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I have an 02 jeep liberty thats maxing out on the temp gauge, ive replaced the radiator and hheater core the oil is clean but someone before mixed two types of antifreeze and it gelled what is my next likely step thermostat water pump or the head

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Check your coolant.

Posted on Dec 30, 2012

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Posted on Jan 02, 2017

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SOURCE: 1992 jeep wrangler 2.5 liter engine still overheating

Did you put a new cap on the radiator? Small as it seems, if it does not provide an adequate seal on the radiator, than the system does not get pressurized, thus keeping the boiling point around 212 deg. your engine gets way hotter than than normally. When sealed right, the pressurized system raises the boiling point to close to 300. thats how is works. If thats not it,(assuming it is the last thing replaced) than you might have either a cracked head/ head gasket/ valve guides, cooling ports, basic large dollar items. Lets hope for your sake the problem is still in the cooling system, before you look at the motor. If you take out the sparkplugs, you'll be able to tell real quick, rusty, burnt whitish-orange looking condition. Good luck

Posted on Aug 15, 2008

leetamara
  • 702 Answers

SOURCE: 94 jeep wrangler overheating

Have the cooling system pressure tested. If it holds pressure, that's a good thing. If it doesn't hold pressure, you may have a leaking head gasket. What may be happening is the crack in the head gasket could be blowing hot air into the cooling system causing it to overheat.

Posted on Sep 27, 2008

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SOURCE: car runs hot

CHECK YOUR RELAY IN YOUR FUSE BOX UNDER THE HOOD ON THE DRIVERS SIDE INNER FENDER. THE A/C AND THE HEATER RELAY ARE SAME. CHECK AND SEE IF THE A/C REALY WORKS BY TURNING ON YOUR A/C SWITCH. THE ELECTRIC FAN SHOULD START RIGHT AWAY. OTHERWISE YOU HAVE TO WAIT TILL THE ENGINE ACHEIVES OPERATING TEMP TO KICK THE FAN ON. IF ONE DON'T WORK AND OTHER OTHER DOES... SWITCH THE RELAY AND SEE IF IT WORKS. BEEN THERE AND DONE THAT. $9.00 FOR A NEW RELAY AT CHECKER AUTO PARTS.

Posted on Feb 14, 2009

66 chrgr
  • 1011 Answers

SOURCE: OIL IN ANTIFREEZE

if this is dexcool antifreeze and it has never been flushed after time it will gum up and turn brown if this is the case have your coolant system power flushed I HAVE BEEN DOING THIS WORK FOR MANY YEARS AND HAVE YET TO SEE A 3.8 MOTOR HAVE A CRACKED BLOCK!

Posted on Mar 06, 2009

  • 290 Answers

SOURCE: 99 jeep cherokee problem w/ heat

It could be a flap but more likely you have a air trapped in the heater core or the hoses connecting the heater core when refilled the system after your repair.
Loosen the supply hose that go to the heater core at the highest point and run engine until coolant comes out.

Posted on Jan 05, 2010

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2 Answers

I have a 02 Grand caravan that has new radiator, termostat, one new fan. the temp gauge goes up to max hot the drops right back down in seconds. what could be the problem?


it could be you have an air lock in the cooling system
remove the rad cap from the rad, start the engine and let it run until the coolant drops (add to fill it back up) or until the coolant boils out of the rad spout.

maybe pull the heat sensor. -replace it OR clean it off, reinstall it.

Mar 12, 2015 | 2002 Dodge Grand Caravan

2 Answers

I have a jeep liberty 2002 changed radiator heater core back flushed at jeep dealer heater works for a while really hot and sometime itj just starts blowing cold air suggestion jeep dealer said sceen keep...


What does your radiator fill tank look like? When is the last time you changed radiator fluid? If you have an oil leak into the radiator, combination produces a jelly like substance that may be what blocks the screen. You may need a radiator flush and refill.

Feb 13, 2015 | Jeep Cars & Trucks

1 Answer

2006 jeep liberty run hot ,but when i turn the A/C on it wan,t run hot


runs hot, so how much, use a meter?
full flush the coolant system yet.
test the Radiator tube for clogging, using any cheap, IR pyro temp gun? made, (ask how)
clean the leaves, and bugs out to all cores in front of car.
A/C condenser and RAD yet?
are fans working at RAD?

Oct 03, 2014 | 2006 Jeep Liberty

1 Answer

Leaking coolant fluid a good amount almost a stream when I shout the jeep off near the fire wall on my jeep liberty. Temp gauge is reading fine


You have a bad heater core it needs to be replaced soon, your system cannot maintain pressure and you will have massive issues and failures due to this and you will have to replace alot more than just your heater core. I hope this helps you

Dec 14, 2013 | 2002 Jeep Liberty

1 Answer

What should temp gauge read as normal


195 should be the max 170 is ideal if you have a gauge that reads normal it should run between the r and m closer to the m side

Apr 06, 2013 | 2003 Jeep Liberty

1 Answer

Heater on 03 jeep liberty blows hot air only when motor is revved and cold air at traffic lights


oneor two things low coolant in radiator or poor flow through heater core . if motor is at normal running temp. and coolant full , then heater core needs flushed, check coolant in radiator first....

Dec 05, 2011 | 2003 Jeep Liberty

1 Answer

I’ve have problems with getting sufficient heat from my 2002 Jeep Liberty - Took the 2002 Jeep to dealership - First they wanted to replace the thermostat [$200], I explained it was replaced in November...


Here's the way I usually approach problems such as this. First I'll hook up a scan tool that allows me to see the actual engine coolant temperature is [not just what the gauge says] as the vehicle is being driven down the road at highway speeds. The coolant should be near the 192 - 200 degree range to get the best heat out of the heater. If the coolant temp is below that level then the amount of heat you'll get will drop according. IF the coolant is reaching full temp but the air coming from the heater isn't very warm then you could have a restricted heater core or a temp control door in the ductwork that isn't working properly and is allowing cold air to sneak past the heater core. Usually if you have a water pump impeller problem you'll also have an overheating problem as the pump often isn't able to move enough water through the radiator to keep the engine cool. Hope this gives you a starting point and good luck!

Dec 22, 2010 | 2002 Jeep Liberty

1 Answer

2003 3.7L Liberty Jeep overheated - no leaks in


thermostats are fairly reliable considering how cheap and simple they are.
They can and do sometimes fail (nothing is perfect). the cause is pretty much that they just stop working, usually because the internal movable part jams.
I believe a company called robertshaw makes what they claim is a "lifetime" thermostat...I doubt if it actually will last that long but may be a slightly better unit to use as a replacement.
I would use the opportunity to check the fan(s) to make sure they are working properly, that the radiator is not externally or internally obstructed and to replace your coolant.
if the overheat condition persists, check (or have checked) to make sure that there are no hydrocarbons in the radiator (indicates a cylinder head gasket leak) If your gasket has failed, it needs immediate service or it will cause serious secondary damage to the engine.

Apr 30, 2010 | 2002 Jeep Liberty

1 Answer

My 02 jeep liberty oil pressure light comes on at 2000rpms i have already replaced oil pressure switch twice and connector once


I recommend that you temporarily install (or make it permanent if you wish) a mechanical pressure gauge. this will allow you to read the actual oil pressure, eliminating the possibility of a bad gauge or sender (yours is electro-mechanical.) If actual pressure still drops at that rpm I'd remove the pan and check the pump screen for obstructions.

Nov 07, 2009 | 2002 Jeep Liberty

1 Answer

98 cherokee had gunky cooling system, got it flushed and temp gauge was reading low afterwards. diagnostic computer said the cooling system circuit had high input so i replaced one of the temp sensors. now...


STOP DRIVING.

Go to a shop and ask for a cooling system pressure test.

After they pump up the coolant system,they will point out is there any INTERNAL or EXTERNAL leak(s).


Internal leak is the first sign of blowing head gasket. (NOT GOOD)

External leak can just a small hose.


Start monitor cooling loss.

Start monitor the oil level

Change the thermostat and gasket.

The temp sensor is cheap. Change it at the same time.

Use 60/40 coolant mix is you has high odometer reading like 160,000+ miles


DO NOT ALLOW the coolant and oil cross mix.

As soon as it mix,you are ready for a majot head gasket repair.


Good luck.

Jul 15, 2009 | 1999 Jeep Grand Cherokee

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