My 1992 Camaro continues to run hot. It is not the thermostat or air in the hose. Any ideas?

Question

Yesterday, I stopped in to a mechanic who checked everything. I do need a new sensor on my car and had an air bubble in the hose. He added coolant, and said I need a sensor which he said he would order and put on the car. I might add that recently, I had a new thermostat put in. An hour later, as usual, my car was running hot again. I was told that I could drive this car without the thermostat and that would solve the problem. I am no mechanic, obviously, PLEASE HELP ME!!!!!. Why is my car always running hot?

Answer 1

Some things to look at. When the engine gets up to temperature rev the engine up and see if the lower or upper hose's are collapsing when this is done. The sensor the mechanic talked about may directly work the cooling fan, and this could be why it is heating up. Does it do ok out on the road, and heat up when you get in traffic? If this is the case, the fan is not operating as it should, hence; the sensor is not sending the signal to turn on the fan. Don't take the thermostat out, you need that in it, because Sometimes the coolant will circulate too fast, and not allow it to stay in the radiator long enough to cool it. If all else fails; take it to a mechanic that can do a pressure test on the radiator as well as the cap. It's either a leak in the system, the radiator is stopped up, a hose collapsing, the belts slipping, the wrong water pump on the car (as it is a reverse flow type), or a blown head gasket. A pressure test will narrow it down to the problem. I'm supprised the mechanic didn't do this test, as it is kind of the first thing one would do to find the problem. Is there anything obstructing the air flow into the radiator, or an air dam missing off the front of the car? This is not a mystery, and a good mechanic should be able to locate the problem right away. Check the passenger side of the floor panel to see if its wet with coolant. A leaking heater core could be doing it. I hope I have been some help to you. Good Luck!!

Answer 2

on a 92 camero if it has an electric fan to cool the radiator the sensor may be bad and not turning on the fan to cool it...some people say u can run without the thermostat this is a yes or no answer depending where u live in the northern states u may be able to get away with it but if u are living in florida i would not recomend running without it...the computer needs a proper reading to keep your engine running right to get the best performance and economy.... if it were a head gasket problem u can look into the radiator for bubbles in the coolant when running....if it were a water pump in this case i dought it the weep hole would have tell tale signs of leakage.....the normal temp range for this car is normally at 195deg running on the highway and in the city the temp would be around the 200-210deg area....the other possibility could be the radiator is getting too much corrosion on the inside of the cooling fins..replacment is the only cost efficient way to fix this...dirt and bugs on the front of the radiator can also cause this u can blow the dirt and bugs off at the car wash just be carefull not to damage any fins when doing this.....


hope this helps

Answer 3

Electric fan? I'm fairly confident it is. If the fan runs off the engine then replace the clutch fan. If it's an electric fan, make sure it is operating properly. If all of that is good, make sure that the coolant is moving around when you open the radiator cap. Look down in the radiator to ensure it's flowing when the thermostat opens. It may also be possible that the radiator is all plugged up. Good luck, I would suggest troubleshooting in that order.

Answer 4

First off it is not recommended to run without a thermostat. Some times the fluid runs threw the radiator to fast to get all of the cooling effects. Next time your engine is running warm, or even normal, shut off the car, and run your hand around the outside of the radiator, and check for cool or cold spots. If the center of the radiator is hot and the sides are cool, its time for a new one. They plug up from normal use, and low matinance on the antifreeze. The next thing is be sure the clutch on the fan is tighting up when the motor warms. If the engine is warm and the fan spins freely, you have fan clutch problem. Good luck.

Answer 5

Have the mechanic pressure test the cooling system. This sounds suspiciously like a small head gasket leak-into the water jacket. The combustion gases are boiling the coolant. Coolant pressure should be checked without en gine running, and then with engine running.:-(=

Answer 6

The radiator cap could be the problem which is making the car build more pressure than it should. About 12 bucks will rule that out. The next thing i would check is my ignition timing. If timing is off it could make your car run hot and also not want to shut off right away after turning off ignition.

Answer 7

my suburban was doing that not too long ago and u know what it was take a guess it was the heater core so my cousin told me to bypass it all i did was unhook the heater core hoses should be just 2 and got a piece of copper pipe and connected 1 hose to 1 end and the other hose to the other end another cool trick is when Ur motor over heats drop Ur windows and run Ur heater on lo good luck

Answer 8

have the water pump replaced and make sure the belts are tight.. also replace the thermostat again sometimes they go out or are faulty and check the heater core and get the sensor replaced

Answer 9

Thermostat,Radiator damage.

Answer 10

I would check the fan or fan clutch to see if it works properly. In traffic your car can heat without this working.