Chevy16001
Member
- First Name
- Ernie
- Joined
- Feb 25, 2025
- Threads
- 4
- Messages
- 9
- Reaction score
- 1
- Location
- Pittsburgh pa
- Vehicles
- 2021 f150 3.5
- Occupation
- Machine operator
- Thread starter
- #1
I bought a 2021 lariat with 36k miles on it and it had a bit of a miss at idle and doesn't seem to have as much power as other ones that I've driven. It also did the boost oscillation at cruising speed under light throttle sometimes. I had read people talk about running premium fixing that and that it would idle better. I'm about 4 tanks of premium in and the boost oscillation thing is gone but the miss at idle is still there. Is it possible it needs new plugs at 39k? Is there anything else I should be looking at?
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