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Warning light keeps on coming on saying that coolant level is low , going throu bottles of the stuff had it checked on a journey down south in aug by a guy in green flag as the engine was also over heatin he thought maybe the cap hadn't been screwed back on properly when we put the coolant in?? We left the car over night and its been fine since until this wk warning light keeps comin on I keep opponents it up to no avail only difference this time is the engine is not over heatin it keeps at a steady 90 ? Help please

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Coolant warning lights keeps coming on

Audi TT's only take G12 coolant (vw/audi propriatary formula) you can add some distilled water to the water level to prevent the light from coming on, but as you explained you keep adding fluid (of some kind) and the warning like returns. that's a little evident that you have a leak somewhere.

put some paper towels or something under your car when you park it for the evening. when you come out the next day, pull the car away from the spot and look at the paper towels. if they have orange drops, that's your G12 coolant leaking. like McMuff460 said, check all the clamps/hoses for signs of the leak. if you don't find anything i reccomend taking it to a shop for them to check out. Your water pump might be on it's way out.

Don't ever put any other fluid other than G12 coolant and distilled water into your car's coolant system. It will cause some major issues with seals, leaks, and cooling performance.

Posted on Nov 06, 2008

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SOURCE: check coolant level warning light keeps coming on

Are you sure that the thermostat is opening? If you let the car run to operating temp, does it get hotter and then suddenly cool down? If so, the thermostat is sticking and needs to be replaced. Put your hand on the radiator hose while the engine is warm. Use a shop towel that is wrapped in a way that it won't get caught in the fan to grip the hose. If the engine is at operating temp and you can't squeeze the hose much that is another sign that the thermostat is sticking. If the hose compresses, the coolant is moving through the thermostat.

Posted on Jan 25, 2009

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SOURCE: My service traction system warning light is on.

Most traction systems have sensors at each wheel. These detect wheel spin (can be a loose connection, broken wire, dirty sensor) The ABS won't work for the same reason but your brakes will work fine without ABS. (as long as brake fluid is full) The expansion bottle should have some coolant in it as well as the radiator. My experience is the bottle has a low level sensor that can get dirty ( If it was full) But you seem to be losing coolant? Is the lid on tight? Do you ever see coolant on the ground or in the engine bay? Sorry that's a mystery from here. Hopefully it is not disappearing in your engine. That would be a bad head gasket!

Posted on Mar 11, 2010

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SOURCE: 2001 Aurora water pump replaced

On the Owner's Manual there's a procedure you have to follow to bleed the air in the cooling system, until you bleed the system for air, the low coolant light will come on every time.

The process is rather simple and quick, all you need is a flat head screw driver.

DO NOT OPEN THE COOLING SYSTEM WHEN HOT.

Good Luck!! Don't forget to rate this post!!

Posted on Sep 03, 2010

  • 1565 Answers

SOURCE: Gauges work fine when engine's started, then oil

start by checking the ground strap to the engine, and engine to body. The oil pressure sender unit may be bad. You may have to hook up an oil pressure gauge to the oil pressure sender port to verify proper oil pressure. Senders are cheap- I would just replace it and go from there.

Posted on Jan 07, 2011

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1 Answer

A light come on with a box with arrow pointing down looks like waves what does it mean


This indicates a low level of coolant in the coolant bottle/resevoir..... this symbol represents the radiator or coolant system liquid level.

Warning comes on to warn of coolant level too low.

When the engine is cold...remove the cap and check level. Add 50/50 antifreeze/water to level indicated on the side of the coolant bottle or tank.

Reservoir Bottles/tanks are usually transparent and you can see the coolant level through the plastic.

When coolant topped off to correct level, lamp will go out automaticly...no need for scanner or shop to turn it off. It will come on as a 'self check' when you turn on the ignition and if level is okay will go out when engine starts.

Sep 13, 2011 | 2004 Chevrolet Cavalier

1 Answer

A red service light keeps coming on and off a small rectangle that looks like a battery with a fluid level at the bottom and an arrow pointing down i lost my manual and forgot what it means


rw77766, This sounds like you have a low coolant light coming on. When your engine is cold, check the coolant level and add some if needed. Also check the overflow bottle and see if there is any coolant in there. If not then, once again, add some to the level indicated on the side of the bottle. If the problem persists, then you have a coolant leak or bad coolant level sensor and should have it checked out. Good luck with this.

Aug 07, 2011 | 2001 Oldsmobile Alero

1 Answer

I have a 2006 c5500 and the water light came on. Is it as easy as draining the fuel filter? and should I drain the fuel and change the filter?


Hi there,

It's important to understand that a "Water" warning light, does not relate to fuel.

If it is indeed a 'water' warning light, then it is likely to be either:

1) windscreen washer bottle water is low, or
2) engine coolant fluid is low (check the level of your coolant resevoir bottle)

If your coolant is low, then you should investigate why you are losing coolant fluid.


Cheers,

May 07, 2011 | GMC C3500 Cars & Trucks

2 Answers

Just had the water pump and serpentine belt fixed and now my "low coolant" light just came on. what does this mean?


Hi:
That warning light comes on when the level of coolant in the plastic reservoir tank becomes low. It is possible that the tank just needs topped off after the work on your car was performed. Basically, check the coolant and fill as needed, then keep an eye on your level to make sure there are no leaks on your vehicle since it was worked on.

Mar 25, 2010 | 1996 Saab 900

1 Answer

My service traction system warning light is on. What causes it? My ABS warning light remains on at all times. What causes it? My low coolant level warning light comes on often. The expansion bottle is...


Most traction systems have sensors at each wheel. These detect wheel spin (can be a loose connection, broken wire, dirty sensor) The ABS won't work for the same reason but your brakes will work fine without ABS. (as long as brake fluid is full) The expansion bottle should have some coolant in it as well as the radiator. My experience is the bottle has a low level sensor that can get dirty ( If it was full) But you seem to be losing coolant? Is the lid on tight? Do you ever see coolant on the ground or in the engine bay? Sorry that's a mystery from here. Hopefully it is not disappearing in your engine. That would be a bad head gasket!

Mar 11, 2010 | 2002 Chevrolet Impala

2 Answers

Low coolant light keeps coming on and going off.. months ago i had the intake manifold fixed due to antifreeze leak.. but theres no leak i can see.. some small smell of antifreeze but the light comes and...


Well, top off the overflow tank to the marks as indicated based on engine temperature, and see if it happens again, and note how long it took for it to happen.

Dec 18, 2009 | 2003 Pontiac Grand Am

1 Answer

On the dashboard circle that shows the numbers that tell how the engine is revving (?), etc...a red light has been coming on and then going off a few minutes later...symbol: small black arrow pointing down...


Red lights are always a warning of some kind. In this case you don't mention the make or model of car but I'm willing to bet it means the water level is low. Check the coolant level or the washer bottle level.

Nov 04, 2009 | 2001 Saturn SL

2 Answers

I have a 1997 buick skylark and my low coolant light is on so i bought a gallon of the local advance autos 50 50 and filled the resevor let the car run 5 min with cap off level stayed the same am i doing...


Are you sure the coolant is still low in the bottle. The coolant sensor thats in the bottle has a float that can stick. If it sticks the low coolant light will stay on even if the coolant level is right. Try tapping on the coolant reservoir bottle in the area where the electrical wire enters it. Not too hard. If that is the porblem the light should reset.

Mar 08, 2009 | 1997 Buick LeSabre

5 Answers

03 saturn ion coolant message


I have a 2005 Ion that had been displaying the "coolant" message for quite some time. The car runs perfectly, never overheats and the coolant bottle is always full to the "cold fill level" line when cold and slightly higher than that when hot due to the expansion of the fluid. (all completely normal) I had a strong feeling that the coolant level sensor in the coolant bottle was bad and had read about how it needed to be replaced by a tech and all but I wonderred if there was a way to defeat the sensor since I check my levels all the time anyway because the sensor was really just giving false info anyway. I couldn't find a tread involving a Saturn that talked about a solution other than having a tech charge me lots of money to replace the whole bottle. I found a way to bypass the sensor for a BMW though and thought I would try it. It worked perfectly. I plan on replacing the bottle eventually but right now money is tight and I don't need the sensor to tell me what my own eyes and my car's temperature gauge can tell me for now. Here's how you do it.

1. Unplug the sensor harness from the bottom of the coolant bottle.

2. Find a large paper clip and use needle nose plyers to make a "staple" shaped jumper that is about 1/4 inch wide (about the distance between the two contacts on the harness) and about 3/8 inch long.

3. push the jumper you just made into the end of the harness connector.

4. Start your car and ensure that the warning is no longer displaying. You can also insert the jumper while the car is running (be careful, the coolant bottle will be hot) because the harness is removed from the sensor the coolant warning should already be displayed. When you insert the jumper the message should go away imediately. The coolant level sensor has only one job and that is to tell the computer when coolant is low so you don't have to worry that you may be causing any other problems by doing this. If the coolant light doesn't go away you may have a break in the wire somwhere or a bad connection to the jumper.

5. If all works well, use electrical tape to seal up the end of the harness so moisture doesn't get in. Also it's a good idea to secure the harness to something nearby so that it doesn't flop around when you are driving.

All done. Sorry this was long but I hope that it helps someone. That warning really has been irritating me.

Keep in mind that this method does disable a key safety device that is designed (poorly) to warn you in the even of a coolant leak. Keep an eye on your temperature gauge and check your coolant level regularly. Get the bottle replaced when you can.

Oct 15, 2008 | 2003 Saturn ION

1 Answer

Idiot light that looks like a church comes on in the mornings


That's the low coolant level warning. There's a sensor located in the overflow bottle. Most likely when the engine is cold - like when you first start the car up the level is too low. Try adding coolant to above the line - it's a self leveling system so you won't hurt anything.

Oct 06, 2008 | 1986 Nissan 300ZX

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