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Only at idle on the top end. Car seems to run fine but some kind of ticking at idle. 4000 miles on factory oil change(since I bought the car). Looking at @56% on oil life. Not sure if synthetic.
 

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2014 LT program car, Pull Me Over Red
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11,597 Posts
1. Could be just the injectors

2. Could be the plastic ECOTEC cover rattling

3. Check that the spark plugs are properly torqued -- 18ft-lbs (might as well re-gap them - .028 for a 1.4) and make sure the springs are not stuck/bent etc.

4. Could be a failing EVAP purge solenoid/valve or possibly a vacuum leak causing the purge valve to stay open

5. Could be a lifter tick - try seafoam or valvemedic

6. Could be the timing chain tensioner

7. Could be a sloppy timing chain

8. Could be piston slap/wrist pin failure

Since your at idle, these next two won't be it, but I'm including them anyways...

9. Pinging caused by low octane fuel

10. Could possibly be an improperly torqued bolt on the flywheel/torque converter (noise from the trans side)

11. Might be a bad wheel bearing

12. Possibly the knock Sensor going off or bad and it can be exacerbated by any of the above.
 
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