What is your question?
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What is your question?
At first I thought it was the engine; however, it appears to be something under load. Meaning it only occurs when I accelerate. Nothing when coasting. There are no diagnostic codes or any lights on! The mechanic I use thought it was the carrier bearing, which I had replaced! Yip, removed the enitre exhaust system, heat shields, drive shaft, etc. to replace it, balance it and put it back in! I've had the engine tuned up, inductor plates cleaned, the mass-airflow meter cleaned. Still have the problem.
2 Replies
It's one of three things 1. A fuel injector.2. A coil. Or a spark plug.. your engine is miss firing.
Did you ever find the answer to the vibration when accelerating. I have a 2004 325xi. Starts fine, idles fine, only shakes when accelerating, or going up hill. Runs very smmoth when coasting and going down hill. I replaced the fuel filter, fuel pump,still shakes.
I would love to believe that to be the case; however, they did a complete tune up! Also, since they replaced the carrier bearing & rebalanced the drive shaft, the vibration and shaking is a bit different. The mechanic is now pointing at the "bushings" (all three) that hold the rear differential in place. Does this make sense?
My 04 BMWxi is doing same thing. I bought a new crank sensor, changed spark plugs to Bosch db platinum. If that works have O'reileys run a diagnostic could also be a coil pack. Also check fuel filter could be clogged and not getting enough fuel. Also last resort could be Air Mass Flow Sensor. Let me know what fix's it at email-martinmatthew2294@gmail.com name is Matt and good luck.