What is this issue?

[Fletch!]

I am very new to working on cars and just finished putting a 5.0 form a 98 explorer into my 01 ranger. What is this noise it’s making? It sounds like a tap in the video but in real life it sounds like air being pushed out. Is this a misfire, or a vacuum leak? I really got no clue help would be greatly appreciated

 

[Fletch!]

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[pjtoledo]

going solely on the statement "sounds like air is being pushed out" I would check the exhaust manifolds.

can't tell from the video. get a couple feet of rubber hose to use as a stethoscope.

 

[Fletch!]

It sounds like it’s stumbling but not a cool fat cam stumble it sounds like a misfire

 

[Poppa_R]

Could one of the spark plugs be loose?

 

[BlackBII]

Sounds like an exhaust leak and one or two cylinders not firing

 

[Curious Hound]

 

[Fletch!]

Sounds like an exhaust leak and one or two cylinders not firing

That’s what I was thinking I will check spark when I get home thank you