Let's take a quick look at the VVT by removing our valve cover and inspecting the VC itself, as well as checking the tension of the timing chain. Takes about 20 minutes to check and basic tools are needed. If you haven't checked your VVT before or dont know if it was replaced prior to purchasing the car (if you bought used), then this is a MUST to ensure longevity of your engine! In my case there was a VVT rattle for 5-10 seconds on start up. That sound is actually the timing chain slapping against the VC. Big no no and definitely going to be replacing the VVT ASAP! Stay tuned - she'll be back to 100% soon!
Mazdaspeed 3 : How To Check Your VVT!
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