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Showing posts with label low coolant. Show all posts
Showing posts with label low coolant. Show all posts

Sunday, September 29, 2013

2005 Chrysler 300 overheats

Chrysler Overheats

Unfortunately, it sounds like you may have a blown head gasket and you’ll likely need to take it in to get it repaired or at least do the test yourself.

About your vehicle.

The first thing that you want to do is check the cooling system for any exhaust gases. There is a tester for that, that you can gt from Autozone for about $20. It comes with instructions, but there is a blue fluid that is used in it, if the fluid turns yellow, that is exhaust gases.

OEM/Block Tester AUTOZONE
Part Number:
27145

Suppose If you get any exhaust gases in the cooling system, that will cause more pressure than desired and will allow the engine to burn coolant and/or heat the coolant up too high. Most times not filling the crankcase with coolant either.
If there are, then there would be an internal engine problem, like a head gasket or head.
Of course, you will want to make sure that the system is full, the coolant is circulating, and the cooling fan(s) are working as well as the pressure cap holding pressure.


Another issue can be water pump worn out or thermostat issue.But if its already replaced and new,Air in the cooling system. Needs to be burped by leaving cap off so it doesn't build up pressure, drive slowly around your neighborhood and take a supply of coolant w/you. Stop periodically and add coolant. When it finally stops accepting coolant fill the reservoir to the line, again drive slowly and recheck coolant level.

Also, is it possible you reversed the thermostat so it is blocking coolant rather than opening and letting coolant circulate?

You could have air in the system. There is a bleeder right near the thermostat housing. You may want to open that bleeder when it is cold, start it and try to get any residual air out of the system by working with that bleeder. The bubbling you see may just be due to the coolant boiling. The lower hose not getting warm at all indicates the thermostat is not opening and there is no circulation.

 Some of the symptoms suggest a leaking head gasket. Look for bubbles in the overflow reservoir. If the coolant is cold, you know it's not overheating.

Do not remove the thermostat. In some cases, that will cause overheating because the coolant won't stay in the radiator long enough to cool. More commonly, the engine won't reach operating temperature. Parts won't fit right leading to rapid engine wear, and the fuel system will not go into "closed loop" and fuel mileage will go way down.

The pressure cap simply allows system temperature to go above 212 degrees without causing the water in the coolant to boil. It doesn't CAUSE the temperature to rise.


If Overheating is not repaired on time it can cause many other issue.Also vehicle no start problem can occur.

Engine overheating can cause severe internal damage. Did the engine turn over and not fire, or not turn over at all, as in the engine is locked.

There are a couple of possibilities, the most likely is that your overheating caused damage to the cylinder walls which is now causing low compression, resulting in a no start condition. It is also possible that some other component failed at the same time as the overheating, and that component is causing the no start, i.e., a bad crank sensor or something of that nature. If you let the engine overheat to the point that it began shutting off, then it is extremely likely that you have internal engine damage.

ALSO OVERHEATING CAN BE DUE TO fan not running as the rotating fan assembly is now severely out of balance. This in turn would probably cause the fan motor/bearings to fail, or blow a fuse. If they are damaged/blown then naturally your engine will start to overheat, unless you get air moving over the radiator element by driving it at moderate speed.

Friday, October 5, 2012

Faulty coolant level sensor

Faulty coolant level sensor on Pontiac Grand Prix 

Problems Noticed Will Be:----

  • The on dash coolant light blinks ON & Off.


You Can Try:---

Remove the coolant sensor and clean it with electronic component cleaner,then refit the sensor and see.
In most cases this helps.

But if that is not helping then,may be its faulty coolant level sensor.


There is a testing procedure to Test the Sensor:----

These procedure helps to confirm if sensor is faulty or not.

  • First of all you have to remove the low coolant level sensor.
  • Now with the ignition key on but the the engine off and the coolant level sensor disconnected from the vehicle wiring harness, observe the low coolant light:

               A)  Light is on - Chassis wiring or instrument cluster concern. Follow the appropriate diagnostic information in SI.
               B)  Light is out - Proceed to Next Step of Testing Procedure.

See the diagram shown below for more help:------

low coolant level sensor



TESTING PROCEDURE:----


  • Now With the key off, you have to connect the coolant level sensor into the vehicle's wiring harness. 
  • The connection should be as follows.The above diagram will be helpful.As per the diagram connect a ground wire (1) to the battery negative terminal. Using a sharp probe (3) attached to the ground wire, ground the coolant sensor probe (2) as shown in the illustration. 
  • The wire contact should not be loose.Make sure a good contact is made. Once this wiring connections are done.Now with the key on and the engine off, observe the low coolant light for at least 15 seconds.

          A) If the Light is still on - Replace the low coolant sensor and re-check system operation.
          B) But if the Light is out - Proceed to Next Step.


  • Try cleaning the sensor.For that you can use a small wire brush or emery cloth, polish the low coolant level sensor probe to remove any film or oxidation. 
  • A indication of good sensor is that the probe should be a bright brass color when finished. Use Brake Parts Cleaner to flush removed deposits from the low coolant sensor probe. Re-install the low coolant sensor into the vehicle and proceed to Next Step.

  • Now before re-installing the same old coolant sensor.Without forget clean the coolant system of the car. And for that you have to flush the cooling system and install new DEX-COOL(R) mixture as outlined in the SI. 
  • Without forget check the vehicle's warranty history to determine if any engine gasket had recently been changed. If there has not been a recent gasket replacement, locate and repair the source of the engine oil contamination.
  • In most of such cases,the low coolant level light comes on due to engine oil getting collected and contaminated on vehicles sensors and other parts.


In case if the coolant level sensor is checked to be faulty,then please go for branded part,instead of cheap non branded parts.
The non-branded aftermarket parts are not bad parts,but there performance is very low/less as compared to genuine/original branded parts.

These details will help.
Thanks.


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Saturday, January 7, 2012

Temperature gauge keeps fluctuating up and down close to red?

This problem is noticed on many car models.In this case the problem is noticed on 1997 Mazda 626.
First of all,turn the engine off and see if you notice any coolant leak.If yes, then that is the cause of problem.The coolant level is getting low and causing the temp gauge to fluctuate low to high in red zone.


But if there is no coolant leak,then other possibility can be faulty thermostat.
That could be the thermostat, you may want to take it out and check it in hot water to see if it opens, however,

With any engine that has been run hot, over heats or has been run hot, the first thing to is check the integrity of the internal engine, (ie. Head gasket(s) and head(s) and block) . Then consider the radiator being restricted somewhat.

You can check for cool spots in the radiator’s core that would indicate a clog.
The first thing that you want to do is check the cooling system for any exhaust gases. There is a tester for that, that you can get from Autozone service center for about $20. It comes with instructions, but there is a blue fluid that is used in it, if the fluid turns yellow, that is exhaust gases.

Block tester available as:
OEM/Block Tester AUTO ZONE

Part Number:
27145

If there are any exhaust gases in the cooling system, that will cause more pressure than desired and will allow the engine to burn coolant and/or heat the coolant up too high. Most times not filling the crankcase with coolant either.

If there are, then there would be an internal engine problem, like a head gasket or head.

Of course, you will want to make sure that the system is full, the coolant is circulating, and the cooling fan(s) are working as well as the pressure cap holding pressure.

This details will help.
Thanks.

-----------
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Saturday, November 12, 2011

Heater just blows cold air on Lincoln LS united states model?

It can be issue with faulty thermostat,thermostat stops working and causes such problem,Its not a costly part,you can try replacing thermostat.But if you have already tried replacing thermostat and still the problem is same,then other possibility can be plugged heater core.The core get clogged and causes such problems.Get the heater core flushed and see the results,.If still the problem is same,then the other possibility for this problem is Duel coolant heater control valve.This Valve is located on the passenger side , front of the engine compartment.Replacing this valve will help.
See the diagram below that shows the location of this valve.


graphic

Always buy branded auto parts,local non branded cheap auto parts don't give exact required results,they get overheated and burned out or don't last long.The cost for branded original auto parts are bit more,but you get required results and they last long.

This details will help.
Thanks.

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For car AC related and Heater related solutions. You can refer the options mentioned below:---

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How to Recharge Car's Air Conditioner

http://repairhelpcenter.blogspot.com/2011/10/how-to-recharge-cars-air-conditioner.html

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