2002 mazda millinia losing coolant out the overflow tank & overhe
2002 mazda millinia is losing coolant through overflow tank and causing car to overheat. The fan on passenger side of car sounds like brg. are out when I spin with my hand. If one fan goes out will it cause the other to stop working, or is there a relay that could cause that and how do I check the relay?
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Re: 2002 mazda millinia losing coolant out the overflow...
Martin, You should replace your fan motor. One fan is for ac and one is for normal driving without ac. Your car is getting to hot. Hope this helps, these fans are available aftermarket as a whole assembly. Check out ebay I have seen them on there I have a wholesale company I buy them through.
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you have a blown head gasket.. doesn't have to have coolant in the oil for a blown head gasket... if hoses are rock hard when running then you have exhaust leaking into the coolant via a blown head gasket...
Start by checking your coolant level-both the radiator (when it's cooled enough to remove the cap) and the overflow tank. The radiator should be full with clean-looking coolant, and the overflow tank should be about half full (it has a cold mark and a hot mark on it). If the coolant is correct and not leaking or losing fluid, then check your cap for a good seal-the coolant is pressurized when car is running, and an old cap can leak pressure. Do your radiator fans cycle normally? They should come on when your coolant reaches a set temperature. Also, is your coolant more than two years old? If it is, I'd change it and consider having the radiator and engine flushed to remove any build-up of sediment or rust, scale, debris. Which would also be a good time for a new thermostat-cheap and necessary maintenance items. As for possible worn parts or needed repairs-well, your water pump might be something to keep in mind if the above mentioned checks don't stop the overheating. Hope you get it fixed soon before it gets worse-overheating is very bad on these aluminum head engines.
you may have too much coolant in it... oddly enough,. I've seen entire cooling systems (and even the engine get replaced) and it still over heated -- when in fact it was an all of a sudden the car required a larger radiator -- and the (freaky) problem was fully solved,. in your case it may be a larger holding/ overflow tank?
Whenever you overheat once, then the thermostat must also be replaced. It is operated by the expansion of a contained wax pellet, and overheating causes permanent loss of wax. However, you may also have caused a head gasket leak now from heat warpage. If the thermostat does not help, then borrow a cooling system pressure checker from a place like Autozone, and see of it holds pressure for 5 minutes after pumping it slightly above cap rating. Then start engine and see if it is steady or oscillating from 1 cylinder leakage.