Fix of the Week – May 6th 2020
The Fix of the Week:
Every week, we review new fixes submitted by our Direct-Hit users and pick our favorite “Fix of The Week.” This week our favorite fix regards a 2011 Chevy Malibu with a rattling noise and a Check Engine light, it comes to us directly from a technician in a shop based in Rochester, NY.
2011 Chevrolet Malibu 2.4 Liter 4 Cylinder
There is a rattling noise and the Check Engine Light is on.
Diagnostic Trouble Codes (DTC’S):
P0106 Manifold Absolute Pressure (MAP) Sensor Performance and P0300 Random Multiple Misfires
Other Applicable Vehicles:
2010, 2011, and 2012 Chevy Malibu’s.
I first checked the MAP sensor signal quickly and it checked out good. I noticed the rattling noise and knowing that these engines like to break the timing chain guides and wear the retaining bolts away, I pulled the oil filter and found a lot of metal shards. I pulled the valve cover and confirmed the missing front timing chain guide and worn away upper guide.
Replaced the Timing chain and guide kit, new (VVT) Variable Valve Timing Camshaft bolts, and oil and filter change.
Additional Information in Direct Hit:
There are 2 additional fixes for timing chain/ timing related repairs for the P0106 Code.