Need a wave form cam and crank correlation

Gerardo Owner Schaumburg, Illinois Posted   Latest   Edited  
Question
Driveability
2016 Chevrolet Malibu L 1.5L (T LFV) 6-spd (6T40)
P0014 - "B" Camshaft Position - Timing Over-Advanced or System Performance Bank 1
P0017 - Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B
Came In With No Start Some Times Starts Found A Booster Vacuum Pump Frozen

Please need a wave form cam and crank correlation.

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Ray Diagnostician
North York, Ontario
Ray Default
 

2018 Malibu 1.5 good cmp, ckp

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Helpful
Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
   

Just an FYI. The vaccum pumps seize up on that engine because the pistons are very sloppy in the bore and burn a lot of oil. Probably has no oil in and thats why you have the timing codes. The VVT screens probably have metal in them as well. The vaccum pump is the last in the oil lube circuit and they always seize up. I would not waste to much time. The piston rings seize in the lands, then the…

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Gerardo Owner
Schaumburg, Illinois
Gerardo Default
 

Thanks

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Scott Manager
Claremont, California
Scott Default
 

Hi Gerardo, Hope all is well. Not sure if you tried searching here but here’s what I found and how.

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Martin Diagnostician
Burleson, Texas
Martin Default
 

There's a bulletin regarding the vacuum pump breaking off and the reluctor on the cam slipping. The bulletin has a very clear inspection procedure. I don't know the number, sorry.

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