Question about 1989 Ford Probe

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Engine water temp will not heat up

I have had my probe for a year and a half. Only 2 times has it shown any signs of the water temp starting to warm up. I have taken it on 4 hour trips and you can remove the rediator cap and stick your finger in the water without being burned. I covered half the rediator with cardboard and as soon as the temp begins to rise, the fan kicks on and it is cold again. Any help would be appreciated.

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Flush the radiator and replace the thermostat.

Posted on Nov 07, 2008


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1 Answer

My 2005 Buick terrazza has barely any heat at all. Tries to throw a little warmth while my engine is running at half temp sometimes just over! What do I do? Was told by the dealership in parts and sai

drain radiator of antifreeze then add some caustic soda about 200 grms dissolved in a bucket of warm water ,pour this into the rad top up with water and leave engine on idle for half hour ,drain -flush and run engine and see if its any warmer ,if it is the drain water again and give a good flush then refill system with 50% antifreeze

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No heat when car sits idol, only when moving.

is this your first car?
I will presume the fan is running at full speed and heat max is set and the that you tried recirc lever. fresh air is less heat...
Cab heat bad. right?
only when moving, what?
Ill guess that no heat sitting idle for 30mins. TIME MATTER.
as does time of day and if first start of day and if the ambient temperature (out door temp counts, and guess what no country or stated told so i cant look it up, me fail)
first off,
the modern engine can take a huge long time, to heat up dead cold and not driven , that is why the op guide tells you,
start car ,wait 45 seconds and drive off slowly,
the warms the engine fastest , saving 90%of all engine wear.
this is proven fact by Germany long ago and now with
hard fact.
now if you know the car warmed faster before.
then this is possible 2 ways.
1: bad thermostat. (slow)
2: or the engine is running so bad, that the heat to the water jackets are weak.

the cab heat will be the same as the engine water coolant
if the engine is cold, so will you be. hard fact.
there are no electric air heaters here...

here is a frozen air page.

2 tests.
1: does the engine hit 180F or more and hold?
2; does it do that , at the same speed, as when new?

if not we trouble shoot that first. (fan works, and blows)

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1 Answer

1998 Contour, When it is cold it runs fine. But when it warms up it idles very rough at low RPM. It dies sometimes when at a stop light or even going around corners. When it is acting up like this it...

I notice that you replaced the water pump,Did the car over heat at any time, If it did end you didn,t stop right away when it first happen, It can do real serious damage to the engine, That will give the syptons you are describeing,If you notice that the car starts to use more oil, That is a deffenet sign there was damage done to the engine,That it done damage to the piston rings, Have you changed the thermostat in it? It tell me allso when you stay your temp gauge is not working that the termostat .Might not be functioning(Properly)
End mess up the temp (Sending) unit. If the car is over heating there will be a loss in power,

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1 Answer

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After you start the car.. check the temp gauge.. if slow to move or stays cool.. you have a stuck thermostat.. as in stuck wide open.. needs replacement.

This also means it takes a very long time if ever to have warm air inside the passenger compartment as the engine never warms enough (during cool weather) to provide hot water to the heater core.

However if the temp gauge reads a proper operating temp.. and you cannot get warm air inside.. you have a control issue with the passenger compartment heating system.

A faulty thermostat will also result in poor performance and poor gas mileage.

Have this checked immediately.. if it were to stick closed suddenly (unlikely) your car could overheat.

This part is not very costly.. labor.. depends on which engine is in this car could take up to an hour to an hour and a half.. they may want to do a coolant flush and replace the coolant.. check belts and hoses while under the hood.

Best of luck

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For smell check to see if any oil is weeping from top engine gasket and dripping onto exhaust manifold, You should be able to check with flashlight while engine is idling.

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