Re: What is the DEAL with the 05, with the 5.7 Wiring Hardness falling appart?
Interesting! In addition to my 06 WK, I have an 05 LX that I purchased new in July 04, and I have not had any deterioration of wiring harness, nor have I heard of anyone else having a problem similar to yours. About the only things I can think of is that yours has perhaps been repeatedly overheated, someone has been screwing around with it, or critters have been chewing on it.
I'd do the easy stuff first to see if it corrected the problems. A few things I would do first are:
1, One at a time I'd pull all the fuses and relays in the Forward Control Module (FCM), clean the contacts and firmly reinstall them.
2. I would carefully pull all the affected convoluted plastic tubing ( black flexible covering over the wires), inspect all the wiring for damage and repair as necessary, and install new covering. The tubing is available at your local auto parts store.
3. Pull the negative battery cable for ~1 minute or so and then hook it back up. This will reset the adaptives in the computers.
4.You may want to also check for Technical Service Bulletins (TSB) that may apply to your vehicle, and have them accomplished. http://www.wkjeeps.com/wk_tsb.htm
I am sure other members can add to this too, so stand by for more input.
05 LX/RT and 06 WK/GCO, (modded similarly) with MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tubular headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 spark plug gap.