rough running bmw 540i on 1997 BMW 540i

my 540i is running rough,shifting rough,exhaust white smoke,and smells like fuel mixture is too rich

by in Hesperia, CA on November 30, 2010
2 answers
ANSWER by on November 30, 2010
You really need to get it diagnosed by a BMW specialty shop to see what causing the problems. They should be able to pull out diagnostic trouble codes from the affected modules and be able to estimate the parts and repair cost for you. Zee
ANSWER by on December 01, 2010
PCV valve on back of intake manifold. common fault. diagnostic codes won't show for this fault and unless techi knows these cars he won't know what the problem is,
Related Items:
I have a 1994 BMW 540i. its been sitting for a year or so. I has noticeable shaking and vibration when car at idle. I replaced the engine mounts.It reduced it some. Check engine light on and off cu...
Now the car has a clipping sound, almost like the fan touching something, coming from the timing chain on the rightside bank of the engine. What could this be and what will need to be replaced? The...
I changed the control module and the light won't go off. The car starts but runs rough. What do I need to do.
On a cold start the engine runs rough and has substantial 'tinking'noises coming from near the firewall. As the engine warms up it runs smoother. Any pointers or words of wisdom? The car has previo...
Engine oil leaks commonly develop from both valve cover gaskets, intake manifold, and PCV plate after about 60,000 miles.

Related Content