could that cause the lights to pulse at hwy speeds if it is bad ?
(head lights , dash lights

my 06 does this , started not long after I got it , dealer could never track down the problem

also it comes and goes that was the problem when the dealer was looking at it

_________________
05 liberty CRD Limited - suncoast TC , GDE Turbo , GDE TCM Tune 2gen OEM filter head, stant 195 tsat, Autoandart Window Fix, New TB kit ~190k (Geordi)
06 Liberty CRD Limited - stant 195 tstat Autoandart Window Fix, 2gen OEM filter head, New TB kit ~180k (Geordi), GDE Turbo, GDE TCM ECO tune

Yea, that is what mine was doing before I replaced the alternator. The problem hasn't happened again since. I have a brand-new decoupler in the box for sale if you want it, I screwed up the shaft on mine so wound up replacing the entire alternator.

_________________
Proud supporting vendor of LOST Jeeps
TRAVELING CRD TECH. I come to you!
Need help? Just ask! I've taken it apart more than most.
Email jeep [at] maincomputer [dot] com - BOARD MESSAGING IS BROKEN
Over 225 CRDs currently driving with my valves, timing belt, rockers, or ARP Studs.
Bad noises = REALLY bad things.