Question about 2008 Dodge Nitro

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No heat I believe theres a trapped air pocket. what is the correct procedure for bleeding air out of cooling system on this vehicle?

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If you have no heat its more then likely that your heater core is pluged so u will have to flsuh your cooling system.

Posted on Jan 03, 2014

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Posted on Jan 02, 2017

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lebones337
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SOURCE: 87 dakota over heating

take it to a lube shop, and they have a vacum replacment system that will **** all the fluid and air out. put a vacum on the system then replace it with new coolant with out any air pockets. this should do the trick.

Posted on Feb 12, 2009

nealmqjr
  • 1 Answer

SOURCE: need to bleed air out of 2001 dodge ram 5.9 cooling system

crack a line to heater core slowly

Posted on Dec 01, 2012

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1 Answer

Heater in 1991 doesn't heat up only cold air comes out def or vents


If you had some heat before you changed the thermostat, you probably still have air trapped in your cooling system, specifically in the heater core. You state you have a 1991 vehicle, but no make or model. Google "bleeding cooling system 1991 (make) (model)" and you should get guidance on specifics for your vehicle.

Dec 06, 2016 | Cars & Trucks

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.
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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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Dec 29, 2015 | Nissan Cars & Trucks

1 Answer

Overheats could this be from to much coolent rushed the radiator and refilled just Wonder if added to much coolent


If you have emptied the cooling system and refilled it, you need to bleed air out of the system using the correct procedure for your engine.
If you did not bleed air out after refilling, you will have air trapped in the cooling system and it will not function properly. You will most likely get an overheating condition.

Dec 19, 2015 | 2003 Ford Windstar

1 Answer

Heater blows out cold when at stand still


Sound like u have an air pocket in the cooling system. Make sure antifreeze level is correct. I also believe that model has an air bleed on engine to remove any air trapped in engine cooling system so might want to try to bleed the system as well. Hope this help

Nov 13, 2013 | 2006 Chevrolet Impala

1 Answer

I replaced my water pump for my 2006 buick lucerne and now theres no heat


Hope you didn't break a nail.

There is a air pocket in the heater core, you just didn't burp it right.

Try this

  1. Open the hood of your car. Secure the hood with the safety handle. If you have a newer car, you should have a bleeder valve on the front of your radiator. Check in your owner's manual for the location of this valve. If you do start your car, open the valve with wrench and let your car heat up. The excess air will bleed out of your cooling system. Keep your car on long enough to give the (trapped air) time to bleed out of your system.
  2. Let your car cool down. Once the car is cool, take off the radiator cap. Did the level of the radiator fluid go down? If it did, it means you bled the air out of your cooling system. Replace the radiator fluid, turn on the car, and let it run. Replace radiator fluid as needed.
  3. Step 3 (above) is the way you will remove air from your cooling system if you do not have a bleeder valve on your radiator. You will leave the cap off the radiator. You will run your car until it heats up. As the air dissipates, the radiator fluid level will go down. You will fill up your radiator fluid to the correct level. Be careful because the heated radiator fluid will be hot. Always wear leather gloves and safety goggles when working on your radiator.
  4. Once the air dissipates and you fill the fluid, shut off the car. Let the car cool down. Once the car is cool, put the radiator cap back on the radiator. You may have to put more radiator fluid in the radiator. The level may fall as the car cools down. Now it is safe to drive your car. You have removed the trapped air from your cooling system.
Tips:
Always wear gloves and safety goggles when working on your radiator.
Radiator fluid gets very hot when heated.
Check radiator fluid periodically.

Apr 14, 2013 | 2006 Buick Lucerne

1 Answer

I have a 2002 Daewoo Nubira. We have recently had both the thermostat and the heater core replaced. We still have no heat (very little)! What else could be the problem?


More than likely there is an air pocket in the cooling/heating system. If there is no vent hole valve that is in the high point of the cooling system then what you would want to do is remove the radiator cap (when cool) to avoid getting burned, park the vehicle slightly uphill and start the vehicle and let it run til the engine gets hot enough to open the thermostat and burp out the trapped air. Many of todays vehicles don't ever really get hot enough to burp out system or the pressure in the system is too high to allow the trapped air to escape, that is why you want to remove the radiator cap. Hope this helps. If it does please give me thumbs up. Good luck.

Jan 20, 2011 | 2002 Daewoo Nubira

2 Answers

1995 BMW 525I over heating issue. I repaired head


Hi, Sounds like you have tried about everything. Ok the aux. coolant switch is for the electric pump for the heater core will not cause an over heating condition just a longer warm up of the heater core. Has the cooling system been bleed properly if there is a trapped air pocket it will not let coolant circulate. Was the new thermostat installed correctly? They have a vent that needs to be towards the top or they trap air on the back side and cant take an accurate reading to open and close. Other areas to look at would be proper operation of the fan clutch, if they fail they can cause the fan to not lock up properly and supply enough air movement through the radiator. The aux. electric fans and their temp switches do you hear them coming on are they coming on at the right temp.

Aug 26, 2010 | 1995 BMW 5 Series

1 Answer

I have a 93 Toyota 4 runner that I had to replace the head gaskets on do to the recall work over torqeing the headbolts. After replacing the gaskets I can't run it with the thermastat in with out it over...


1. I would in the first place try to isolate this problem to a faulty thermostat and /or wrong fitment.

2. Get a new thermostat that is the correct spec for the vehicle. If you don't know check with the dealer.

3. Make sure you are positioning the thermo correctly in its seat and when connecting everything back up there is nothing impeding coolant flow like a poorly fitted gasket.

4. Importantly make sure that when connecting the cooling system back up and after topping it up with the correct coolant you purge the cooling system of air. If you do not do this the vehicle will overheat and potential engine damage will result.
Many vehicles have bleeder screws in place to bleed out air from the cooling system. Consult the workshop manual for the vehicle for advice on the correct procedure for bleeding air from your cooling system.

Dec 02, 2009 | 1993 Toyota 4Runner

1 Answer

There is a gurgle sound when I accelerate


A sound like that (without being able to hear it myself) would lead me to believe your antifreeze/coolant is low and you are hearing the air pockets pass through your heater core. Make sure your coolant is full and there is no air trapped in the coolant system which includes your heater. The overflow bottle should be filled to the proper level and free from any leaks. some vehicles require a special procedure for filling and bleeding the air from the engine coolant system so be sure to follow any procedure outlined for your vehicle.

Nov 06, 2009 | 2000 Nissan Maxima

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