Question about 1995 Mazda Protege

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Thermostat radiatot bought new radiator car still ran hot bought new thermostat car still running hot whats the problem

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Look for bleeder valve on thermostat housing or other coolant hoses or lines. possible traped air in cooling system,will cause car to run hot.

Posted on Jul 27, 2008

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I have a 1996 dodge ram 1500 running hot i have replaced water pump, radiator, thermostat, radiator cap, and checked all hoses and ran a block tester i am leaking no water why is it running hot water...


Sounds like u have an air bubble. Easiest way to get that out is jack the frt of the truck up as high as u can get it with the radiator cap off and run it

Apr 17, 2013 | 1996 Dodge Ram 1500 Club Cab

1 Answer

What causes hyundai Elantra 2002 tempature gauge fluctuates between normal and hot


The thermostat "seals" the cool coolant giving up (rejecting) heat in the radiator & heater core from the hot coolant absorbing heat in the running engine "block".

When the coolant in the engine reaches a specific temperature (180 ~ 195 degrees) as determined by the value selected by manufacturer or when replaced, it opens and allows the hot coolant in the engine block to be pumped out to the radiatot & heater core for cooling and the cool coolant in the radiator / heater core is pumped into the engine block - replacing the hot coolant. The thermostat senses cool coolant in the engine block and seals shut until the temperature of the coolant in the engine block rises to 180 ~ 195 degrees again. This process continues over and over for as long as needed.

You should check to make sure that the coolant level in the reservoir / radiator is sufficient by checking when cold. Do NOT remove a radiator cap when it is hot! With the cap off, start the engine and add additional coolant as the engine warms up to normal operating temperature. If coolant levels are ok, the trouble could be related to the thermostat or possibly a faulty temperature sending switch. This means that the temperature of the coolant is fine - but the switch or sensor that converts the temperature to a voltage for the gauge on yur dashboard is the problem.

If the temperature is fluctuating up and down, you should have it fixed. Good luck!

Apr 12, 2013 | 2002 Hyundai Elantra GT

2 Answers

Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

1 Answer

Ran hot put thermostat in/ ran without running hot then water looked like it was coming from where fan was located is it shot or just radiator/ water pump what


you may have a leak in your radiator,, you can have them pressure checked . I'd do that first , by put thermostat in, I'm assuming you meant you replaced the one that was in there to begin with, if thats the case, make sure you replaced it with the correct temp rating for your car ,

Aug 10, 2011 | 1996 Jeep Grand Cherokee

2 Answers

The heater just quit working. It worked fine yesterday but this morning it does not. The car is running a little hotter trhan normal but not overheating. Any ideas?


I would check to make sure the radiator is full and the overflow tank is filled to the proper level. It doesn't have to be very low for these cars to stop blowing heat.

Feb 01, 2011 | 1992 Subaru Legacy

2 Answers

My 2001 mazda millenia ran hot, we put water in it and it still ran hot does it sound like the thermostat?


If your car ran hot, you may need to check the radiator for a leak. You always need to add antifreeze/coolant when you add water to your car. Check you owner's manual for the type they suggest and the proper mix of water to antifreeze/coolant. I had to get a head on my motor shaved when my car ran hot and later I had to get the hoses replaced. My radiator cap died following my replacing the radiator as it was plastic and when the car overheated it damaged the cap. How long was the car running hot? You don't want to be a penny wize or a pound foolish when it comes to engine overheating problems. You can repair on the cheap now and pay a lot more in the long run. Also, in the future when your car runs hot, you can turn on the heater --yes even when it is hot outside--I recommend opening up the windows. The heater fan will help to dissipate the heat from the car engine. It does work. I hope these help. Also go to a reputable repair shop. It could be your thermostat they can have check valves which get messed up but you need to check to see if it is your radiator or if there is a leak there or in a hose.

Jun 07, 2010 | 2001 Mazda Millenia

1 Answer

Car running hot, clicking noise in dash when turn the heater on


Thermostate goes bad (it might be placed it reverse way) or gatting stuck not opening. Engine might die it you wont have it checked ASAP. Also if you bought an aftermarket cap (not for GM) it might cause the ptoblem with coolant pressure. Check that it says for how much psi.
Hope that helps
Good Luck

Mar 17, 2009 | 1999 Chevrolet Malibu

1 Answer

Running hot


Radiator Fan Control Relay Switch. I bet your electric fan doesn't run?

Dec 01, 2008 | 2002 Nissan Altima

2 Answers

97 dodge ram running hot


What temp rating is the thermostat you bought ? there are 3 I believe for your truck, check this and if it is rated below 200 degrees then I would re-flush and add new anti-freeze 50/50.

Nov 05, 2008 | 1997 Dodge Ram 1500 Club Cab

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