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Re: milky sustance in radiator
It is motor oil toyotas are not made to run hot u have a blown head gasket it is also a good idea to replace ur timing belt while making the repair and flush ur radiator before runnning motor after repair
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This could result from a thermostat which is stuck closed, or a failed coolant temp sensor not allowing the radiator fans to run when they should, but I think you have a blown head gasket. Overheating is a classic sign of combustion gases getting into the coolant. The pressure also forces it out of the overflow.
Warm up your engine a little, about half, and remove the radiator cap by putting a towel over it first. Then let the engine keep idling until hot while you look down the filler neck into the radiator......carefully.
If you see white bubbles like dry ice, that is a failed head gasket. If not, have a mechanic do a test for combustion gas in the coolant with a gadget like this
1. Thermostat. Replace with an OEM one from the dealer. 2. Radiator. Make sure it's not plugged up. 3. Radiator Cap. There cheap from the dealer and I consider them a maint. item. 4. Water pump. How many miles are on it? 5. Fan Clutch. Make sure it has some resistance
6. Temp. Sensor for the gage.Have you checked that the electric cooling fan is turning on when the
engine reaches operating temp? A faulty coolant temperature sensor will
not trigger the fan, or the fan itself or fan relay could be shot. You
might also have a head gasket leak that is not into the cylinders, so
it would overheat without causing milky oil. Another possibility is a
clogged radiator -- with 15 years on the vehicle, it's quite
possible. Have the cooling system pressure checked, and replace the
radiator cap for starters -- if the radiator cap isn't holding pressure,
overheating will occur rapidly.
There are no petcock valve on toyota camry.
What its a plain radiator cap that has a valve in it, pressure can be activated at certain point and the coolant goes through the coolant reservoir.
You mean the radiator drain plug? you would see that plug underneathe that radiator assembly, wing nut type plastic made, can be loosen by hand or a pair of pliers!
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Several things ... best guess, in order:
1. (very likely) Radiator fan is not blowing (turn on car and a/conditioner. When compressor kicks in, the radiator fan must blow). If it ims not blowing, the radiator fan motor may be burned out ($40).
2. Check / replace "cooling fan" fuse ($1) and / or "cooling fan" relay switch ($7).
3. Could be (not likely) thermostat sticking shut. Replace thermostat ($20)
4. Could be radiator hose collapse (not very likely) ($18)
5. Radiator clog or hose leak (possible)
6. Head gasket broken (not likely unless you don't fix current problem) ($150)
The more detail of the symptoms, the better we can assist you.
So far you did the right things in the right order. If you have a pressure cap (looks like a radiator cap to the rear side of the engine. Dealer $15) change the pressure cap also and then flush the radiator. A sure sign of blockage is when you open the radiator look around inside the top if you see brown or green kind of gunky stuff. Flush the radiator anyway.
If after the radiator is flushed and you still overheat, the next posibility is the head gasket. But don,t worry yet, follow these steps and observations. (this goes for 93 camry V6 also, I have one)
change radiator cap and pressure cap where applicable
Change the thermostat.
Some cars may have a thermo switch which ramps up the fan(double fan designs). Change that if applicable.
flush the radiator and engine block
change waterpump AND headgasket.
The temperature guage can tell you what you need to know.
If the guage starts to spike up after stopping, pausing in traffic or while in gear not moving but it is fine while driving along the highway, then you are having a blockage in the cooling system. FLUSH SYSTEM.
if there is a bubbling sound in the engine when you turn it off, FLUSH SYSTEM
If the car overheats at anytime, anywhere and it drinks coolant like a fish, then you my friend have a headgasket problem. Change waterpump and head together