Pulsing/Flickering Int/Ext Lights.. I Have Replaced My Alt.
04-26-2011, 04:00 PM
#61
On The Tree
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My car did the same thing for over a year. I bought a new optima battery and put vaseline on the terminal and wire ends. You can also use dielectric grease. With these cars, it takes hardly any corrosion to cause problems . My car would even sometimes cut out completely while driving. What kind of alternator are you buying? A remanufactured or a new AC Delco alternator is ****. You need a high amp alternator. I switched to a 160 amp and no problems since. More $$$, but better quality.
04-26-2011, 06:44 PM
#62
ok, just installed the new voltage regulator in my old alt. so far so good! i read the voltage off the battery for about 10-15 minutes and it stayed right between 14.18 with the fans on and 14.31 with the fans off, just like it should. the new delco alt was running at 14.62 and would drop to 13.58 (when the lights would flicker). i'll keep you all posted with what happens here. hope it doesn't eat up this regulator too.
04-26-2011, 08:21 PM
#63
ok, just installed the new voltage regulator in my old alt. so far so good! i read the voltage off the battery for about 10-15 minutes and it stayed right between 14.18 with the fans on and 14.31 with the fans off, just like it should. the new delco alt was running at 14.62 and would drop to 13.58 (when the lights would flicker). i'll keep you all posted with what happens here. hope it doesn't eat up this regulator too.
04-28-2011, 12:01 PM
#66
i did, and it works great. but i figured that since i already have the new alt that is doing the same thing that my old one, i might try to swap the new regulator in to the new alt to see if i will get good results. maybe they use cheep junk regulators on the aftermarket alts.
04-28-2011, 12:20 PM
#67
i did, and it works great. but i figured that since i already have the new alt that is doing the same thing that my old one, i might try to swap the new regulator in to the new alt to see if i will get good results. maybe they use cheep junk regulators on the aftermarket alts.
04-28-2011, 01:13 PM
#68
using rebuilds is always a crap shoot.......most use cheap chinese parts that dont work worth a damm......which is why so many remans crap out.....but we are still at the basic premise.........a CS130D is barely strong enough to power our f bods
04-28-2011, 10:50 PM
#72
i recommend a junkyard alt off of a low mileage truck.........a reman would be a crap shoot.......the guy in that vid you watched also sells alts.....top notch but pricey......as far as i know GM does not sell alts new.....just a GM branded reman
05-05-2011, 12:33 PM
#74
I'm having this same issue. It's annoying the ***** out of me. I'm going to be testing my volt regulator on the alternator tonight.
What is the 2003 truck that alternator came out of?
Edit: Found it on rockauto.
What is the 2003 truck that alternator came out of?
Edit: Found it on rockauto.
Last edited by JohnnyBz28; 05-05-2011 at 12:40 PM.
05-05-2011, 10:57 PM
#76
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I know this isn't the answer all of you want but I just learned to live with it I bought my 02 z28 in 2005 with 25*** miles it now has 113*** miles and has had this issue since then
05-06-2011, 07:18 AM
#77
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I'm running TWO motorcity reman'd alternators, one in my red TA and one in my black TA... Both 160 amp.
The red TA charges FINE, the black TA drains/dims at a stop in gear when the fans are on, badly, to around 7/8 volts... Then I blip the throttle and they go up to 12/13.
Soooo...
I've switched alternators between the two... No change.
Then, I switched batteries between the two while the alternators were still switched... NO CHANGE! lol
These problems don't necessarily have anything to do with alternators, guys... I checked all grounds, and all battery cables/terminals, grounds are clean!
Still trying to figure this out myself.
Just raised the drive idle and neutral idle of my black Trans Am to 600 and 850 (I throw it in neutral at long stops and red lights), and it's driving me less crazy now... But once the fans go high speed, it doesn't matter what alternator is in the car!
Anybody?
The red TA charges FINE, the black TA drains/dims at a stop in gear when the fans are on, badly, to around 7/8 volts... Then I blip the throttle and they go up to 12/13.
Soooo...
I've switched alternators between the two... No change.
Then, I switched batteries between the two while the alternators were still switched... NO CHANGE! lol
These problems don't necessarily have anything to do with alternators, guys... I checked all grounds, and all battery cables/terminals, grounds are clean!
Still trying to figure this out myself.
Just raised the drive idle and neutral idle of my black Trans Am to 600 and 850 (I throw it in neutral at long stops and red lights), and it's driving me less crazy now... But once the fans go high speed, it doesn't matter what alternator is in the car!
Anybody?
05-06-2011, 07:34 AM
#78
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wow this is a bs problem . Someone has to find a fix for this , i think i may be getting this issue to come about . What alt option do i have if im procharged with a p1sc?Will the truck one work for me too.
