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E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 03-30-2013, 04:39 AM
allthingsbroke&beautiful allthingsbroke&beautiful is offline
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Mein Auto:
z3 occasional slow start

anyone had this problem, my 1999 z3 sometimes slow starting (turning over as if no compression) need to pump throttle and it will eventually start, car is only used occasionally, most times it fires up first time. goes ok otherwise, as I say its not run very often. any info appreciated.
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Old 03-30-2013, 10:34 AM
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Randy Forbes Randy Forbes is offline
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When you get in the car and switch on the key, do you allow the fuel pump enough time to fill the lines and charge the fuel rail with pressure, or proceed right to engaging the starter motor?

The starter motor is the largest electrical current draw in the vehicle, and when it's running, little else will, so while you're cranking away, wondering why the car won't start, the car is wondering why you won't let it have any fuel.

My procedure when I get it the car, is to switch on the ignition (listening that the fuel pump is indeed running), hook my seatbelt, then engage the starter. Vroom!
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Last edited by Randy Forbes; 03-30-2013 at 04:26 PM.
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Old 03-30-2013, 10:36 AM
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Randy Forbes Randy Forbes is offline
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Incidentally, pumping the throttle will have zero effect on a fuel injected engine, and can in fact, inhibit starting.

Now if you have a trio of Weber 45 DCOEs, that's a different story!
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Randy Forbes
1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon
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Old 03-30-2013, 10:40 AM
allthingsbroke&beautiful allthingsbroke&beautiful is offline
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not really thought about that, will do in future, I have another z3 with higher mileage which is not on the road and only gets started occasionally, as long as there is enough battery to turn it over it fires every time, it just seems to sound as if the engine is turning too easily, no kick if you know what I mean, other times it starts straight away.
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Old 03-30-2013, 10:56 AM
allthingsbroke&beautiful allthingsbroke&beautiful is offline
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xj8 engine project

aj-v8 project?
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