Air In My Injector Lines - BMW Forum - BimmerWerkz.com
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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#1 (permalink) Old 02-01-2005, 08:48 AM
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My 1980 320i was started after 2 years downtime
now it idles rough and air bubbles can be seen in the return line from the warm up regulator to distributor at one time then in either the #2 or #3 injector line
help
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#2 (permalink) Old 02-01-2005, 08:00 PM
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it may clear up on its own, but if not try running some quality fuel system treatment through, and see if that helps, if not you may have a major fuel contamination problem. In that case you would have to replace just about the whole system
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#3 (permalink) Old 02-02-2005, 03:31 AM
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Quote:
Originally posted by gravney@Feb 1 2005, 06:48 AM
My 1980 320i was started after 2 years downtime
now it idles rough and air bubbles can be seen in the return line from the warm up regulator to distributor at one time then in either the #2 or #3 injector line
help
[snapback]283979[/snapback]

check your fuel presure regulator, its vacume powered and the rubber lining might have cracked durring the down time and now your sucking air into the fuel, or you have a hairline crack somwhere in your line or on your fuel rail... but im leaning more to the regulator.

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