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08-24-2012, 11:07 PM
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#1
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Join Date: Jul 2011
Location: harmony, nj (phillipsburg)
Posts: 513
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lt1 voltage drop above 3800 rpm, new alternator...help
well here goes another fantastic problem. 94 lt1, new alternator, new belt, 4 gauge charging wire from alternator to battery
if i rev the car in neutral or get on it in any gear once it gets to 3800+ rpm the check gauges light starts flickering on, volt gauge goes down towards red, gauge lights dim and flicker, and headlights dim and flicker a little. that was all at first, and it was extremely intermittent, like once a week. now, its becoming more regular, and also just going down the road it started acting up at 50 mph cruising at 2k rpm. its making me nervous as i dont want to get stuck somewhere with my daughter in the car.
anyone have any tips or clues as to what this may be? this is the second new alternator in 2 months (autozone duralast gold, first one warranty upgrade from a reman that smoked in a week). thanks in advance
__________________
1994 Firebird Formula - Injuneer's car - NEW PB 9.90 @131
2021 Charger Scat
Wrench/driver 94 Camaro Ellwein 385/D1SC/CPT 4l60e/9" slow pile
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08-24-2012, 11:59 PM
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#2
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Stop buying chinese parts. Sounds like the alternator is bad again to me.
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08-25-2012, 09:06 AM
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#3
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Join Date: Jul 2011
Location: harmony, nj (phillipsburg)
Posts: 513
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i really think it is the alt again, cold start meter hooked to alt it doesnt do it, as the engine warms up and the alt gets hot it starts doing it....le crap
meh, off to crapzone for another warranty one
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1994 Firebird Formula - Injuneer's car - NEW PB 9.90 @131
2021 Charger Scat
Wrench/driver 94 Camaro Ellwein 385/D1SC/CPT 4l60e/9" slow pile
Last edited by townsend; 08-25-2012 at 09:07 AM.
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08-25-2012, 11:27 AM
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#4
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Join Date: Jul 2011
Location: harmony, nj (phillipsburg)
Posts: 513
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well since they dont have one in stock, i sat here playing with stuff. tried changing grounds, making new ones, adding grounds to block, etc. ended up jiggling the exciter wire for the alt, problem now went away....? im starting to hate this car, it seems like every electrical thing likes to cook melt or burn up. im having intermittent ignition switch issues again too. i even yanked the alarm system out to try to stop that problem to no avail.
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1994 Firebird Formula - Injuneer's car - NEW PB 9.90 @131
2021 Charger Scat
Wrench/driver 94 Camaro Ellwein 385/D1SC/CPT 4l60e/9" slow pile
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08-25-2012, 01:52 PM
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#5
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Start checking your harness, god knows how the alarm was wired it. I know on mine they cut the main ignition line under the column and tapped a few other wires. If you wanna be done with it, but a speartech or similar harness.
I have a 96 harness if you wanna try another engine harness. Would just leave CPS unplugged etc.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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09-02-2012, 04:44 PM
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#6
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Join Date: Jul 2011
Location: harmony, nj (phillipsburg)
Posts: 513
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yeah they cut a 4 wire plug and left the other side disconnected, then tapped and put relays and crap in for the remote start. its a mess
__________________
1994 Firebird Formula - Injuneer's car - NEW PB 9.90 @131
2021 Charger Scat
Wrench/driver 94 Camaro Ellwein 385/D1SC/CPT 4l60e/9" slow pile
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10-07-2012, 10:10 AM
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#7
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Join Date: Jul 2004
Location: West Long Branch
Posts: 13,598
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Quote:
Originally Posted by sweetbmxrider
Stop buying chinese parts. Sounds like the alternator is bad again to me.
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For the record, our alternators are not made in China and our Gold units are built new by Remmy.
You can apologize later.
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2/20/2013: They Day the ****s Stopped
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10-08-2012, 07:14 AM
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#8
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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And they still suck Carry on.
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10-08-2012, 10:49 AM
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#9
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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when I had my 94 Z and the alternator went before it actually went it was doing that. then with it running while troubleshooting something else it decided to was gonna go in my face. which was fun
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
Last edited by greenformula92; 10-08-2012 at 10:50 AM.
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