ok, I warm my car every morning before work (around 10/15mins ), the needle usually went in the middle of 'C' & 'H' of the thermo meter when i got off the driveway, however when I went up to the highway and go around 120km/h, the needle dropped around/below 'C', is that normal? :roll:
but the vent ALWAYS blows out COLD AIR.....even I set the heat to max...
I heard my friend (w/ a 95 4 dr corolla) said he got similiar problem and his mechanic said he ain't got enough coolant, so he refill his coolant and the problem is gone. I wonder how would the problem relates to coolant??
i still think its the open thermostat.....do a search with thermostat....cuz with my explanation it WILL confuse you.....
do what REN did....stick a peice of card board in front of the radiator....it will help...but try using card board that will not melt with water....
I heard my friend (w/ a 95 4 dr corolla) said he got similiar problem and his mechanic said he ain't got enough coolant, so he refill his coolant and the problem is gone. I wonder how would the problem relates to coolant??
When the engine gets to normal operating temperature, the thermostat routes coolant to the heater core to provide heat and stuff. I'd think you would have to be REALLY low on coolant for that to not work at all. Scary.
Incidentally, that's why if your car is overheating in the summer, turning on the heat full blast helps. It's helping to take away excess heat from the engine.
yes edwin.. i have the same problem.. thermostat is stuck on open, so as soon as you get on the highway, the cold air cools off the rad to 0 and since the thermostat is stuck on open.. the engine never warms up. I made some wind covers for the bumper hole and for the one where it says "Toyota" on the front.. car runs at mid temp now and I get heat.. and as an added bonus.. the car runs at 800 rpm rather than 2000rpm because the engine is cold, the choke stays on trying to warm up the car. I'll be replacing the thermostat as soon as I get a chance, just too lazy to get out in the cold and try it.
I have the same problem in my GF Sentra.
I put in the wrong temp. Thermostat :oops:
Maybe some day when I'm really board I fix it
God I Hate That Fuc#ing Car
__________________
"I have to much respect for the idea of god to make it responsible for such an absurd world."
Once my '89 GT-S warms up, whether it be idling or on the road the needle does not drop back down. If your engine runs too cool you will use more gas and possibly contaminate you oil with fuel that never quite boils off. Wear could also be a factor if left for too long.
When I replaced my rad as a preventative measure I also replaced the thermostat with the stock Toyota piece. I have never overheated the car, but once I saw the needle climb a bit to the right of center so I shut off the a/c to cook my wife (we're still married). I must be some sort of freak but I still have the original hoses & clamps on the car. I use Toyota long-life coolant and even open the hood when I park on a hot day to aleviate the hot soak.
IF you want to save the earth....the best way to have less emission is turn the car on....wait 30 to 40sec for the oil to get up the cam area....then drive off to get the car to run at normal operating temperature as quick as possible...so the cat is hot enuff to reduce Nox.
i usually keep the engine running for about 2~3 minute....Cold.
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'89 Corolla GT-S (RIP 1989 - 2003 very sad!)
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