YOU WILL SEE AIR BURPS...AFTER 20 MINUTES OR SO HAVE SOMEONE REV UP THE ENGINE TO ABOUT 2,000 RPM'S WHILE HOLDING AT 2000 RPM'S YOU TOP OFF THE COOLANT IN RADIATOR. THE FULLY INSTALL CAP..NOW TEST DRIVE

Posted on Oct 06, 2009

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2 Answers

Thermostat or water pump?


Sounds like a thermostat is being sticky. A water pump issue should cause the vehicle to over heat quickly while driving if it is not pumping.

May 09, 2015 | 2004 Suzuki Forenza

1 Answer

My temperature guage stays in the middle, is this ok?


Yes, the temperature gauge should normally stop in the middle, between the cold and hot points on the gauge. When the engine is cold the thermostat will be closed and will keep recirculating the coolant in the engine block until it warms up sufficiently. Then the temperature of the warm coolant will cause the thermostat to open the channel to the radiator to get rid of excess heat, which should stop the coolant from over heating. So the effect of the thermostat keeps the coolant at a fairly stable temperature. When the coolant runs low, it can't transfer enough heat to the radiator and the coolant and engine then over heats. Watch for radiator leaks under your car after you have been driving it. If the coolant goes low again fairly quickly you could have a leak in a hose or the radiator itself.

Apr 19, 2013 | 2003 Mazda Protege

1 Answer

Blows cold air when heat is on


If temp. Gauge goes way up check the intake gasket may be blown out and leaking. Take a flash light and shine it under throttle body and look for coolant. Check radiator to make sure it is full only check radiator when engine is cold DON'T OPEN WHEN HOT can cause burns.

Feb 13, 2013 | 2001 Chevrolet Blazer

1 Answer

When really cold no heat indication


It sounds like your thermostat is probably stuck open, replacing it should solve your problem.

Jan 01, 2013 | 2000 Dodge Caravan

1 Answer

Temperature problem


Did anyone actually try a real thermometer to see if the engine was truly hot or just the gauge is being silly?

Oct 02, 2012 | Cars & Trucks

1 Answer

Just replaced my thermostat on 2004 Impala. Temperature guage goes from cold to hot then goes back down. Heat seems to work when the temperature guage is lower but as soon as it goes up the heat turns...


i going to assume you have the 3.4L or 3.8 L motor
these motors are notorious for trapping air in coolant system
which sounds like what your problem is
not a problem tho they have bleeder screw built into them
there should be one or two bleeders (depending on model year and motor size)
i think yours should have two
one should be on top of thermostat housing
other one right above water pump on bypass tube
open one bleeder at time with motor running until u see just water and no air
repeat with other bleeder
continue to work back and forth between the two bleeders until thermostat opens
then work back and forth a couple times after thermostat opens
keep checking radiator add coolant as needed

Dec 28, 2010 | 2004 Chevrolet Impala

1 Answer

Temp gauge cold and then heat turns not so hot


make sure the antifreeze is full. if so, replace thermostat and refill

Nov 20, 2008 | 1996 Honda Accord

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