Question about Swiftech MCB-120 "Radbox" Radiator/Fan Housing

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My 1995 jetta started smelling hot thermostat guage in car seemed to be working fine.Then water check light came on, couldnt find radiator noticed over flow was steaming. Went to remove cap boiling water and steam shot out. Drove car on freeway with heat full blast to try and get car home did now temp gauge says normal still boiling and blowing cold air only. please help

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Your thermostat is out

Posted on Dec 28, 2009


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My 2001 Volks Jetta started to overheat up to 260 degrees. What are the causes for this?

the advice I will give you is to leave the car completely cool down and then open the filling tank and get a smell. If it smell like burnt gasket or rubber means that you have overheated engine ,or if it smell fuel then you have to remove the cylinder head for further repairs,like renew gasket or renew cylinder head if is cracked. If it doesn't smell anything then you are lucky and you have to renew the thermostat and the coolant. There is a possibility also the water pump not to rotate the coolant and that will be noticed when the thermostat opens and on reving up the water will not move in the tank. Also the radiator possibly is semi blogged. Check it when hot and engine off by touching on the radiator vents surface all over the radiator,and if the temperature is not same all over then the radiator has to be removed and send for cleaning.

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Heater blows cold air 1995 plymouth voyager

could be a cracked block engine.what i would do is put a tarp or old sheet down park vehicle on it and wait then when you check you can look on old sheet to see where its leaking and it will give you an idea where to look for the leek if it was head gasket youd have sludgey looking whitesh foam in the oil

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Driving in very hot weather, stopped at light,

you may have blown the head gasket.
check the coolant level,is it low?
if it is ok,check the fan switch on the radiator,change the thermostat,and check that the fan is working.
the fan has to work,saab engines run very hot.
there is a after run fan switch as well that measures engine compartment temperature,and can start the fan even with the car off,so be careful.

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1994 Chevy Silverado temperature guage shows hot

Flushing the radiator, replacing the radiator cap, adding new coolant, replacing the sensors and a new thermostat solved the problem. Probably didn't need to do all of these things - but since we just purchased the truck, and given the fact that is probably hadn't been done in a while, we chose to do all of these things (which really didn't cost a whole lot), it's running like a charm now.

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1995 chev. cavallier dosn't push out heat, only cold air

EVen with the temps as they have been you should be able to get to "operating temperature". Yes the thermostat is probably stuck open. Follow the top radiator hose to the water neck on the engine. There you will find 2 bolts holding the water neck in place. With the engine off and cold, release the radiator cap slowly. Then take the two bolts out. Remove the hose out of the way and there you will find a poppet thermostst. Pull it up and replace it with the new one. ( I always test my new ones in a pot of boiling water to ensure they work properly) Clean the mating surfaces, andf reinstall in the reverse order.
Hope this helps you and rate me highly please.
RPM Northwest

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Heater gets cold while running down the road

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Nov 25, 2008 | 1995 Chevrolet Caprice Classic

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Engine problem.

Hi Michael,

The motor shut off and the engine light came on, you won’t start right away and you wait a couple of days and start it again, sounds like your engine was over heated and because it is too hot and the engine frozen.

There are several kinds of engines, water cooling ,oil cooling and air cooling.

Over heated can cause many different problems for the cars, you should check step by step yourself.

Water cooling engine; if you know, you can help somebody.

1. Check the radiator see if you have enough coolant
2. Check the oil see if you have enough oil
3. check the water pump see if the water pump works fine
4. check the thermostat see it is function right.

Suppose your radiator has water or coolant, leave your radiator cap open, start your engine, let it is running 10 to 15 minutes and wait it is getting hot and see the water in your radiator, if the water moves, that means your cooling system works fine, otherwise either the thermostat frozen or the water pump was broken.

You mentioned when you re-start your car, sounds like a diesel engine, please check the where the noise from, if the noise from the water pump area, that means you need to change the water pump. When you change the water pump, change the thermostat at the same time, because when the engine over heated, the thermostat maybe damaged.

Oil cooling engine, check the oil pump. If the noise from the oil pump, you need change it.

Good luck,


Jun 05, 2008 | 1992 Volkswagen Jetta

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