Low Voltage on 2001 Trans Am..
Thread Starter
On The Tree
Joined: Feb 2002
Posts: 137
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Low Voltage on 2001 Trans Am.. Hmmm.. did some searching and havent found what i am looking at yet. I have a 2001 Trans Am.. Auto with 3200 stall, midlength macs, lid and cutout, and a ASP underdrive pulley. For the past 4-5 yrs my voltage has been reading low on the car while driving.. Especially at night with the AC on. The dash lights are dull red instead of bright red and the battery meter almost reads at the yellow on the left. Once I give it gas on the hwy, it'll stay in the middle while coasting but once I come off the hwy, the voltage meter drops back to the left almost hitting the yellow.
The car has never left me stranded and always starts up but I pretty much need a new battery every year (under warranty). The car was bought brand new and only has 27k miles on it as of today. Its not my daily and is driven maybe 50 miles a week and I use a trickle charger on it before my drive. It idles and runs fine. I was thinking it was the alternator but if it was, wouldnt the alternator have already gone out especially if the problem has been lingering for 4 yrs?.. Any suggestions?? Thanks!
Bobby
The car has never left me stranded and always starts up but I pretty much need a new battery every year (under warranty). The car was bought brand new and only has 27k miles on it as of today. Its not my daily and is driven maybe 50 miles a week and I use a trickle charger on it before my drive. It idles and runs fine. I was thinking it was the alternator but if it was, wouldnt the alternator have already gone out especially if the problem has been lingering for 4 yrs?.. Any suggestions?? Thanks!
Bobby
Teching In
Joined: Aug 2007
Posts: 21
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Hi there. Check this thread. I had the same problem with my car since I got it. When I fix the other problem that I had described in this thread it also fix my low voltage problem. Hope this might help you too.
https://ls1tech.com/forums/general-maintenance-repairs/981276-alternator-problem-please-help.html
https://ls1tech.com/forums/general-maintenance-repairs/981276-alternator-problem-please-help.html
Thread Starter
On The Tree
Joined: Feb 2002
Posts: 137
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weirrddd! Its been so long since I posted about the problem. I use a trickle charger on the car couple times a week and the battery has a full charge. However, when i drive around with the headlights, fogs, AC on and come to a light, the dash lights still get really dim. The battery gauge is nailed to yellow or a little below yellow. There are no CEL or battery lights on. When I get on the hwy, the lights brighten back up and the battery needle stays at half.
Car has 29,5XX miles on it. Still on factory alternator but the problem has existed for atleast 6 yrs. I checked the grounds etc but no go. Any other suggestions?? Maybe the alternator?? Its obviously charging the battery though even when I dont use the trckle charger. However, when I use the trickle charger, the battery is NOT fully charged unless the charger finishes the charge
Car has 29,5XX miles on it. Still on factory alternator but the problem has existed for atleast 6 yrs. I checked the grounds etc but no go. Any other suggestions?? Maybe the alternator?? Its obviously charging the battery though even when I dont use the trckle charger. However, when I use the trickle charger, the battery is NOT fully charged unless the charger finishes the charge
Thread Starter
On The Tree
Joined: Feb 2002
Posts: 137
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I'll check it when I get home.. Do I need to jack up the car? Hmmm wonder if this is the cause of the problems.. The anxiety is killing me LOL.
Thread Starter
On The Tree
Joined: Feb 2002
Posts: 137
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i checked that little red exciter wire and no go. I unplugged it.. plugged it back and no difference. Dont the LS1s show a battery light and/or another light when the alternator is going out? I may just get another dam alternator.
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It's because the underdrive pulley is making the alt spin slower.
All you need to return back to normal is an ASP overdrive alt pulley, especially recommended for auto cars.
You will need a different belt, I did the research awhile ago, you need following belt: Gates, Part#: K060755
All you need to return back to normal is an ASP overdrive alt pulley, especially recommended for auto cars.
You will need a different belt, I did the research awhile ago, you need following belt: Gates, Part#: K060755
Thread Starter
On The Tree
Joined: Feb 2002
Posts: 137
Likes: 0
It's because the underdrive pulley is making the alt spin slower.
All you need to return back to normal is an ASP overdrive alt pulley, especially recommended for auto cars.
You will need a different belt, I did the research awhile ago, you need following belt: Gates, Part#: K060755
All you need to return back to normal is an ASP overdrive alt pulley, especially recommended for auto cars.
You will need a different belt, I did the research awhile ago, you need following belt: Gates, Part#: K060755
Teching In
Joined: Aug 2019
Posts: 19
Likes: 2
From: OKC, OK
Low voltage reading Hmmm.. did some searching and havent found what i am looking at yet. I have a 2001 Trans Am.. Auto with 3200 stall, midlength macs, lid and cutout, and a ASP underdrive pulley. For the past 4-5 yrs my voltage has been reading low on the car while driving.. Especially at night with the AC on. The dash lights are dull red instead of bright red and the battery meter almost reads at the yellow on the left. Once I give it gas on the hwy, it'll stay in the middle while coasting but once I come off the hwy, the voltage meter drops back to the left almost hitting the yellow.
The car has never left me stranded and always starts up but I pretty much need a new battery every year (under warranty). The car was bought brand new and only has 27k miles on it as of today. Its not my daily and is driven maybe 50 miles a week and I use a trickle charger on it before my drive. It idles and runs fine. I was thinking it was the alternator but if it was, wouldnt the alternator have already gone out especially if the problem has been lingering for 4 yrs?.. Any suggestions?? Thanks!
Bobby
The car has never left me stranded and always starts up but I pretty much need a new battery every year (under warranty). The car was bought brand new and only has 27k miles on it as of today. Its not my daily and is driven maybe 50 miles a week and I use a trickle charger on it before my drive. It idles and runs fine. I was thinking it was the alternator but if it was, wouldnt the alternator have already gone out especially if the problem has been lingering for 4 yrs?.. Any suggestions?? Thanks!
Bobby
