Review on GTMOTOR AFM RA003: The Ultimate Fuel Management Disabler for GM Vehicles by Jeff Billingsley

2014 Chevy K1500, 4.3L, automatic. I had vibration/lock at around 35-55mph which was very annoying. The dealer could not understand the problem. I did my own research/testing and found that this small V6 engine has the same AFM system as the 5.3 liter V8 engines. WTH! I found that the vibration occurs every time the AFM solenoid on cylinder #3 activates. I bought this AFM Separator and installed it per the instructions and was 100% sure the vibration was gone. It might not be the best solution, but it's by far the cheapest. Fixing it properly would mean recreating a bad design that no one can afford. Thank you for making this product! Super happy with the results.