I have a 1995 mazda 626 and the temperature gauge is freaking me out. As long as I am going at least 10 miles or more or have it in park and am reving the engine, the temperature stays where it needs to. When I have it in park or drive and am stopped the gauge quickly goes to the red as if it will overheat. What is the problem??
2006-07-18 08:19:54 · 10 answers · asked by Erowe 1 in Cars & Transportation ➔ Car Makes ➔ Mazda
Your cooling fan may be inoperable. The fan provides a means to move air through the radiator when the car is not in motion. With the car parked at normal operating temp, and the hood open, watch and see if the fan on the back side of the radiator comes on. If it doesn't, the fan motor itself may be bad, or the relay that turns it on may be bad. You can test this by applying current from the battery directly to the wires going to the fan (using a set of leads attached directly to the battery terminals. If the fan still will not come on, the fan motor is in need of replacement. If the fan spins, most likely the relay that switches the fan on and off is faulty. HTH.
2006-07-18 08:29:31 · answer #1 · answered by Harry 5 · 0⤊ 0⤋
You might have a bad thermostat. Once the engine cools slightly, the thermostat should shut to allow the coolant in the radiator to cool sufficiently. Then when the vehicle gets warm again, the thermostat should open. If it is broken and stays open the fluid can pass too quickly through the radiator and not eliminate enough waste heat. I doubt it is your fan. They rarely ware out. Just start the vehicle and open the hood. When the vehicle gets warm you should be able see if the fan rotates or not. It is also not your water pump. If no coolant was running through your engine from lack of the pump operating, traveling a few miles per hour would not generate enough wind to cool the engine. The reason it cools of is because the pump is working and it is moving more water through your engine. Your temp gauge is measuring the water temp, not necessarly block temp. There is no way the slight amount of air flow generated from 10mph of travel could cool the water in the engine that quickly. That's why you have a thermostat. So you can cool the engine when you are not moving.
2006-07-18 08:35:01 · answer #2 · answered by kdog 4 · 0⤊ 0⤋
I had the same problem, you have an air bubble in your radiator. It looks like your radiator is full of water but it is sitting on top of an air bubble. If your heater also blows cold then it is definatley this that is causing it. The wind as you travel cools the engine but when idle with no water it overheats. If this is the problem bleed the radiator.
2006-07-18 08:27:46 · answer #3 · answered by ? 5 · 0⤊ 0⤋
it might also be a bad motor on the radiator fan. it stays cool when youre driving because the air flow from the grille is cooling it, but at a stand-still there's not enough air moving through. either way, it shouldnt be an expensive fix for a 95 mazda.
2006-07-18 08:26:35 · answer #4 · answered by pceej 4 · 0⤊ 0⤋
Your fan is not working! when you are driving the air flowing through is cooling the engine. but when you sit in idle there is no air cooling it down. Its got to be your Fan
2006-07-18 08:25:41 · answer #5 · answered by hunter 2 · 0⤊ 0⤋
Check the fluid levels. You may need to add either water or antifreeze/coolant to your radiator.
2006-07-18 08:23:45 · answer #6 · answered by DragonL 2 · 0⤊ 0⤋
it could be a bad radiator,fan,water pump or it could be the coolent level the same thing happened to my Hyundai
2006-07-20 12:05:52 · answer #7 · answered by MICHELLE J 2 · 0⤊ 0⤋
check fuse for electric fans make sure in having enough coolant in radiator
2006-07-18 08:24:44 · answer #8 · answered by Anonymous · 0⤊ 0⤋
you have a bad water pump and it isn't cooling the engine.
the reason it does when it is moving is because the air cools it.
2006-07-18 08:23:49 · answer #9 · answered by a_playa04 2 · 0⤊ 0⤋
your ac is overwhelming your cooling system
2006-07-18 08:22:51 · answer #10 · answered by nobody722 3 · 0⤊ 0⤋