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A little weird problem. My engine has been running cold when I'm driving but when I'm at idle the temp. goes back to normal. My brother had my car for 4 days while his truck was getting fixed and it did it to him a couple of times. What could it be? I checked the coolant level and everything is fine so what else could it be. A bad thermstat or something. Any help would be great/
more than likly its gonna be your thermostat. Thermostats dont just keep the engine COLD they also keep the temp UP. It makes it equally hot and cold. Its a very simple quick fix.
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shit run cold like homeboy said themaomiter but when the themamrnter is broke usuly it says runnning hot but shit the colder it is the better it runs for raching check the thm.... but if u touch the head and its not like wow hot then shit run the bitch it will run good i use to drag race and the cooler the moter the better it runs pimp keep it real with the gen 4 camry the pimpin been pimpin nuttin but a caddy right every day wha wha
shit run cold like homeboy said themaomiter but when the themamrnter is broke usuly it says runnning hot but shit the colder it is the better it runs for raching check the thm.... but if u touch the head and its not like wow hot then shit run the bitch it will run good i use to drag race and the cooler the moter the better it runs pimp keep it real with the gen 4 camry the pimpin been pimpin nuttin but a caddy right every day wha wha
The others are correct. Your thermostat is stuck open. Change the thermostat; it's an easy fix. If you do it yourself, it should cost you about $15 for the thermostat and gasket (actually an o-ring), plus a bit of coolant. Be sure to bleed the cooling system thoroughly after replacing the thermostat. You should do this soon. Constantly running cooler than normal engine temperatures means you are running a richer mixture all the time. Fuel mileage will suffer greatly and excess unburned fuel from the cylinders will pass through the exhaust system, eventually ruining the catalytic converter. Fix this now while it is a cheap fix.
shit run cold like homeboy said themaomiter but when the themamrnter is broke usuly it says runnning hot but shit the colder it is the better it runs for raching check the thm.... but if u touch the head and its not like wow hot then shit run the bitch it will run good i use to drag race and the cooler the moter the better it runs pimp keep it real with the gen 4 camry the pimpin been pimpin nuttin but a caddy right every day wha wha
Eloquently put ( ), BUT incorrectly stated. The cooler a car runs may improve performance to a point. However, running a car cold can cause damage.
A cold engine is an inefficient engine. Too cool an engine can also lead to inefficient engine lubrication, which in the long run can lead to engine failure.
Quote:
Originally Posted by JLcamrydave
but shit the colder it is the better it runs for raching
The others are correct. Your thermostat is stuck open. Change the thermostat; it's an easy fix. If you do it yourself, it should cost you about $15 for the thermostat and gasket (actually an o-ring), plus a bit of coolant. Be sure to bleed the cooling system thoroughly after replacing the thermostat. You should do this soon. Constantly running cooler than normal engine temperatures means you are running a richer mixture all the time. Fuel mileage will suffer greatly and excess unburned fuel from the cylinders will pass through the exhaust system, eventually ruining the catalytic converter. Fix this now while it is a cheap fix.
Mike
are there different kinds of themostats and if so what would the difference be (aren't there ones that have a higher rating or something?) How do you bleed the cooling system
shit run cold like homeboy said themaomiter but when the themamrnter is broke usuly it says runnning hot but shit the colder it is the better it runs for raching check the thm.... but if u touch the head and its not like wow hot then shit run the bitch it will run good i use to drag race and the cooler the moter the better it runs pimp keep it real with the gen 4 camry the pimpin been pimpin nuttin but a caddy right every day wha wha
ehh took me like five times to understand what you were saying. punctuation would be nice
I have a similar problem but I didn't want to make a new thread for it. Instead of running cold though, I think my car is running hot. See, when you get out of the car after you've been driving it, it literally smells like something burning. I think the temp gauge/sensor might be broken though, because it takes a long time for it to come up to a normal level, and it never goes above halfway. Also it idles really high (I'm talking 1200-1500 rpm) when you first start the car and then you have to wait five minutes or so for it to start coming down. Maybe this is normal, I don' tknow. I don't think it's dangerous, but what should I do?
are there different kinds of themostats and if so what would the difference be (aren't there ones that have a higher rating or something?) How do you bleed the cooling system
I would just ask for the standard temperature thermostat if you are going to use an aftermarket one. If you go to the dealer, they will give you what the car came with; that would be my recommendation. Don't forget the gasket.
As far as bleeding the system after replacing the thermostat: Fill the radiator back up with a 50/50 mix of coolant and antifreeze. Some people recommend distilled water, but I have never seen a professional tech use anything but tap water. Take off the radiator cap and leave it off. If you can, park the car with the front end slightly higher. Facing it forward in the driveway should be enough. Start the car and turn the temperature setting all the way to hot and set the outflow to the defroster setting. Now just start the car and let it run and watch it warm up and watch the air bubbles come out the radiator where the cap normally goes. You may want to squeeze the upper radiator hose from time to time to get more air out, but be carefull, it will be getting pretty hot. You will probably have to run the car about 45 minutes to an hour this way to get most of the air out. Then shut the car and install the radiator cap. Then take it for a ride. Check the coolant level the next day when the car is cool. Don't be surprised if you have to add a little more coolant. This is normal as a bit more air will continue to bleed out as you drive it. It's not hard; just take your time.
I would just ask for the standard temperature thermostat if you are going to use an aftermarket one. If you go to the dealer, they will give you what the car came with; that would be my recommendation. Don't forget the gasket.
As far as bleeding the system after replacing the thermostat: Fill the radiator back up with a 50/50 mix of coolant and antifreeze. Some people recommend distilled water, but I have never seen a professional tech use anything but tap water. Take off the radiator cap and leave it off. If you can, park the car with the front end slightly higher. Facing it forward in the driveway should be enough. Start the car and turn the temperature setting all the way to hot and set the outflow to the defroster setting. Now just start the car and let it run and watch it warm up and watch the air bubbles come out the radiator where the cap normally goes. You may want to squeeze the upper radiator hose from time to time to get more air out, but be carefull, it will be getting pretty hot. You will probably have to run the car about 45 minutes to an hour this way to get most of the air out. Then shut the car and install the radiator cap. Then take it for a ride. Check the coolant level the next day when the car is cool. Don't be surprised if you have to add a little more coolant. This is normal as a bit more air will continue to bleed out as you drive it. It's not hard; just take your time.
Mike
should I drain the system first and put something underneath???
It all depends upon when you did it last. If you haven't drained it for a while you can do it now. I drain and refill every 2-3 years or about 30,000 miles, whichever occurs first. If you have done it recently, I would just remove enough to get the radiator fill amount to a bit below the thermostat level. Or you can just unbolt and remove the thermostat and it's housing and let it leak out of there. It's a bit more messy this way, but not really that bad. When the thermostat is back in and before you start the car, you can just pour some warm water over the thermostat housing area to clean what has spilled out and on the engine. Your choice.
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running cold
every day wha wha
), BUT incorrectly stated. The cooler a car runs may improve performance to a point. However, running a car cold can cause damage. 
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