I have a 1995 Taurus with 3.0 overheating. I have replaced the theremostat and the water pump.?

Question

I have take the thermostat out and left it out. However it still overheats and in fact the heat still works which it should not when the thermostat is out. It is not leaking. I have checked and the system is definately not leaking. I am at my wits end. It overheats fairly quickly. However there are some days that if you drive it for about 20-30 miles the tempature gauge will go back down to normal. After that it doesn't overheat until you turn the car off. When you restart the car, it will start overheating again. Any idea's would be great. Thanks

Answer 1

first off, your heat in the car should work whether your thermostat is in there or not. the way a thermostat works is by diverting coolant from the radiator until the engine is at 190 degrees or higher depending on the car. You can test the old thermostat by filling a pot with water hanging the thermostat in the water and heating it until it reaches boiling. If the thermostat doesn't open before 212 which is boiling it is shot and you should replace it. If it does open there is nothing wrong with it. I would guess that if this problem occured after you replaced the water pump and thermostat you have an air lock somewhere in the engine and need to research the correct air bleeding procedure.

Answer 2

An 05 cooling gadget should be drained flushed and wiped clean. What you're describing appears like a radiator it really is no longer crammed to the right even as the engine is stone chilly, the plastic coolant fix bottle isn't crammed 3/4 finished and the AC-Delco radiator rigidity cap ought to get replaced. If each person has ever dumped less costly save antifreeze that did not say Dexcool on the bottle contained in the cooling gadget it surely will favor to be drained, flushed and wiped clean with GM powered acid cooling gadget cleanser. Any Chevrolet broking service will clarify how right now the cooling gadget will plug-up even as the different antifreeze is blended with the generating unit fill of Dexcool. wish you had listed what the sprint cooling gadget temperature reads or the position the needle is after a 5 mile rigidity. also wish we knew how severe you've the heater administration set. do no longer use the air conditioner till the abode windows are moist interior or that's warm out! Use the heater purely. I personal a ninety 9 Pontiac 3.8 Grand Prix and the cooling gadget works ideal. i have listed each and every tip it really is been finished to our cooling gadget. I scanned some feedback from non-mechanics above who suggested you desire a water-pump that you surely do no longer favor! If the better radiator hose is warm after a 5 mile rigidity you do not heed a water-pump. in case you get warmth contained in the vehicle you don't desire a water pump. Shirley is yet another non-mechanic. It does surely no reliable to rod the radiator or sparkling it out with out cleansing the completed cooling gadget.

Answer 3

That's fairly old for a radiator. Half the passages are probably clogged. If it heats up faster than it used to, your engine is making too much heat for some reason.. If it gets to operating temp in the usual time and then gets hotter, replace the radiator.
And make sure somebody didn't have the bottom hose off the radiator and leave the spring out. The water pump suction will collapse the hose. Also make sure the radiator cap is good. Cooling won't work right if the system doesn't pressurize.

Answer 4

I'm not a mechanic but there's one thing you have not checked. The Radiator. And, by the way, your heater will work with or without the thermostat. The thermostat only regulates the temperture of the coolant circulating through the system. It does not block the coolant from circulating through the heater core. My suggestions would be to flush your radiator using a flush compound that also breaks up any build up in your radiator. Plenty of products for that. Also, check your oil to see if is has a milky tint to it. If it does, the head gasket or head itself may be cracked or ruptured causing your coolant to seep into your oil. I would also reinstall the thermostat, it's a cheap part. Also make sure your coolant/water ratio is at the spefication levels for the automobile and season.

Answer 5

Are you sure the car is actually running hot, or the gauge just says it is hot? Once the engine and the coolant gets to operating temperature the heater will work, it will just take a little longer to heat up. If it is running hot, check and make sure the engine fan or fans are running. If they are then you have to have a restriction somewhere. Radiator could be stopped up or partially stopped up. A hose could be collapsing, it is hard to say but something is stopping coolant flow somewhere.

Answer 6

Check your thermostatically controlled electric fan. It may not be operating correctly. Removing thermostat may also allow the water to circulate through the engine too fast for the radiator to cool it down.

Answer 7

Maybe check your heater hoses to make sure they are not clogged up. Cut the center of the thermostat out and put it back in the neck. Check your radiator cap and put some antifreeze in it. Check the radiator fan, see if it is pulling air. Put a piece of paper in front of the radiator (opposite of fan) while the fan is running and if the paper sucks to it you are getting proper vaccum, if the paper does not suck to the radiator, you may need to check into a new radiator.

Answer 8

We had this problem on my parents car, One day it just went completely dead on the highway and come to find out that a small black wire to the battery came loose, so we cleaned the connections well and fixed that one cut wire to the battery and now it works perfect. Be sure to check your battery connections, because the guage is computer controlled and messes up when their is a battery connection problem. It was claiming it was getting real hot when it was freezing cold outside, then it died and the guage went as far as it can go on the hot side. Hopefully this can fix it like it did on our car.

Answer 9

the most common thing on your car is a leak headgasket. there is a recall on your vehicle.call the dealers for more info.they redesign the new headgaskets. all Ford and Mercury vehicles with a six cylinders have this same problem

Answer 10

re other answers if your fans are working a blown head gasket could be the cause, noticable creamy subtance in radiator or oil filler is dead give away.