03 Jeep Wrangler won't stay running when hot

[cvettori55]

I picked this jeep up about a month or so ago, ran pretty well with a little engine knock probably due to the supercharger tune and the 93 I need to put in it. Just a couple of days ago I was driving a noticed a sudden loss of power in 4th and 5th gear. I dropped it off a a repair shop and my cam sensor was 33⁰ off. I drive it home almost no problem when I'm still losing power in 4th and 5th. I let it cool off and start it again runs fine sounds fine when its cold but I now have very little power in 2-5 gear and at high rpms there is a very loud sound that sounds like metal shaking violently. The jeep wont turn over easily when hot. If it does turn over I need to keep the pedal down so it doesn't stall. I've replaced the spark plugs made no difference. I've been reading around a nothing fully matches my symptoms. Any Ideas will help with what to look for or replace/clean

 

[Jerry Bransford]

Normally I'd think bad O2 sensor for a problem that only happens after the engine has warmed up but issues like the timing problem and having the supercharger make it tough to figure out.

 

[Chris]

Is it throwing any codes?

 

[cvettori55]

It did throw a code at one point I couldn't tell you the exact code but it said Idle/ Speed Performance (old)

 

[cvettori55]

I'm stumped at this point.... seems like it's not getting the right fuel mixture. It starts right up cold but as soon as is hits 210 it idles horribly and dies.... at 3k+ rpm makes a metal rattling noise. Any suggestions on a type of shop to take it too...

 

[Jerry Bransford]

I'm stumped at this point.... seems like it's not getting the right fuel mixture. It starts right up cold but as soon as is hits 210 it idles horribly and dies.... at 3k+ rpm makes a metal rattling noise. Any suggestions on a type of shop to take it too...

That it runs well cold but not when it is warmed up still sounds like a bad O2 sensor since the computer doesn't look at the O2 data until the engine has started to warm up. But that 3K+ rpm rattling sounds scary, could it be pinging from a lean fuel condition? A bad O2 sensor is one possible cause of a lean fuel condition.

 

[cvettori55]

My timing's are all put of wack. Dropped it off at a shop we'll see what it ends up being in a few days here...