Question about 2003 Chevrolet Malibu

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The red light in the car is coming on. It looks like a radiator cap. Can you tell me if I need to replace the radiator cap?

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  • fortev72 Aug 28, 2010

    Yes. The car is overheating, but, it cools down after I ride it for a while. The fan kicks on. I do put water in it,but some how the water evaporates but i do not know where to. It does not leak on the ground.


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Is your car over heating. Have you checked to see if you need water. I just had a similar problem. I had water but my car was over heating. I figured out it was the thermostat which I bought for around $10.

Posted on Aug 27, 2010

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The radiator coolant warning light comes on on my holden Astra 1.8 litre manual hatch(2000 model);however there is plenty of coolant and the engine thermostat shows normal temperature?

Hi,its always better to have these thing working as they are ment to,if you look at the exspantion tank where you fill it up with coolent you will see a switch with wires comeing from it ,it will ether be in the lid or on thtank some where,take the wires off and join them together then start the car if the light has gone out you will need to replace the sensor,all the best.

Jul 31, 2016 | Holden Astra Cars & Trucks

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After getting my car repaired by a good samaritan, who helped me replace a leaking radiator hose and after the replacing a defective radiator cap, the check engine light started blinking, as well as the...

I do not know the answer to your codes. What I do know is that if you replaced a Radiator hose and Cap and did not fill the radiator properly afterwards that an air pocket could have developed in your System.

I would suggest that you leave the car sit over night, then in the morning before you start the car check the Radiator to see if it is full of fluid. Do this by opening the Radiator Cap and have a look inside. Fill the Radiator if it needs to be filled at this time.

Now put the radiator cap on but put it on loosely. Only tighten it enough that it cacthes but will not come off. At this point you can start the car and let it warm up. Let it run until the radiator hoses are good and hot. Top and bottom or until you notice that the level of coolant in the Radiator has dropped. Check that by removing the cap when the hoses are starting to get hot. Be sure that you do not open a radiator cap that is on tight. If you do then the presure buildup will cause the hot fluid to come spraying out and burn you. As I said earlier the cap must be put on loosely. This allows air to escape and no presure to build up.

When the radiator fluid level drops then any air that is in the system should have circulated out of it. So now fill the radiator again, slowly as not to cause a spray back. Once the radiator is full again then repalce the cap. Put it on tightly this time and be sure that your over flow tank is fill to the proper leval.

Repeat if you feel that you still have an air pocket in the system.

If this was not done when you replaced the hose and cap then you do have an air pocket. Hopefully this proccedure will remove your air pocket and stop your warning lights from blinking.

Good luck

Jun 22, 2011 | Honda Odyssey Cars & Trucks

1 Answer

Low radiator fluid light came on, engine started to smell like burnt wire/oil? Turned off let it cool and than added fluid. Heater now not blowing out hot air. I am plannig on adding more fluid b/c light...

will try to help.let car cool all the way off 1st take radiator cap off, top off w fluid, start car w/ radiator cap off. let it get to operating temperature w/motor running, keep addind fluid, look under car for leaks the whole time please!! if at any time-- you see fluid coming out beyond what you may spill or overfill,,shut the car off!! you may only be low on radiator coolant.with the radiator cap off while filling, you should see the fluid moving[circulating] inside the radiator, bubbles moving downward,,ok spewing upwards out of radiator NO if this repairs good, replace cap and drive 10miles regular speed. no hot,,good,,if hot let cool copletely,check cooling fan relays under hood,black box, look for fan relays, when key is moved back from on to off,,relayshould tick,put your finger on it while someone turns key off to on,WILL NOT SHOCK YOU!! just a very small vibration to fingertip. if this good, with engine running, do engine fan come on to cool, look between radiator and engine,at the fans to insure it;s coming on. you really should be able to hear it, but i prefer to see it visually. AS ALWAYS,IF YOU NEED FURTHER ASSISTANCE OR HAVE MORE QUESTIONS,PLEASE REPOST YOUR QUESTION, AND AN EXPERT WILL HELP WITH PHONE OR ONLINE ASSISTANCE.

Nov 24, 2010 | 2002 BMW 3 Series

2 Answers


The coolant light is warning low coolant level. If left unchecked then overheating will follow. Find out where the coolant is leaking from. Look around the engine bay for a brown stain in a arc perpendicular to the water pump pulley. Water pumps as they age often leak through the water seal at the centre and as the engine runs this water spins off the pulley around the engine bay. Check all pipe unions and the radiator core for leaks. Then check the interior heater unit supply and return pipes and unions - check the foot well carpets fro tell tale dampness. Check the filler cap rubber seal is good - enough to hold the coolant pressure. Check the inside of the oil filler cap for white mayonnaise build up - if there is it could be head gasket leak. Lastly check the exhaust for white gases (steam) and remove the plugs one at a time to check them. If water leaks into a cylinder(s) the plug(s) will look clean

May 21, 2010 | 1995 Buick Regal

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A light has come on my dashboard. I cannot find my manual. It looks like a pitcher filling something. How can I look at a maNUAL.

Probably means you need to add coolant. Look for the plastic reservoir connected to the radiator by a hose. Never open the radiator cap unless the engine is cold. If this isn't the problem stop by your local auto parts store and they will read the codes and tell you why it is on and reset it for you for free.

Nov 15, 2009 | 2001 Ford Taurus

3 Answers

Red light flashing that looks like music note in water... HELP

check your anitfreeze level. Is your heat guage high or close to the red line? Also have you checked your oil? To check antifreeze, remove cab when car is COLD make sure the coolant level is up to the top of the radiator. To check oil find the oil dipstick. (probably yellow) wipe clean once, reinstert fully, pull out again. check to make sure it is surely above the ADD mark. If it is at this mark, add 1 quart of oil.
If antifreeze is low, buy a jug of 50/50 antifreeze and get a funel and pour until radiator is full. Slowly pully it in little bits at a time, than slowly squueze and release raidator hose to burb the air bubbles out of the radiator hose.

If your temp guage is going up, than your came may need antifreeze. If it has fluid, than you may need to have thermostat replaced.

Jun 02, 2009 | 1999 Volkswagen Beetle

1 Answer

There is a light in the dash that is always on it is red

Low engine Coolant Level warning lamp.Check coolant resevoir when cold.Look for cooolant leaks!! Common for coolant caps to not hold pressure.Caps are cheap.Radiators go bad at tanks also look for cracks near or under upper hose at radiator.hope this helps

May 26, 2009 | 2000 Saturn SL

3 Answers

Check gauges light comes on

check the colling fan to see if it kicks on at normal opperating temp 210'
it culd be air in the cooling system
if there is no leakes it could be a leaking haed gaskit

Sep 08, 2008 | Jeep Cherokee Cars & Trucks

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