From digest.v9.n996 Wed Feb 24 08:10:34 1999
From: "Dan, Marilyn, Anathea & Phillip Patzer" <bmrfamly_at_nwlink.com>
Date: Wed, 24 Feb 1999 02:23:51 -0800
Subject: cold start trouble solver
The following method works on all BMW's using a cold start valve.
On tii's always allow 5-7 seconds with key in run position before
cranking, as this allows fuel pressure to build and stabilize. Cranking
before this only runs down the battery and grinds on the starter and
Sounds like lack of cold start primer shot. For a test, get a pair of
miniature female spade clips and build a test harness for the cold start
Disconnect the blue plug fromt the cold start valve and clip a ground
wire to one lead (-), and a hot (+) to the other while a friend is cranking
the engine over.
If adding fuel fixed the problem, by-pass the thermo-time switch mess and
relay a cold start system from the parking lights, or something else you
If adding fuel doesn't help, see if installinng one warm spark plug does.
But that's food for another article.
Dan Patzer the CyberWrench from BIMMERS ONLY
72' tii touring K75RT 85' 732i R1100GSA R850R
O.E.M. parts, Independant service since 1967
12724 Marine Drive, Marysville, Wa. 98271
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