Hey Scotty, I’ve been watching your videos or about 2-3 years now to learn more About car but i has a question for you about my car (2001 f-150 XLT) so my truck has been shaking pretty rough when it’s in reverse or idling and when I noticed that, I took it to the mechanic and they told me that one of the pistons wasn’t working, so I got that fixed and then that only stopped it for about 2 days, I brought it again and they told me it’s the oxygen sensors, so I got those replaced and it’s still doing it, my question is are they scamming me or is the truck just too old to repair? If so, how do I fix it or what is the problem. It’s not the vacuum tubes, they checked that too. Thanks and keep up the great work!

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well, it's old but anything can be fixed by a pro. I would suggest finding one better than who you've been using