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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix. is the premier BMW Forum on the internet. Registered Users do not see the above ads.
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Old 10-21-2004, 10:40 PM   #1 (permalink)
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1985318i is an unknown quantity at this point
I have a 1985 318i. With time, it got more difficult to start when warm, so I did some troubleshooting. I found it was the in-tank fuel pump, and replaced it. It ran better for a few days, now it's doing something new.
If can drive 4 miles away(It runs fine), and park it for about 45 minutes. When I'm driving home the car will die about 1/2 way home. After it dies, it's difficult to restart, but will after some persistence.
When driving on the highway, the car will also have power surges, however, it doesn't die.
Any ideas??

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Old 10-22-2004, 03:24 AM   #2 (permalink)
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clog/loosing power in the fuel system maybe?
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Old 10-26-2004, 11:48 AM   #3 (permalink)
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check the regulator, sounds like the system is losing pressure. Usually when a pump goes out, the regulator dies as well (crap gets in thr diaphram).
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