I have been noticing that the voltimeter is moving when I have my turn signal on, and the "prnd321" and odometer is flickering all the time. What is the problem, is it the battery or the alternator, or is it something else that I'm missing. If it is the alternator should I update the alternater to the avalanche or truck alternator, if I upgrade the alternator do I need to do the big three. Also my drivers window doesn't want to go up right after I have just put it down. Any help is greatly appreciated. Thanks in advance. Ps. I have a 1998 4x4 Blazer

 

Do a search for the 'big three upgrade', it may help.

 

Thanks, I took a look and found the big three, but who has done a thread on upgrading the alternator.

 

How To: High Output AD244 Alternator for ~$80 - S-10 Forum

here ya go

 

Mine has been doing that since I bought it. Still starts everyday, doesnt bother me. LOL

 

I'm pretty sure the battery is good since I listen to music at lunch and breaks, almost an hour with no problems, I wouldn't worry about it if I didn't have extra lights on my blazer.