I might have a bad cylinder on my 16 5.3

[BlackHawkZ71]

Well i got a new temp gun the other day and couldn't help to test everything out anyway I decided to do the exhaust manifold. Video is uploading as proof

 

Looking at the engine right side I assume 5.3 firing order is even one one side, odd on other

1. 167

3-7 202

 

Left bank never could get a good reading on but I figure they are close

 

I think I answered my own question long time ago, when I noticed my cat temps weren't close to each other.

[calgator73]

No codes?

 

Sent from my SM-G930P using Tapatalk

[newdude]

Cylinders 1, 3, 5 and 7 are driver's side. 2, 4, 6 and 8 are passenger side.

 

Does your truck run funny? Any codes?

[O_J_Simpson]

You need to repeat the same test under hard acceleration.

[BlackHawkZ71]

No codes, and it still does everything i ask, i did give it a hard rev prior to testing earlier and results still same. but honestly i never had something like this last temp gun i used was my 96 ram cummins with 280k miles and it was within a couple of degrees. At the injectors.

 

its about 30* cooler then the rest and cylinder 4 is about 20* assuming its reading at the manifold (i guess it kinda evens out haha

 

I guess this what happens when i get a temp gun,