charging system problems
I have a 2003 5.9L diesel 3500 When its below 60 degrees outside and truck is cold (has been sitting for more than 4 hours)....The alternator will not charge at idle...or anything below 2000 rpms for that matter. Once i put the truck in drive and start driving, i have to get the rpms up before it hits second gear....then the alternator activates and starts charging. If i just let it sit there and idle....the alternator will start charging after maybee 5 minutes or so. Untill then, it just sits there and the lights dim every time the intake grid heaters cycle on and off while its cold. This issue just started this year.