Does has a hard knock?

2009 MAZDA 6
210,000 MILES • MANUAL
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J S AUTOWORLD
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  • 1 POST
Hi, I have a 2009 mazda 6 i 2.5L. I recent went out and the car was working just fine. I happen to come back home and park the car , the next morning I happen to go out and when I placed the car on reverse there was an extreme hard knock and was not accelerating pass 20mph. I took it to the mechanic shop and they ran the scanner. The throttle body came up which was changed they later changed the manifold. The car is still the same nothing has changed. Do you have an idea of what else can be checked to see what's wrong with the vehicle?
Aug 28, 2026 at 10:46 AM
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