Question:
my car starting acting funny once it got really really cold. No heat comes into my car and after a drive for 20 minutes my temp. gauge goes into the red! What should i do to make it stop! I live in Minnesota, so you can imagine how cold it gets up here, i need heat!
Answers:
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Well, the temperature going into the red suggests a few things.I have a 2003 Landrover Discovery I, I need to put new pads on.?
1) You are low on coolant, they will cause no heat inside the car and your temperature to rise. But I'm pretty sure you've already check that, because that is the obvious.
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2) If your radiator cooling fan (if electric) was not working, then it would go into the red when you are sitting still idling (like in a fast food drive thru line). But normally if you drive it, the air from outside rushing past the radiator is enough from keeping it going to the red.
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But 2 would not apply since you have no heat in the car. You'd have plenty of heat if that condition was true.
The last thing that can cause that is the thermostat. When they go bad, they usually get stuck fully open or full closed. It sounds like yours got stuck fully closed. The thermostat acts like the water handle on your sink. When the car is cold, it closes completely to prevent the coolant from circulating in your car. This causes the coolant thats inside the engine block passages to heat up very quickly and get your car to operating temperature quickly. But once the car starts warming up, then the valve opens a little allow just a little bit of the radiator coolant to start circulating. When you car starts getting real hot, then the valve opens all the way to allow the maximum amount of coolant to flow (pass the radiator) and cools it back down the quickest. While driving the thermostat constantly adjusts but attempt to keep your temperature to about 150-180 degrees.
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So if you made sure your coolant is full, then theres a way to sort of test the thermostat. Once the car reaches operating temperature (temp guage in middle I guess) then try grabbing a hold of the large radiator hose on the top of the car and squeeze it a little. It should be hot too the touch (you shouldn't be able to hold it more than 2 seconds) and you should sort of be able to feel/hear the coolant running through it. If its not hot, then that means no coolant is running through it and thus its not running past your radiator to get cooled down. This means your thermostat is stuck closed.
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Its a 5-10 dollar part and you can do it yourself. It should come with a gasket. You need to buy some sort of sealant. I forget the name, but I think its ATV sealant. The best kind is the one thats has the gel with a blue color. Ask the autoparts guy for a tube of the sealant you need, he should know what you're talking about.
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Follow the upper radiator hose to where it ends (not in the radiator, but on the engine, towards top). The piece of metal that it ends at is the thermostat cover. It is inside of there. Just remove the two bolts that hold it on. Scrape off the old gasket until is shiny and clean. Put some of the sealant on your finger and rub it on both sides of the gasket. Dont gunk it on there, but dont be too sparingly either. Pull the thermostat out with your fingers and pay attention to which way the cone shaped thing is pointing. It does make a difference, if you put it upside down, it wont work correctly.
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Sounds like you have a thermostat stuck closed or a blocked heater core. You may also have an air lock in system, this happened to a friend's van once.replaced fuel pump on 1999 blazer?
First check the thermastatSee if there is antifreeze in it,esp after yesterday,lord was it cold.
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sounds like you don't have anti-freeze in it.. check the radiator and over flow bottle if they are full.. then you need a new thermostat.... it is probably stuck in the closed position and won't allow the coolant to flow through the engine to get hot, and then to flow into the heater core to provide heat.i have a 96 GMC Jimmy and calls only for Dex Cool to be used as antifreeze.....?
you either need a new thermostat or your radiator needs to be flushed outi would not guess t-stat. if the engine is getting hot too soon, it may be low on coolant, if the heater blows air but the air never gets hot, you engine may be low on coolant. 2 outta 2... i would top the antifreeze off before you even ask another question.
the reason for this is that the heater core is the highest point from the ground of your cooling system, if its low it wont make it to the core.
Check the thermostat it probally is stuck closed and needs to be replaced also check the radiator for water flow when car is running but do not open while hot.
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if the thermostat was stuck closed, there would still be heat! My bet, you didn't mix the anti-freeze correctly, or the water pump has decided to stop working.Need Engine for a Yamaha 250cc (DS7). 1972?
First make sure the coolant level is full first, if it is and it still overheats then check the thermostat and waterpump and cooling fan relay and fuses.which do you prefer to upgrade first? coil spring or shock absorber?
i just dealt with this exact problem on a truck yesterday quess what the problem was. the antifreeze was to week meaning the owner had more water than antifreeze in the cooling system and and it froze and ice does not surculate. get an antifreeze tester and check it.i need to know how do i tell wheither or not my timing belt or my fuel pump is gone out on my car?
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despite missing factors. no circulation in cooling system .
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You can check the rad. My rad had a leak. There was NO heat in the car. Once the rad was replaced & the air pockets gone, the heat came back & all was well.I have a 94 Lincoln Town Car with a fuel leak.?
You probably have the answer already, but you thermostat could be stuck shut. This prevents coolant flow making the heater not work and the engine overheat.Is it my clutch, O2 sensor, or transmission going out....Or could it be something else?
The first place I would check is the thermostat. Sounds classic, and if it doesn't open the car will heat up and you won't get any flow through the system. To check it remove it from the car and with a string attached place it in boiling water to see if it opens. If it does have your system flushed. I would replace it anyway when you have it out, they are cheap.More Questions & Answers ...
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