Question about 2005 Jeep Liberty

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2005 Jeep Liberty 3.7L overheating

Recently(about 15 days ago) had my 2005 Jeep Liberty 3.7 engine cooling system flushed and new Valvoline coolant added at50% rate. On Friday October 26th went on a trip of about 138 miles. Parked the Jeep, did some walking and shopping for about 3 hours. Took a ride to about 8 miles, alarm went off, notice the temperature was at the 3/4 mark, turned around and pulled over and let cool down. Got back to the hotel and let the engine completely cool down. Left the next morning and made it about 109 miles with no problems, stopped at a store on the way home for about 30 minutes, had about 28 miles to go, after about 12 miles went above the 3/4 mark, pulled over and found a hose to cool the radiator and hose near the thermostat, made the next 16 miles to get home but got to the 3/4 mark again. What is going on?

Posted by Anonymous on

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It's overheating, for sure,
is coolant levels dropping? cold checked at rad cap?
"pulled over and found a hose to cool the radiator and hose near the thermostat,"
i can not understand this statement"above"
if it overheat only parked, check fan for full ops.
if overheats moving too, wont stay cool moving fast
then:
bad rad cap
bad thermostat , they have 7 year life says STANT. (and why)
belts slipping (to water pump)
rad cores blocked (IR thermo gun it) ask
water pump impellers rust 1/2 gone?

all this assumes no coolant loss, if you have loss, tell where.,
where it leans
ground
passengers toes (foot well)
engine oil pan? milky oil
if A/T TRANS, check it for milky too.

Posted on Mar 17, 2017

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Posted on Jan 02, 2017

  • 6982 Answers

SOURCE: 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.

Posted on Apr 30, 2010

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1 Answer

Will an air pocket in the coolant system cause it to overheat or over pressurize on a 2001 Nissan Sentra ?


1. The radiator cap if working correctly it will release pressure in the system provided the cap you have is the correct pressure setting. If you are having a problem with pressure then replace the cap with a new radiator cap with the correct pressure setting. Do not use a cap with a pressure setting other than the original equipment pressure spec. So you do not go to the parts store and buy any radiator cap on the shelf that fits because they come with different pressure ratings and some of these will be totally unsuitable for your car.

2. If the pressure valve is stuck in the "old" cap the pressure release system will not work.

3. Overheating
Air pockets in the cooling system can definitely cause overheating and can retard coolant flow through the system. If you are draining the radiator to replace the coolant or replacing the radiator you need to follow the correct procedures for bleeding air out of the system for that particular engine after coolant refilling. Some engines have bleeder screws on the cooling system to assist in the air bleeding procedure and some don't.

There are various causes for overheating so don't assume it will necessarily be solved by bleeding any remaining air from the cooling system and replacing the radiator cap with one that works.

Other causes can be...........
1. Faulty cooling system thermostat. (Replace the Thermostat)
2. Faulty water pump, especially if the impellers have corroded away or have disintegrated in the case of those design genius water pumps with plastic impellers. (Replace the water pump)

3. Cooling fans not working and if so the cause needs to be tracked. Check that your fans are kicking in. If the engine is overheating the fans should be running because they will switch on when the coolant reaches a specific temp and well before the coolant gets excessively hot.

4. A partial blockage in the coolant passages inside the engine but not in the radiator if you have a new one. If the coolant is not changed at the required intervals(frequently the case with many owners) or is over diluted with water you can get a build up of debris. If products like stop leak have been used in the system this can create similar problems with partial blockages inside the engine coolant passages.

5. A compression leak into the cooling system.
If you have bled air from the system and have continuous air bubbles in the cooling system I would suspect a compression leak. In that event a basic leak down test will show if you have compression gasses leaking into the cooling system and from which cylinder(s). The spark plug is removed and compressed air is forced into the cylinder via the spark plug fitting and air bubbles will show up in the coolant of there is a leak into the cooling system.
--------------------------------
Have the problem with overheating addressed immediately. Running the engine with an overheat condition will cause expensive engine damage many times the cost of fixing the overheating issue.

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Heater only blows hot air intermittently.


Jeep Liberty heater not blowing hot air Questions & Answers ...

www.fixya.com > ... > heater not blowing hot air > Cars & Trucks > Jeep
Jeep Liberty cars & trucks heater not blowing hot air questions and answers. Ask your Jeep heater ... My 2005 Jeep Liberty will not blow heat through ... properly.

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Nov 01, 2015 | 2005 Jeep Liberty Sport

1 Answer

Why is it overheating unless I have the heater turned on full blast?


The heater acts as an additional mini radiator to cool down the coolant. Sounds like you may need a new radiator.

May 24, 2015 | 2005 Jeep Liberty Limited

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2005 jeep liberty blows cold air through the heater.


Either you are low on coolant and there is air in your heater core, or the thermostat isn't working properly, or your water pump is going out.

Dec 13, 2014 | 2005 Jeep Liberty

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2002 jeep liberty heat only works at high rpm


Sounds like low flow issue. Flush and clean system, PROPERLY! Buy a flush kit, drain system, blow compressed air through, fill with cleaner/water mix, run for 30 min with heat on, drain system, blow out with compressed air, fill with water, run for 30 min, drain, blow out with compressed air, fill with 60% coolant mix.

Nov 26, 2013 | 2002 Jeep Liberty

1 Answer

Coolant bubbling bact through resovoir.Replaced thermostat and water pump and flushed system. Still idels at 215 degrees and runs at 221. Top hose is hot and bottom hose os hot on engine side and cool on...


I doubt the radiator is plugged up. The hose should be cooler coming out of the radiator than going in (top).
If the overflow tank is bubbling it could be from the hot coolant, or you could have a head gasket leak and allowing compression - exhaust into the cooling system.

May 08, 2013 | 2005 Jeep Liberty

2 Answers

Where is the thermostate located on my 2005 jeep liberty


Thermostats almost always reside in a housing at the engine side end of the upper radiator hose. Drain coolant first, then loosen radiator hose to access thermostat housing. If you can't find the housing, consult your vehicle service manual for location.

Loosen the bolts that hold down the thermostat housing. Remove the housing to reveal the thermostat.

Note the location and orientation of thermostat relative to the engine. Remove thermostat.

Use a scraper to remove old gasket material from all mounting surfaces.

Place new gasket on housing. Use a small amount of grease or adhesive to hold it in place during reassembly.

Make sure new thermostat is oriented properly and reinstall the housing.

Reconnect all hoses. Close radiator petcock. Refill cooling system with recommended 50/50 blend of water and coolant. Run engine and heater to purge air from cooling system. Recheck the coolant level once engine is cool.
found info on web site listed
Good luck

Dec 17, 2010 | 2005 Jeep Liberty

1 Answer

How many quarts of oil do i need for my 3.7 liter v6 jeep liberty


2005 Jeep Liberty 4WD 3.7L MFI SOHC 6cyl ...

VALAC10W30
Application:
Use in temperatures above 0 degrees
Note :
Valvoline Premium Conventional 10W-30 Motor Oil


550015365
Application:
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Hope helps (remember to rate this answer).

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Jeep liberty 3.7 leter engine. Is draining and


Its the same. Coolant is coolant in any vehicle with a coolant system.

May 16, 2010 | Jeep Liberty Cars & Trucks

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2002 Jeep Liberty 3.7L cooling problem (60,000 miles) : it would overheat if driving at low speeds (30mph and under) . Repair shop did pressure tests, results were good. Fan was checked out and was told it...


There is only so much to the cooling system. Although I
should be careful what I say cause my 02 liberty might over hear me and remind me just how temperamental their cooling system is.

I would replace the thermostat and if that didn't work you may want to remove the top plate holding the radiator down to check for any debris that may have collected on the radiator vanes.
I just replaced mine 3 days ago and the part cost around $20 so it's a pretty cheap item.

As long as your not losing coolant then that's about all you can do. If you are losing coolant regardless what the pressure test shows let me know and I'll help diagnose that problem.
Hope this helps.

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