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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 07-22-2013, 06:54 PM
Dubbedcoastie Dubbedcoastie is offline
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Location: Traverse City, Mi
 
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Mein Auto: 86 ES
Exclamation Coolant Issues

I have a 86 es. i had a coolant issue this weekend and had no choice but do the egg white pepper trick. Yes it works, yes it worked for me. I got the leak to stop and drove to the nearest gas station and poured in a tub of bars stop leak just to make sure i could get it home.

I got it home today and flushed the system with a hose. Removed all hoes, even the thermostat and ran cold water thru everything. I replaced all hoes to right places and filled up with 50 50. Now when it gets up to temp it starts to boil. I have no blockage in the radiator or and i know the water pump is pumping. Anyone have any idea on what is going on ? it acts like its building up pressure. i made sure the the hoses are un clogged.

Thanks, John
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Old 07-22-2013, 07:51 PM
Dubbedcoastie Dubbedcoastie is offline
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update. Both upper hoses are crazy hot. Lower hose is hot on the top, but cold on the bottom. Radie is also cold, not that warm
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Old 07-22-2013, 08:58 PM
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BigBoy740il BigBoy740il is offline
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Mein Auto: 1989/1991 E30; 2000 E38
Re: Coolant Issues

How hot did you car get? Did the needle go into the red or did the car stall? I would try a correct bleeding procedure to ensure that you removed all air from your system, that your thermostat is working, and your water pump is cavitating. Use a rolled up news paper to check your thermal fan clutch for proper operation with engine cool and hot. If all this checks out ok, do a chemical test on your cooling system to see if you blew your head gasket. Good luck.
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Old 07-22-2013, 09:05 PM
Dubbedcoastie Dubbedcoastie is offline
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Mein Auto: 86 ES
car did get hot, almost to the red.. i would think if the head gasket was bad it would bubble all the time. i have no thermo in it right now and its stright water from the hose. I know the fan takes off hard but slows down after a min or so. i stoped it with my hand on accident lol.
i poped the heater core hose off to allow air to come out and it burped a lot. Bleeder screw is old and rusty, i kinda afraid to try and loosen it.

The more i read the more i think i have a huge air pocket in there not allowing the water to go where it should. when i drove home today i had a small leak come back between the water pump and the block. It was the same leak i had before. Thanks John
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Old 07-23-2013, 07:38 AM
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toybuilder toybuilder is offline
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Mein Auto: 89 325i 2dr&DucatiMonster
Sounds like you need a water pump .You need to keep a thermostat in the system and you need to free up your bleed screw or you'll never get all the air out .You might as well do the timing belt too though you can just replace the pump if your careful when you remove it.Check your oil for water the dipstick and under the filer cap ,if you don't see any white residue your head gasket is likely OK I'm assuming this overheating thing only happened once.Also I recommend replacing the front engine seals as well.
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