Where is the knock sensor located on a 2010 GMC Terrain
Being that you have a terrain, your problem is NOT the knock sensor. Locate the 17 digit VIN on your vehicle and contact a dealer and see if there is a timing chain recall that pertains to your vehicle. The problem is the bank one chain actuator is not adjusting properly. I've had to repair a number of these, and it's costly(12-1600.00 and NOT for a DIY'er
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