Question about 2004 Mini Cooper

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2001 mini over heating- cooled car off- filled overflow- started car- started to heat up- stopped engin- cooled off- refilled overflow- steam comming out of overflow when car is started

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Check the thermostat

Posted on May 14, 2009

  • Thomas Tabron May 14, 2009

    Also check the radiator cap to see if it is still any good.

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Bad thermostat. Fairly inexpensive to replace.

Posted on May 14, 2009

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1 Answer

Overheating when I sit idle.


Over heating the engine is a serious concern. With the hood raised you should hear the motorized fan turn on just behind the radiator as the engine requires additional cooling.. If you look in from the rear of the radiator you should see the fan blades.

This electric powered motor operates on a thermostat and when the engine temperature rises this fan should come on. I'm assuming from your description that when driving and air is flowing through the radiator as the car travels the engine is nor overheating.

Check fan motor thermostat, check fan motor and check wiring.

Wiring Diagrams related to the Honda Civic
http://www.wiringdiagrams21.com/category/automotive/honda-automotive/civic

Motor engine cooling fan only runs as engine temperature requires additional cooling.
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Jan 05, 2016 | 2001 Honda Civic

1 Answer

Truck getting hot and over heating but there is no heat


You have a vapour lock. The coolant isn't flowing. The remaining water is not cooling your engine evenly so you could crack your engine block. The water that isn't circulating turns to steam. The water pump could need replacing if the impeller failed. You may need a new thermostat. Get someone knowledgeable enough to fill your radiator properly and then keep the overflow reservoir filled to half. Check that bottle at least every week.

Nov 29, 2013 | 2006 Ford Explorer

2 Answers

Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

2 Answers

2002 Mini Cooper overheating when idling with the airconditioning on. Initially the air is cold and as the car engine temperature heats up the air conditioning gets warmer. Also, the radiator overflow cap...


Most cars have an 2 electric fans on the radiator. One will run when the coolant gets hot and the other will run when there is more cooling demand OR it will run when the AC is turned on. My guess is, the second fan is not running when your AC is. Your AC system creates heat of its own. The heat is removed through the condenser (radiator-like coil) which is usually located in front of your engine radiator. Without a fan the heat is transferred into your engine radiator causing it to over heat. This would explain why it overheats while idlling and not while driving. While driving, air is flowing through the radiator and condenser. to provide the necessary cooling. In short, check to see if both fans are running when the engine is hot and the AC is turned on.

Sep 02, 2011 | 2003 Mini Cooper

1 Answer

2002 Caravan,3.3 V6,FWD,had a loose rad cap and lost fluids till no heat in heater.Replaced cap,filled overflow reservoir,ran for a few kms,refilled tank.Still no heat unless motor revs,all levels are...


You still have a lot of air in the cooling system and you have to speed up the water pump to get any coolant to flow through the heater. Let the engine cool off, then open the radiator cap and top off the radiator. Pour the coolant in at a rate slow enough to let the air bubble up without splashing the coolant back out. Once you get the coolant level up to the top overflow hose, the remaining air will be pushed out by expansion through the overflow tank once the engine gets hot, and will be replaced by coolant from the tank on cool-down.

Mar 12, 2011 | 2002 Dodge Caravan

1 Answer

2001 Town and Country. Coolant backing up into overflow bottle, which is causing the overall level to drop. As a result, I have no heat in the passenger compartment. Get heat when system refilled. At a...


If everything is working correctly; thermostat, heater core, water pump, head gaskets, etc. Then that leaves the radiator cap, the overflow hose or the overflow tank as being the problem.

As the engine heats up the coolant expands flowing into the overflow tank. As the engine cools the coolant is drawn back into the engine from the overflow tank. but this depends on the vacuum created by the cooling liquid. the radiator cap has a "valve" that lets pressure out and vacuum in. If it fails then you may not achieve a good vacuum. The hose that connects to the over flow tank must be non leaking as well; if it leaked then coolant would not be drawn back into the engine, only air would be sucked in. And lastly the coolant has to be drawn from the bottom of the overflow tank. again we dont want to be sucking air.

Some engines require a vent screw to be opened when bleeding the air out of the engine.

Jan 14, 2011 | 2001 Chrysler Town & Country

2 Answers

Heat is not working - coolant was low so filled it.... problem here... heard something about an air pocket


If you dont have an external coolant leak anywhere under your hood that has shown up on your driveway it could be the intake manifold or the headgasket leaking. Also check the thermostate to solve the heat issue.

Jan 05, 2011 | 1998 Pontiac Bonneville

1 Answer

We get NO heat when the car is idling. We we use the remote start the motor warms up but there is NO heat to the car. When we start driving then we get normal heat, until we stop at a stop light...then brr...


check your antifreeze level. It's probably low. if you add to it and it doesn't fix it you may have air in the system. Wait for the car engine to cool, remove radiator cap and start engine. the fluid will start coming up and you should see bubbling. Shut engine off before it overflows. if you didn't see any bubbling there likely wasn't any air in the system. if there was bubbling fill the antifreeze to fill line again and repeat process until no more bubbling. make sure to let engine cool before taking off cap.

Dec 13, 2010 | 2008 Chevrolet Impala

1 Answer

Over heating -The water resevoir is full,but the computer keeps telling me to re-fill.Also the cooling fan is running almost permanently?


Just because the overflow reservior is full does not mean that the rest of the cooling system is also full. The engine itself is very low on coolant and running hot as indicated by the temperature guage showing hot and the cooling fans running continuously. You obviously have a leak in the cooling system caused by either a faulty hose or radiator which is leaking once the system pressure increases as the engine heats up.. The rubber hoses in the cooling system can go hard and start to leak where they attach to the metal piping around the engine as they get towards 10 years old. Thoroughly check all hoses including heater hoses and the smaller bypass hoses around the engine for splits or leaks. Stop engine and allow to cool, replace any defective hoses or hose clamps and then refill radiator. Restart engine with radiator cap off and idle engine with heater control on full until it reackes operating temperature while continuing to add coolant until the system is full once again. Allow the cooling fans to cycle on and off a few times to ensure there are no air locks in the system. .Hopefully you have not overheated the engine to the point where you have caused a problems with the head gasket which could allow coolant to leak into the sump. This will be indicated by the dipstick showing a milky emulsion instead of just oil on it. If the haad gasket has failed, it will necesitate removal of the haed, have it machined, and then replaced with a new gasket. Not a cheap exercise.

Oct 23, 2010 | 2001 Saab 9-3

2 Answers

2002 pt cruiser overheating was told i need a new raditor and thermostat for 1 grand sounds fishy


Flush rad & change coolant & thermostat. Check operation of rad fan, & make sure it is coming on when engine reaches normal operating temperature. Be sure to bleed air out good when refilling rad/cooling system. Start engine & turn heater on when refilling & let rad fan come on & off at least 2 or 3 times before putting cap back on rad, and refill rad as needed as you do this. then fill return bottle to proper level & see what happens.

Jun 27, 2009 | 2002 Chrysler PT Cruiser

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