Recently ive noticed a huge power lag on my KJ, it has 49k on it and if im on the highway or going up a hill if im riding around 3,000 rpms and i dont floor it it will drop to about 1,000 rpms, and no its not shifting, and stay there until I floor it again. I havent been to a mechanic yet im thinking maybe a clogged Cat or vaccum lines? i know i have a small exhaust leak.

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04 Rocky mountain KJ (SOLD)
OME Front Kit 790 springs on OME NS131s
skyjacker rear shocks and springs
ARB Deluxe bumper w/ Warn 9500i
Skid plates all under
ARB On-board Air w/ Front & Rear Air Lockers
JBA 4.5 UCA's
Lots O' Lights

"If it ain't broke...it might be after i try this!"

small exhaust leak can cause it to run rich and end up possibly ruining a cat or cats.
Also how long since your last tune up?

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

I gave it a tune up about 5,000 miles ago, should i pull a plug and see if its blackened? Thats the best way i can think of to see if its running rich or not.

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04 Rocky mountain KJ (SOLD)
OME Front Kit 790 springs on OME NS131s
skyjacker rear shocks and springs
ARB Deluxe bumper w/ Warn 9500i
Skid plates all under
ARB On-board Air w/ Front & Rear Air Lockers
JBA 4.5 UCA's
Lots O' Lights

"If it ain't broke...it might be after i try this!"