Question about BMW 3 Series
Common issue at the shop (i'm a ford technician), here is what I do to correct it.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Mar 11, 2009
near the throttle body there is an adjusting screw(flat head) for air fuel mixture, it's on a deep cavity sometimes with a cover, adjust counterclockwise will increase the idle.
Posted on May 07, 2009
The 1997 Sebring convertible has rocker panels (the metal that goes from front to back wheel well and directly under the doors) that have five drain channels each. The sloshing noise occurs when the drain holes plug up and a rocker panel fills up with water. Often, the water will then leak into the right rear footwell, soaking the carpet. A quick fix is to locate the drain holes and run a flat (unused) twistem-tie (they come with your trash bags) through each hole several times. Commonly, doing so will result in a deluge of water, along with spider web parts, leaf parts, and whatever else washed into the rocker panel fromo the rear window.
To find the drain holes, just 1) lie under the car with a flashlight, or 2) sit alongside the car with one of those mirrors that come on a telescoping stick. Since I don't like to lie in dirty water, I use the mirror to guide my twistem-tie (or ice pick or spring wire or whatever) into each hole. NOTE: the drain holes are flat and run at a 30 degree angle from back to front on the right side and from front to back on the left side.
Posted on Jun 08, 2010
I am having a similar problem on a 2003 Volkswagon Passat 1.8L 4 cylinder manual engine. My batter (after 10 years of service) died about a month ago. When the engine is cold and I start it up the engine (if I do not carefully add gas to rev the engine) will idle at around 200 to 400 RPM and then stall. The problem does not occur after the engine has been going for more than about 90 seconds. No check engine light is on. Ideas anyone?
Posted on Oct 05, 2012
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