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check the earth wire from the battery there maybe a fault with the electrics. check the earthing points and connection to the battery.clean earthing points and connections. electric faults could be anything but these are the most common things to check. also if you have a meter check the battery check its volts before starting engine and check after the battery that is fully charged should read 12.04 or a bit higher. and with engine running it should be 14.00 volts can be higher by a bit. if the battery is fully charged and lower than 12 volts it has a problem if the charging from the engine is lower the 14v then they could be a problem with the alternator. if you have a drop out while driving parts of the system will drop as the voltage has dropped below it working rate. abs is 11 volts or lower will cut this out and say its not working and so on with other devices.
Generally speaking, you can run the engine with or without the heater connected and it should make no difference in cooling the engine. I wonder if the engine is actually running above 220 degrees. Do you know where the steam or smoke is coming from ? It could be a leak rather than actual overheating.
Have you fitted a new alternator and not secondhand ones from a scrapyard ,without taking one of the old ones apart and seeing whats wrong with them then its difficult to diagnose whats causing them to fail but i suspect that secondhand units are being fitted hence the failure rate.
It could be the Ignition Switch. If, when it cuts off, you notice your gages, etc go off, then you are losing ignition power. If not, then maybe I would look at the crankshaft position sensor, etc. This should through some sort of code though.
Sounds like bull sh*t to me. the only thing to look for is constant air bubbles when the engine is hot and the radiator cap is left off (this would mean you had a leaking head gasket. If there was to much pressure the the radiator cap would leak steam before anything else blows. Are these secondhand radiators your trying? as they sound like rubbish if the hose blew it's most likely from a blocked secondhand radiator which needs to be repaired. Don't trust dodgy car wreckers. cheers
The problem has been successfully completed.
The problem was that the battery fitted by Wal-Mart was not secured to the car, subsequently the negative terminal was touching the body of the car at times, this caused the entire electrical system to shut down and of cause when you moved the battery to fit jump leads the car was okay.
Hope this explanation makes sense.
Thank you for your help, it is nice to know someone is out there.