Engine rough acceleration

[350klone]

My 18’ gt is starting up but when I press the gas my vacuum gauge goes down and the engine wants to stall. I have attached a video if you guys could help out, I would great appreciate help. Thank you.

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[Lime1GT]

That does not sound good. If you have warranty you should get it in right away. Just guessing from what I hear; Rocker arm? IMRC broken?

 

[Shifting_Gears]

That’s a misfire, a very noticeable one. That hissing also sounds like a vacuum leak.

Any check engine light?

Bad IMRC is possible but when mine failed the car drove and accelerated OK but surged constantly.

Take it to the dealer ASAP. Preferably on a flatbed. You don’t want to drive like that.

 

[350klone]

Thank you guys for your feedback. I believe the IRMC is to blame now that I’m doing research. For now I’ll check for vacuum leaks and see what occurs.

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