Water jackets are the hollowed out spaces in the engine block and head through which the coolant flows. In water jackets, waste heat generated by the engine is picked up by the coolant. After flowing through the water jackets, water flows through the radiator. The radiator is basically a heat exchanger which, through a system of tubes and fins, transfers this waste heat from the coolant to the atmosphere. After the water is cooled in the radiator, it flows back into the water jackets of the engine to pick up more waste heat.
In the radiator, coolant recover tank, heater core, and inside the engine water jacket.
water can freeze. anti freeze can not.
water jacket saves us from the force of the water we are in.
Probably a sender somewhere in water jacket. Look around water pump/gooseneck area. Temp. sending unit on some Cavaliers is located on the back side of the engine (near the firewall) between two heater hoses. Look for a wire plugged into it a little to the drivers side of center of the car, a little below and between two hoses going from the engine into the firewall.
the seepage from the radiator. A rotted/damaged radiator core, A split seam between the radiator core and the tank, A cracked tank, A loose hose clamp, A bad radiator cap.
there is supposed to be water in the radiator. your radiator is supposed to be evenly mix 50/50 with radiator fluid and water, preferably distilled water.
with the engine cold, remove the radiator cap ( the one that states do not open hot). is there coolant in it? if there is then start the engine and look for any large "burps" inside the radiator, rev the engine to 2000 rpm if the gasket is "blown" between cylinders and not to the water jacket a compression test will be needed
On the older 4.0L Ford there is a plastic shroud directly under the radiator. Remove it (not hard) and you should find the drain petcock. It is easy to spot and is on the passenger side of the radiator.
There is a water reservoir tank that goes to the radiator that you can add the water to.
Showerproof beads water off but is not puddle-proof
Usually you get oil in your radiator when you blow a head gasket and oil leaks into your radiator. Blown intake gasket is also possible, as well as a hole in the engine's water jacket (very uncommon). Also, if the vehicle's transmission cooler coil is internal to the radiator, a leak from it may be possible (most tranny coolers are external for this reason).
It could be thermostat, radiator or water pump.AnswerBad or no thermostat, bad water pump, plugged radiator, plugged water jacket, loose fan belt, bad clutch fan, radiator too small for application. Also try bleeding the coolant system of air.is the coolant fan electric or manual?What make and model vehicle is this 305 in?if its a 3rd gen firebird or camaro, check for blockage between the condenser and radiator[air blockage] leaves and junk get trapped in between the two pieces. flush out with water hose or air pressure. good luckAddition:I had a 305 that had a thermostat stuck completely open, it overheated because the coolant went through the radiator so fast it didnt get cooled off. For like $20 its a good first step.