 OT- Hard starting BMW, Fuel injectors? |
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| jnp914 |
  Feb 2 2004, 10:04 AM
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#1
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Member  Group: Members Posts: 177 Joined: 19-August 03 From: Las Vegas, NV Member No.: 1,046  |
A friend just asked for help in diagnosing his BMW:
-starts fine when cold -starts fine immediately after turning it off -impossible to start after 15 or 20 minutes -starts fine when you wait until the engine is cold To me, sounds like something in the enrichening circuit, blah blah. Any ideas? |
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| rdracrdave |
Feb 5 2004, 03:38 PM
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#2
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Newbie Group: Members Posts: 34 Joined: 5-May 03 From: Cincinnati,Ohio Member No.: 653 |
When I worked at BMW, we would run into this problem occasionally. Usually the check valve in the fuel pump was the problem. The check valve would stay open , (dirt usually), and allow the residual fuel pressure to bleed off.
The complaint was that '" I went into the store for a gallon of milk , and it wouldnt start when I came out". The check valve is replaceable by removing the outlet line from the pump, unscrewing the valve from the pump, replacing the valve and crush washer , and reinstalling the line. Again with new washers. You also should check for vacume leaks , or a lean running condition . this can give the same simptoms. Good luck Dave |
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Posts in this topic
jnp914 OT- Hard starting BMW Feb 2 2004, 10:04 AM
jom had the same type of problem with my 87 325is. tur... Feb 2 2004, 11:59 AM ArtechnikA rick 918-S DuckRyder Does the oil smell like fuel? Feb 5 2004, 10:24 AM si2t3m WAG...
Does this thing have a Coolant temp sensor... Feb 5 2004, 10:35 AM DuckRyder It doesn't have a CTS at least not in the sens... Feb 5 2004, 10:50 AM crash914 My bet, intank fuel pump....or external fuel pump.... Feb 5 2004, 11:58 AM Greg My 1985 535i is experiencing the same problem. Ac... Feb 5 2004, 12:47 PM DuckRyder What makes me bet against the fuel pump and/or che... Feb 5 2004, 02:22 PM Greg Duckrider-
I would agree with your assesment (and ... Feb 5 2004, 02:48 PM
DuckRyder Your 535 is L-Jet (or motronic?) right?
320i is K... Feb 5 2004, 04:10 PM |
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