Sulfur smell

[littlebigrig6.0]

So I was out driving the other day, I was coming up a slight incline and then went to give it some gas and boy did it smell like eggs. Whats could this be about, also notice a loss in power

[sldghamr]

isn't the smell of eggs a symptom of a bad cat convertor??

as to the power loss, dunno..............

[powerhoghp]

Cracked up-pipe. The egg smell can be caused by a bad cat, but it is the sulfur smell you can also get from diesel fuel. The loss in performance can be from the cracked up-pipe, but keep in mind these trucks are designed to adapt to driving and as a result feel like they've lost "pep" over time. Best thing to do: check up-pipe for leaks/cracks and disconnect the batteries when/if you replace them.