How to diagnose a blown head gasket!! Jeep Wrangler TJ & Terminator cobra testing.

In this video I'll take you through the thought process and diagnosis I went through to find a blown head gasket. One of these two has a blown head gasket. Can you guess which one it is before watching? :)

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[dandookie]

Awesome video, absolutely love your content. You have a great way of explaining things and concepts. Keep up the great work!

[tomriggs]

Another informative video! Keep them coming!

[mikekosar]

My money’s on the TJ..!!
LS .. fits..!!

[MarzNet]

Block test for combustion gases. Based on what you are showing, you are pretty much guaranteed a positive result.

[GaryOaksEgo]

Now my res empties over night without even running and no leaks

[screamineaton]

For the redfire is the boost bypass functioning properly? Ive had mine fail and had and over heating issue from it.

[Moe]

My Cobra also pushes coolant sometimes out of the reservoir on wot pulls, no overheating at all; I wonder why.

[daniapril]

Hey, how would I find the cap for pressurizing the coolant system?

[schubi]

There is not such a thing like a blown head gasket on a wrangler tj 4.0 😂