Question about 2000 BMW 7 Series

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I have 2000 740il 4.4. Engine light, ABS and Traction control light stays on. Lately, whole engine shakes when start cold and once the rpm come to normal or idle and I press gas, the engine missies. If I put in drive and start to roll, Engine light srart to blink and whole front end shakes as though only 1 or 2 cylinders are running. Once it gets warm for about 10 mins. it runs as though it does not have any problum. Some suggest, vac. manifold, or Air Mass Sensor, anybody who had this issue please let me know, it would be a great help.

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  • BMW Master
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Go to auto zone they check for free, then will know what's is next.

Posted on May 05, 2017

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Posted on Jan 02, 2017

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SOURCE: idle problem

Try to disconnect the Air Flow Meter. It is the first plug just before the air filter/air intake box. If this improves your situation you will need to source a new or aftermarket Air Flow Meter.

Posted on Apr 28, 2009

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SOURCE: have two, first my front defrost does not get hot, or the heat does not get how unless I am driving the car, when it is idle it blows out cold air, but once I start driving it it blows out hot, but wh

My first challenge since I became member of this site! What does your temperature gauge tell you when this is happening? For the seat, take it off disconnect the harnesses and check the cables underneath, you have a short-circuit.

Posted on May 06, 2009

  • 580 Answers

SOURCE: Hi I have 2000 BMW 320i. Lumpy idle when cold and oil light for

Your oil is a little low, and the timing may be off a bit but if it smooths out after warm it is probably ljust
low oil.

Posted on Jul 08, 2009

  • 636 Answers

SOURCE: 2001 BMW 325i problem: Car runs very rough, but no warning lights

Sounds like a fuel problem , have you changed the fuel filter in a while ? could be the knock sensor or the knock sensor module needs to be replaced.

Posted on Jul 28, 2009

  • 1 Answer

SOURCE: bmw E30, 316, 55 kw, 1987, M10 with carburater

Sounds like you're running rich.

First, change the air filter, and check that the air intake isn't blocked somewhere.

If that doesn't sort it out, it's the carb. They have an automatic choke (cold start), which could be sticking on and causing problems.

One thing it isn't is the timing belt (sorry Satanscash) as this engine doesn't have one... and even if it did, failure of the belt results in a very dead engine!

Posted on Jan 20, 2010

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