2006 BMW 550I Camshaft DTC

Bernie Diagnostician New Mexico Posted   Latest  
Case Study
ATS - Automotive Test Solutions
Driveability
2006 BMW 550i 4.8L (N62B48B) 6-spd (A6HP26Z)
P0017 — Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B
P0018 — Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A
Cmp Dtc's

Here is a case study I have just completed. There is a great scope tip in this video to help find loose timing chains, I hope this helps.

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Dmitriy Analyst
Ontario
Dmitriy
 

Great analysis of scope waveforms, as usual, but I have a question: Trying to move phasers manually on an interference engine that is already out-of-time — how much of a gamble is it? Or it can be identified from the original pressure waveform that it is safe to do it? Was it safe in this case?

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Phil Technician
Massachusetts
Phil
 

While I agree in general principal about testing as much of the system as possible to verify that it works before commencing big dollar repairs. No way am I doing that job without new actuators. If the maintenance history is so poor that it clogged the screens on the solenoids and the chain has stretched and jumped then the actuators are very likely to fail in the not too distant future. It's…

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Glenn Owner/Technician
Texas
Glenn
 

Thanks Bernie, I wonder if the owner is going to invest in the repairs at this age of the vehicle?

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G Educator
New York
G
 

A great case study….Bernie kicks ass again…thank you

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Rick Technical Support Specialist
Missouri
Rick
 

Great info to use all transducers. Great job!

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Ray Diagnostician
Ontario
Ray
 

Thanks Bernie for the excellent presentation.

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Joel Diagnostician
California
Joel
 

It came a question across my mine , I have always heard when timing chain jumps alway jump to the retarded position this was 60 degrees off but on the advance side ?

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