i replaced my alt for the 3rd time... and i still have a voltage drop when i come to a stop or put it in gear... i have checked all my grounds and the wiring... is there thing i can possiably do???

 

Yea make sure your battery isn't old, no corosion on the terminals, you have proper cranking amps. I believe the alt has in internal regulator, so try these. I had the same problem with my 01 blazerso i put a duralast in it with 650 cca and it seems to be fine.

 

ya my battery has been tested multipul times and its cool... i think its 650 cca... the batt is 27 months old... it looks like it is brand new... ne other guess?? o and my batt is a mega-ton interstate

 

what is the RPM you are idling at? i work at autozone and i have seen many cars that get to idling to low and bring on a light, or the gauge go down, but the alternator passes the test we give it. check your idle, my 97 idles just under 600 rpm.

 

I dont think a 2nd thread on the subject is going to fix your problem any faster.

 

Please do not post more than one thread concerning the same problem. Anyone wishing to reply to this problem, please use the original thread:
https://blazerforum.com/m_187079/mpa.../tm.htm#187079