I have a problem with my car over heating at first i thought it was the water pump cause it was on its way out so i got it replaced but its still over heating. also with the radiator cap i know u have to push down on it when u put it on but with mine you dont have to & also i was wondering if it should have an overflow container cause mine doesnt will they affect the car & make it overheat?
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Re: cooling system on 1981 mazda 323 bd1051
If the car heats up real bad and then the temp drops suddenly, the problem is the thermostat. However, it could also be a plugged radiator or a lazy fan. If you have a mechanical fan with a thermal clutch, you need to see if it is working. Electrical fans are easy to diagnose because they eventually come on or they don't.
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well, I hate to tell you, but they never made such a beast. 1994 Mazda 323 , with a 2.0 lt engine, and also no v6 was ever installed in a 323, now if you have the original engine that will be a 4 cylinder 1.6 liter timing mark on the crank and cam is at 12 o'clok., the cam says up, and you line up the mark at 3 o'clock, to the block, i hope you changed the water pump, coolant and rolers ?
step 1check for spark take off coil lead then unscrew plug pop the plug back into the lead and hold it to the block turn the car over if it sparks then you know there ok step 2 fuel... turn on reds on dash the listen out for a buzzing sound this would be fuel pump if no sound fuel pump could be faulty hence why car won't start!
No this wont cause an overheat problem. Check the coolant level , check to see if the fans come on after it heats up. when the car is warming up you can check the thermostat, by touching the top radiator hose, after a few minutes the hose should get hot, this indicates that the thermostat opened up and is working. If it doesn't replace the thermostat. If it doesn't over heat until you start driving , then suspect the water pump. The impellers can slip on the shaft and not have enough flow to keep it cool.
There are few things that can cause the vehicle to heat. Please check the following to resolve the issue:
- A faulty water pump can cause the car to overheat. If the water pump is faulty the coolant will not circulate properly on the engine which can result to overheating. You will need to have it replaced if that's the case.
- A worn out or damaged radiator hose. Just a small hole on the hose can cause the vehicle to overheat so have it replaced.
- A weak radiator blower motor. If the blower motor is weak it tends not to cool down the engine so have the blower motor replaced.
These are the few things that can cause the car to overheat so please have the following be checked.
Hope this helps and thank you for using FixYa! Have a good one!
Possible cause ;
1. Water pump
3. Bad head gasket.
4. Low coolant level.
Try to replace thermostat first , this way you illuminate thermostat and coolant level , you'll have to ad coolant after replacement and purge system.