DCRB

Its an obd0 d series re manufactured duralast alternator, came ob my var when i bought it almost four years ago, had been on the car about a year. Stock alternator wiring to the fuse box, the four gauge to the starter, then 2 gauge to the battery in my trunk. Lights only dim above 6000 rpms or below 1200. Using my dmm im getting 14.3 volts at idle to my battery

Does this sound like my alternator is getting tired? Or a wiring issue? Battery light works but doesnt come on.

Thanks in advance!

DCRB

bump any ideas?

I should ad i have an 8 gauge ground strap on my trans, and a ground cable running from my valve cover bolt to my shock tower. for the battery i have a massive braided battery strap running to the shock tower bolt, and all grounding points on the chassis were sanded to bare metal before installing

DCRB

still lookin for ideas here

wannabegsr

I would run a gound wire from batt up to engine bay 8 gauge then run 10 guage to trans thats how i would do it doesnt hurt.But to check and see if its a ground issue are ur rears lights dimming 2 ?

1991civiclx13

yeah the battery ground wire would also be my guess since it runs the longest distance, relocate maybe

DCRB

i can try that but the whole chassis is a ground and i have good grounds, i'll try adding one from the alternator to the chassis as well. i've always heard you want the shortest grounds you can possibly have...

ghosthatch

well whats it reading at 6000rpms???

DCRB

idk i don't currently have a votage gauge hooked up i'll hook one up and go do some pulls and report back

SNYPO

yea same here! when im on the freeway in my stock 88 and going about 85mph my battery lights will start flickering and my lights will dim slightly but i have noooooo idea why

DCRB

Snypo that sounds like your alternator is dying my old van's alternator did that when it took a dump.

mxglory258

Hey don't mean to thread jack but google brought me here. I've got a 92 civic cx box stock. My alt crapped out and my friend gave me an h22 alt off of his lude. I made a bracket and got it all mounted. Worked great now I'm not sure. Having a similar issue with my car. My batt is in the back pending more work done at a later date both my hot and ground are about 9/16 and only my dash lights start to dim and flicker at higher rpm. At an idle everything dims a bit which isn't a concern really...can anyone shed some light for me?

SNYPO

hmmm idk its a new alternator....but could be a bad one i guess.. not even 6 months old yet

DCRB

i've purchased bad ones off the shelf before

wannabegsr

Made on Monday ALTs hehehe