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My 2006 cooper uses alot of coolant. No leaks, I have check.The term gauge stay on operating temp. After you stop the boiling hot water is pushing back into the water bottle still boiling.

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This is a common problem with this car. Just make sure to always have extra coolant in the trunk!

Posted on Mar 15, 2011

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2 Answers

Radiator fans not coming on. replaced thermostat and cooling sensor


Hi Bill, is the engine actually getting hot enough for the fans to come on? if the engine does have overheating problem (but you say the temp gauge reads normal) then i would check the operation of the engine temp switch, there are two, one for the gauge and one for the fans.

Oct 15, 2016 | 2006 Ford Escape

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Temp/gauge not reaching normal working temp-richer


the first thing to check is to feel if the radiator is hot, if the radiator feels hot and the engine is also hot the coolant is circulating ok then the problem is more than likely electrical, the temp gauge gets its signal from the engine control module the coolant temp sensor sends coolant temp signal to engine control module for engine managment purposes then passes it to instument pack/gauge, if the sensor was at fault you would have engine running problems also,with poss fault codes logged, if the engine and rad are cold/only warm after the engine has been run for 15 mins or so it sounds like the thermostat is stuck open but you have changed that. i have had faulty new ones in the past and have had to test them in a pan of boiling water, hope this is some help to you.

Apr 02, 2015 | 2006 Jaguar X-Type 2.0

1 Answer

My 2004 model ford bantam always getting hot when am driving would u answer me any one now this please ?


Many possibilities, first check water/coolant level, check for leaks after running engine for about 10 mins, or sitting overnight, then check radiator air flow is not restricted, and fins are in reasonable order, check fan, make sure it cuts in before engine gets to hot, check if there is water in the oil (looks creamy) or oil in the water, if so you need a head gasket and/or a new head. flush engine block with high pressure water in reverse flow direction, then check thermostat, use thermometer, put in a pot of water temp, is stamped on body of thermostat, if not, bring to boil, should open well before boiling point, replace if needed, check water pump fins are not worn away. get specialist to use lazer temp gauge.

Hope this helps.

Mar 27, 2015 | Ford Bantam Cars & Trucks

3 Answers

1998 saab 9.3 has just started overheating. no obvious leaks. the coolant system reseviour is boiling hot water


The classic cause of this is a head gasket leak to the coolant jacket, which will cause quick overheating.

You may see white bubbles in the coolant like dry ice, if you start the car from cold, allow the temp gauge needle to just move off the stop, then remove the radiator cap by grasping it through a large towel spread wide on top. Look then down the radiator neck while the engine runs and warms up.

There is a simple test for combustion gases in the coolant, which your local mechanic can do.

https://www.youtube.com/watch?v=a3J00_e7fyo

Oct 26, 2014 | Saab 9 Cars & Trucks

2 Answers

Is it normal on 94 grand prix 3.1 for the temp. gauge to NOT stay at a steady temp. all the time? mine seems to go up to 210 at a stop light then go back down after i start rollin again, i just had air...


Have you checked your cooling fan to see if it is working propely? Let the car idle and get warm and listen for the fan to kick in (if they are electric) or just watch to see if the fan starts to spin faster if it is the old school type with a clutch. Have you replaced the thermostat? A bad one will let the temp rise since it opens too late and then the temp will drop off. But it won't due this only at a light and it will do it infrequently.

Apr 18, 2013 | 1994 Pontiac Grand Prix

1 Answer

My car's fanbelt broken on high speed and I saw the temperature raised so I stopped immediately before it could overheat but then I saw the water leak out.After replacing the fanbelt I put Water in again...


Hi,
You did well by shutting down quickly.
Why did the water come out when you stopped after the fan belt broke???
Residual engine heat. The engine has fiery explosions going on in the cylinders. Very hot.
Antifreeze flowing through the water jackets of the engine carry this heat away. Fan belt breaks, water pump stops pumping this very hot coolant away, engine temp goes up.
Thus the coolant temp rises enough to boil and push the coolant past the pressurized radiator cap out the overflow onto the ground.
I would recommend a fifty fifty blend of antifreeze and water for coolant. It just cools better.
Not seeing any leaks is very good. Smart thinking on your part saved you money.
Wayne

Feb 13, 2011 | Mazda MX-6 Cars & Trucks

1 Answer

My temp gauge is going back in forth. when i accelerate the gauge goes to hot. when i stop the gauge goes to cold, can u tell me what is wrong


check your coolant level. It is important to pressure test the cooling system to ensure it can maintain 15psi pressure to keep the coolant from boiling off. When you accelerate combustion temperatures exceed 1000 degrees while the engine needs to operate between 190 and 220 degrees roughly. If your coolant level is good, replace your thermostat, which is usually cheap. If the problem persist you are looking at a possible water pump.

Dec 16, 2010 | 1994 Dodge Shadow

2 Answers

Thermostat?


It actually sounds to me like you're low on coolant. My Jeep leaks coolant and whenever it gets low the temp gauge will go real high and then drop, and the heater doesn't work well. This is because the cooling system of your car is supposed to be a closed system, full of coolant and no air. When coolant leaks out, the space it used to occupy is now occupied by air, which does not transfer heat well. When 'air' is passing through your cooling system, no heat can be transferred from your engine to the heater and radiator, resulting in a hot engine and no heat at the heater. Then when a pocket of water passes through the system, the temperature gauge quickly falls as the water absorbs the heat from the engine. The hot water that cools the engine is where the heater gets it's heat from as well, so when water passes through the heater core, the heater works, but when it's filled with air, it doesn't.

Hot water runs through the heater core regardless of whether or not your thermostat is open or closed. That's why your heater works in the winter even before the engine is at normal operating temperature. The fact that the heater stops working is a good sign that the thermostat is probably not the culprit.

As for the water pump. If the water pump was bad, your temp gauge would go into the red and stay there. Water pumps generally don't work intermittently. Either it's good and ot works, or it's bad and it doesn't.

However, if you are in fact low on water, as I suspect, it means you probably have a leak somewhere. The leak could be in the water pump housing gasket, so depending on where you take it for repairs, they may try to sell you a new water pump anyhow. So just beware of that.

Feb 12, 2009 | 2004 Chevrolet Blazer

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