Overheating problems i have a 2005 saturn ion 2 and weve had problems with the coolant resorvoir and weve replaced it and it has been working. until the other day,it over heated and i put some water in the coolant reservoir and then it over heated again. then we stopped to let it cool down and it didnt start back up again. its been about 4 days and we have no clue what it may be. anybody might know anything or how to make it work.

SOURCE: '97 Grand Prix 3.1L...Head Gasket? Manifold? Control Module?

Hi Melody- it feels like you could be right. it feels like your car was well worn when you got it. common causes of overheating are coolant too low, which is what i suspect was the case when you first got it. a stuck closed thermostat not allowing coolant to circulate. i assume you have an electric cooling fan- check to see if your fan motor is fried. you could also have large air pockets inside your cooling system which can give false coolant level. when you pour coolant into your radiator rather than your overflow tank, you introduce air into the cooling system that has to be purged by allowing the bubbles to work their way out through your radiator by squeezing your coolant hose you can assist the escape of these air pockets (with engine running) evidence of a cracked head can be presence of coolant in your engine oil-pull your oil dipstick and look. you say no evidence of coolant leakage, however, look underneath your car and check to see if there is coolant splatter surrounding the underside. it maybe that your car is maintaining enough pressure to run but when engine temps reach a point to where the radiator fan should kick on, and/or the thermostat should open to allow coolant flow and these things dont happen-the result is what you describe with no power and overheating that will eventually overstress your head(s) warped heads can cause the symptoms you describe. you can perform a compression test to help pinpoint a blown cyl. an idea for fixing your car for cheap would be to take it to your local high school auto shop. the only way kids learn the trade is by subject cars. ill bet you can even arrange them to pick it up. the will fix your car for cost. you would only need to supply whatever parts are needed to make the repair. its a win-win situation because they get to learn by fixing your car and you get to use your car for doing mommy things without fear of labor fees. which are around $120/hr. I hope i have helped you with your car good luck!

SOURCE: Thermostat on 2004 Honda Accord not opening, No Heat

is the heater core leaking?can you smell antifreeze?

SOURCE: 1999 GMC Jimmy Running Hot w/ Engine coolant reservoir empty

Hi
The problem is most likely 90% head gaskets but could be intake manifold gasket leaking too. Intake gasket has to be checked when intake is removed. Might find problem there if not continue and remove heads. Bars Leak will not work.

SOURCE: I drive a saturn ion 2005 and the coolant light

it has a coolant sensor in the reservor on the bottom maybe bad you can unhook it hook it back up still on replace it.

SOURCE: Every 3 days, the engine

REPLACE THEMOSTAT SOUND LIKE TRYING TO STICK CLOSE.