Is my ignorance at fault? I put a d1 wix air filter in whilst I believed I owned a d1. Is a d2 filter different and could it have an affect with said issues? I feel commonly simple for not knowing I had a d2. Everything I had pointed to d1, even the original owner (simpleton as well). I am now thinking most of the diy maintenance may have been done under the belief it was a d1. today I have sensors out and am now tracing wires looking for a grounding concern.
Thank you for the guidance thus far.
Cheers
you may be on to something.
NAPA lists the following serpentine belts for 1999 Discovery:
Series 1: ATM 7PK2235
Series 2 without ACE: ATM 7PK2345
Series 2 with ACE: ATM 7PK2710.
What's important there is the last four digits of each part number - it is the belt length in millimeters.
If your friend or DSPO or whoever else managed to put a shorter D1 belt to your D2, it must be routed incorrectly (the D1 belt is nearly four and a half inches shorter than what's needed for a non-ACE D2, which I believe you have). Either the alternator spins in a different direction (which I also believe should not be a factor, but maybe it is), or the belt constantly slips against the pulley not allowing it to charge the battery completely.