5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
Im hoping someone could help me... A lot of times i go out to my car to start it up and i have to turn the key for like 3-5 seconds or put the gas down to get it started... I was wondering what i could do to get rid of this problem... i run 93 octane (i know this happens with 89 a lot) could it be the spark plugs or something that need changed?
i dont think it would be your plugs.. perhaps your losing pressure at the pump.. could be injectors as well. not sure bout over there but here in beaver country we had a sticky fuel mix up where the gas got contaminated and clogged the injectors.. just a thought.. but yeah sounds like its struggling for pressure..
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This brings up a guestion. Does the fuel pump run with the ignition switch in run with the engine not running? And are there more then one filter. My 540 starts right up but my Honda ( can I say that here?) is slow to start and getting slower.
Maybe an answre to debumb's trouble could help me with that vehicle.
I drive a 90 E34 and it does the same thing, to the point of where I need to apply gas almost never happens but it is always a 4-5 second key turn to start it!! When I first bought my car about 16 months ago I noticed this problem or situation adn took it to our Mechanic who does all our work for us and he is very good. but he says it will always do that and that all E34's do it, he siad its like a boat, it will always start with a long key turn but it will run great once it starts. If there is some new way to fix this, I would love to know, but its fine without it!!
possible problems: bad gas, need plugs cap and rotor, dirty injectors, pressure loss at fuel pump, dirty fuel filter and last but not least --- VALVE ADJUSTMENT ---
Valve adjustments were a required step with all Inspection 2's and in my opinion should be done every 50K. Some people ignore having that done and some places don't do it when you take the car in (even though they charge you for it). You could probably stand a good tune up (plugs,cap,rotor,maybe plug wires,fuel filter and valve adjustment).
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