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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.

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Old 02-07-2010, 10:14 PM   #1 (permalink)
68th gear and shifting
 
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Computer problem?

Hey guys,

I got 1987 325 vert with an engine that has been replaced.
Here's my question:
Whenever I drive the car, after about 5-10 min on a highway, i feel a sudden loss of power that lasts about .2 of a second (just enough to feel it) and my check flashes (I always have a check for washer fluid as my cable is cut).
I am under impression that all the warning lights have been turned off so who knows what's wrong there, but it did pass CA smog and drives fine.

Anywho, i am afraid to be stuck on a highway because I lost power.
Well, yesterday, when I drove it again, the lights inside the car were flickering and when I finally parked it, the headlights flickered heavily and went back to normal.

Any ideas?
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Old 02-07-2010, 10:56 PM   #2 (permalink)
OMFG another one!?
 
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As a couple of guesses, loose connections or erratic relays?
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Old 02-07-2010, 11:09 PM   #3 (permalink)
68th gear and shifting
 
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how can i check that?
im a maintenance n00b
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Old 02-07-2010, 11:30 PM   #4 (permalink)
OMFG another one!?
 
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Start with the relays; they're in a box which makes testing kinda easy.
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Old 02-08-2010, 07:20 PM   #5 (permalink)
You Can Has A Custom Title!!
 
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iggy,

try to find out if the motor that was replaced was the correct motor for that make/model/year.

also, like tommy said, check the fuses/relays, then go from there to the alternator. The flickering lights is usually an indicator of a bad alternator or incorrect alternator.

Glad to have you back.

Dave
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