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08-01-2008
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#1 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,085
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Over charging...................
What would cause an over charging problem?With the car idling the gage sits at 17 volts.I havent checked anything with a meter yet,just found this NEW problem.most likely the voltage regulator.I get the car back togather from replacing the injectors and now I need to remove the plenum to remove the altenator
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08-01-2008
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#2 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,160
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Re: Over charging...................
Quote:
Either a bad gauge (doubtful) or an overzealous internal regulator would be my guess
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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08-01-2008
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#3 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,663
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Re: Over charging...................
put a meter on it first to make sure the dash gauge is reading right.
if you realy are seeing 17 volts the batterie could be toast |
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08-01-2008
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#4 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: Over charging...................
I'm not so sure that the gauge is designed to give us a linear read out except at the extreme edges of the sweep....kind of like our oil & water temp gauges if ya know what I mean??? What I'm trying to say is that the volt gauge should not be relied upon for any diagnostic in the micro sense.....it's purely a macro reading....if it don't move at all or if it gets pegged there is something wrong for sure, anything in the swept area is only an approximate volt reading.
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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08-01-2008
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#5 |
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Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,085
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Re: Over charging...................
What are the chances of this being a bad battery?I drove the car to work last night to see if this was a fluke,no dice.I had a few minutes so I took my meter and checked voltage at the battery and at idle it was 16 volts,raise the RPM and the volts would come up.The altenator in this car is fairly new,that dont mean squat I know.If its the voltage regulator Ill just get at it.Driving the car I had to turn on everything to bring the volts down just to get the battery Icon to go out in the panel display.
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08-01-2008
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#6 |
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Join Date: Jan 2006
Location: Temecula, CA
Posts: 92
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Re: Over charging...................
If there are weak cells in the battery the alternator try's to charge them. If the battery is fully charged the voltage should come down to the 13.8 to 14.2 range. Also, what is your battery voltage w/o engine running. A charged battery should be over 12 volts, new around 12.8 volts.
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