Question about 2002 BMW 3 Series
I have this wierd problem with my 320d '99 and nobody here in Bulgaria seems to know the reason.
After I drive and go to neutral speed (it is manual gear box), and even more - when I hit the breaks and begin stopping the car, the engine starts to shiver. The harder I hit the breaks or stop the car the more obvious is the shivering / shaking of the engine. After the car is completly stopped and idle for 2-3 seconds the shivering / vibrations of the motor disappears and starts working good.
Could this be a weared engine or something? Because the car when left idling shows some light smoke with strong diesel smell. I guess this is bad fuel burning, because bad engine compression? I dont understand much. I havent noticed oil or much water disappearing.
thanks in advance to whoever helps solve the strange problem.
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Posted on Jan 02, 2017
SOURCE: V V T i D4 toyota shivering
It may be the valves carboning up because of the octane rating of your petrol. I had a 2003 Toyota Caldina with the D4 motor that was so annoying because it kept missing at highway speed and shuddering at idle. I had it carboned cleaned twice through the valves but after that no difference changed plugs no difference talked to toyota new zealand and they said our octane rating 91-98 RON was to low it should only run on 103 Ron like in japan but we dont have it here so I sold it quick! Maybe your problem I dont know it might help.
Posted on Mar 13, 2009
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
if your vehicle isn't a convertible and the newer model (E90) the idle speed should be able to be increased. your vehicle has valvetronic. It doesn't use a throttle valve in the typical manner. there is a motor that changes the valve lift of the intake valve (this system takes the place of how a typical throttle works); if you have an E46 the older style 3 series the idle speed cannot be changed. An easy way to tell if you have an E46 or an E90 is that you have a start-stop button with the E90 and the key is a remote that pushed into the dash.
Posted on May 03, 2009
SOURCE: idle problem
check the airflow meter it may be stuck and make sure the electrical connection to it is not loose and also check the hose leading to it are not loose or cracked they tend to crack at the bottom where you cannot see it unless you remove it and check
Posted on May 29, 2009
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