Light rattling/tapping all the time

C

Cole Moss

Greenie N00B Member
Year/Make/Model: 2012 MS3
Mileage: 127k
Location: Burlington VT
Concern: rattling taping noise coming from engine bay area
DTC's: NA
Modifications: Don't know all the mods but I know it has a CS intake and I think Ultimate racing catback exhaust
ECU/Tuning Software: Cobb AP?
Tuner: Freektune
Is the concern intermittent? No
Can you duplicate the concern? Yes
Recent Repairs: NA
Correction:

I'll upload a vid of it at idle
 

Attachments

Raider said:
Totally normal. Sounds like injectors tapping.
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Thank you for the reply. I posted on reddit and people were saying either knock or timing chain. The timing chain sounded right cuz it rattles sometimes on deceleration if I hold the gas and was just starting to get concerned. Do you know timing chain symptoms cuz ik they do go on these cars. Also bought the car modded less than a year ago and have already put a fortune into it :(
 
Easy way to check the chain. Take off the valve cover. Look for fresh grooves on the inside of the cover where the chain is. Will need to rtv and gasket replacement but yeah. Also TDC check for slack in the chain. Also drain oil and look for metal.
 
Raider said:
Easy way to check the chain. Take off the valve cover. Look for fresh grooves on the inside of the cover where the chain is. Will need to rtv and gasket replacement but yeah. Also TDC check for slack in the chain. Also drain oil and look for metal.
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Thanks a lot :)
 
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