My 1992 Ford Taurus keeps overheating. I keep refilling coolant 50/50 but still overheat can't see anything on the ground but when I've gone about a mile steam is pouring out of the hood of the car. I can make it 10 miles to work. The oil dip stick looks good. Then some days it doesn't overheat.
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Re: 1992 Ford Taurus Overheating
Thermostat is faulty.
It can be found by grabbing the top radiator hose and following back to the engine. The housing this hose is clamped to is the thermostat housing. Remove the 2 bolts, and the cover o reveal the thermostat.
It should cost less than $20 for a thermostat and gasket.
Replace it and your overheating isues will go away.
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First The heading says 99 Taurus but the question says 99 f-150. Second, are you saying that the engine is overheating? The heater won't work if the level of coolant is low and that would explain overheating. The thermostat controls the temp of the heat, so if it is stuck closed then water can't circulate to the heater and the vehicle would overheat, but this is unlikely.
the other answers seem to concentrate on a non-working heater. Good luck with this problem.
Does it overheat on you ??? If not,, try replacing the radiater cap..Make sure the vehicle is cold before removing the cap..If that doesnt do it,,and the vehicle not overheating,,you may have a small combustion leak..Like a head gasket..But first try the cap..
CHECK WATER PUMP WEEP HOLE IF LEAKING. BECAUSE OF SHAFT BEARING FAILURE CAUSE CAR TO OVERHEAT. MAKE SURE COOLING FAN WORKING CHECK FUSE AND RELAY.SCAN CAR TO MAKE SURE THE COOLANT TEMPERATURE SENSOR WORKING.IT CONTROLS FAN OPERATION.BESURE YOU ARE USING CORRECT COOLANT MIXTURE.YOU NEED 50 % ANTIFREEZE AND 50 % WATER. TO RAISE BOILING POINT.TOO MUCH WATER IN COOLANT SYSTEM WILL CAUSE CAR TO OVERHEAT.
Did you burp the coolant? If not, you have air bubbles in the system that are trapped behind the thermostat, keeping it from opening. Run the car at idle until it's 3/4 of the way to overheating, then shut it down and let it cool. Pop the radiator cap and the air bubbles will burp out. Check the level of coolant in the radiator and expansion tank, top off as needed, and repeat a couple times, and you should be good to go.
Seeral things possible, if your water is rust colored it is way past needed changing causing it to overheat as the coolant is designed to keep the car from overheating in summer and freezing in winter. Another thing is if you have recently added fluid and put Dex cool (is orange) in a vehicle thats not designed to run it you can also get overheating and have heard stories of it plugging up lines in vehicles. Try smelling it (pull the radiator cap/overflow bottle ) "DO NOT DO THIS WHEN THE CAR IS HOT" Does it smell burned or have a sweet pleasant smell. If burnt smell its been in too long and needs to be flushed and refilled. If sweet smell may be Dex cool and make sure your car can run on it (call auto parts store Auto Zone etc..) if not designed to run on it you still need to flush and refill with correct antifreeze 50/50 mix should be green. 3 is all checks out look at your Tstat it could be sticking and if sticking (not opening all the way) will cause your overheating issue. Could also be water pump and bad head gasket at worse case scenario. have it checked by a reputable radiator/repair shop
the thermostat can be easily changed from up top, the T-stat is located at the engine end of the upper radiator hose under the flange the hose connects to. Make sure u follow manufacturer's cooling system bleeding procedures when you refill after the T-stat is changed out.