Battery- Alternator Issue
 

my 1995 Honda Accord LX 2.7L. so the battery light went on but very faded. I took the car to my mechanic, he tested the battery and Alternator and the battery was bad. took the car to Advanced Auto when I bought the Die Hard Gold 2 years ago and he tested it and it was bad. He put in a new battery at no cost, which is great. took the car back to my mechanic and he tested everything again and the Alternator looked ok, but the faded battery light was still on. so im driving home and within a couple hundred yards of home the battery light went off. any advice here is appreciated. the alternator was changed with a rebuilt from Advanced Auto on 4-2019. now that I have a new battery do you recommend a new Alternator and if so should I spend the extra money and get the Denso?

the Denso is re manufactured. I can get a new one made by WAI GLOBAL. I can also get a REMY re manufactured OE Manufacturer: Mitsubishi. not sure what to do.

so much thanks!

bt

Not sure if you are doing any DIY work/testing on the car. I'd suggest testing the voltage drop across the battery cables when the engine is running. Simple test. Set your volt meter to voltage. Put the meter on the + battery post and on the large alternator post when the engine is running. You should see <0.5V across that cable. Repeat on all cables from both battery posts.

Another item to quickly test is to use white out or a paint pen and mark a line from the center of the crank pulley out to an edge. The crank pulley (aka harmonic balancer) is really two metal discs glued together with rubber. If the rubber is detached, the outer pulley won't spin with the inner pulley and not drive your alternator. Run the engine for a bit and see if you still have a straight line.

thank you! I will bring this info to my mechanic! got away lucky today getting a brand new battery at no cost.

bt

so I had the Denso alternator installed. problem solved. so now I have a new battery and alternator!

thanks again for your help! much appreciated.

bt