Oh no, it's not the Jeep - never had a problem with any of mine that I didn't cause (like the fuse that kept blowing cause the O2 sensor was shorting against the frame after I'd bent the muffler pipe up against the underside by tooling around in the river running over big rocks).
It's a brand new short block, and the shop actually admitted that they probably messed up while installing the heads, valves, etc.

It's at the shop now, getting redone, they're telling me a week tops, probably less if it's all head problems.
And they're going to hook up the factory subwoofer they forgot to reconnect while reassembling.

Didn't bother demanding a loaner...I get free use of a Chevy Malibu anyway - it just has US Army blazed all over the hood, trunk and sides


SFC, US Army (Ret)