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Old 10-01-2005, 12:06 PM   #1
collector
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overheating

someone please save me. i have a 1999 328ia that overheats. first my top hose neck broke so i changed the hose and neck and bled system. ran the car for 20 min it was fine. gave it to the customer 45 min later the car overheated on the highway. Then we changed the thermostate and bled the system once again. ran the car for about 45 min. everything seemed fine. gave it to the customer. then again it overheated on the highway. Then we changed the water pump although it seemed to be good , bled the system again. This time we drove the car for aprox 1hour -2hours everything seemed fine. the customer ran the car in the area for about an hour before going home. he just called to tell me as soon as he got home the car just overheated.please help
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Old 10-01-2005, 04:55 PM   #2
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Did you check all the hoses for the cooling system and the rad it self. The car could have a pluged rad or heater core that can cause the car to over heat because the coolant can't circulate through the system so check that out sounds like you need to dig depper into the cooling system. Sometimes you need to do a double take on stuff like this good luck I hope this can give you some help and hope you find the problem and fix it.
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Old 10-03-2005, 05:06 PM   #3
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there was a recall having to do with the fan belt back in 01. I'm not sure if it would apply to your situation, but might be worth investigating...
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Old 10-03-2005, 05:42 PM   #4
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do you guys think it could be the headgasket?
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Old 10-04-2005, 10:13 PM   #5
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Headgasket ? if you see white smoke out of the tail pipe that could mean you may need a headgast its possible.
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Old 10-12-2005, 04:59 PM   #6
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Sounds like the radiator,had a similar problem the neck of the radiator where the hose connects was cracked had to replace the whole Rad.
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Old 10-13-2005, 01:43 PM   #7
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im guessing your a mechanic? did u pressure test the system? any visable leaks? mildew smell in cab when heater on? it might be the fan clutch or maybe the fans aint kicking on when sposed too. could be electrical. i have worked at ford and cadilliac and now at lexus and there isnt any codes at all for anything electrical??
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Old 10-19-2005, 11:48 PM   #8
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finally pulled the plugs 3 were washed out was head gasket should have checked first but would not overheat on me . was very small leak . sent it out to chucks he changed motor good so far
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