2001 BMW 540i 4.4L NOISE
At cold start up there is a knocking noise, sounds like from the left bank. Removed valve cover to inspect vanos and guides, vanos tight, no guide debris. Main timing chain appeared loose. Then removed right valve cover & sub oil pan to inspect, no debris foun...
FIX posted 10/16/2009
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Vehicle Data2001 BMW 540i
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Message Closed
Vehicle Data
2001 BMW 540i
VIN | WBADN63431 |
Engine | 4.4 L / 8 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI |
Affected | Noise |
Conditions | Start Up |