'97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
#1
'97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
I have a 1997 Honda Civic LX with the D16Y7 SOHC.
It has a JR SuperCharger, BOOST CONTROLLER, MSD IGNITION BOX, AND COIL, MSD WIRES, PLUGS, COLD AIR INTAKE, HEADERS, FULL EXHAUST, BBK ADJUSTABLE CAM GEARS, THROTTLE BODY, COILOVERS,WALBRO HIGH FLOW FUEL PUMP, AEM FUEL FILTER, AEM FUEL RAIL, FUEL PRESSURE REGULATOR, INJECTORS, BRAKES, SHORT SHIFTER, AND SIDE GAUGES (FUEL/AIR RATIO, BOOST, AND SHIFT LIGHT)
I just replaced the wiring harness and battery. I have an Alternator problem. I knew I had this problem before I bought the car.
I took it out for a drive, drove fine. Flipped on the head lights and my TAC, radio, dash lights, and gauge lights stop working and the battery light pops up. Turned them off and 30 seconds later the car dies. I let the battery self charge and I start it up and it runs for another 30 seconds and dies.
Alternator problem right? I know the previous owner and it has been through 3 Alternators that I know of. All of them are Napa 70A alternators.
Do I need a higher amp alternator? The car ran just perfect until this problem
My alternator is spinning. New wiring harness, and the alternator was new!! WTF??
It has a JR SuperCharger, BOOST CONTROLLER, MSD IGNITION BOX, AND COIL, MSD WIRES, PLUGS, COLD AIR INTAKE, HEADERS, FULL EXHAUST, BBK ADJUSTABLE CAM GEARS, THROTTLE BODY, COILOVERS,WALBRO HIGH FLOW FUEL PUMP, AEM FUEL FILTER, AEM FUEL RAIL, FUEL PRESSURE REGULATOR, INJECTORS, BRAKES, SHORT SHIFTER, AND SIDE GAUGES (FUEL/AIR RATIO, BOOST, AND SHIFT LIGHT)
I just replaced the wiring harness and battery. I have an Alternator problem. I knew I had this problem before I bought the car.
I took it out for a drive, drove fine. Flipped on the head lights and my TAC, radio, dash lights, and gauge lights stop working and the battery light pops up. Turned them off and 30 seconds later the car dies. I let the battery self charge and I start it up and it runs for another 30 seconds and dies.
Alternator problem right? I know the previous owner and it has been through 3 Alternators that I know of. All of them are Napa 70A alternators.
Do I need a higher amp alternator? The car ran just perfect until this problem
My alternator is spinning. New wiring harness, and the alternator was new!! WTF??
#2
Re: '97 D16Y7, NEED YOUR OPINION!!
Use a multimeter to measure voltage across the two battery posts with the warm engine idling and (1) all electrical accessories off versus (2) the high beams, A/C (max), and rear window defogger on.
Post voltages for (1) and (2).
Post voltages for (1) and (2).
#3
Re: '97 D16Y7, NEED YOUR OPINION!!
Yeah I tried that.
My voltage dropped when I put on the Lights, and when I revved the engine up.
All signs point that I need a new alternator.
What if I do put a new one in? Am I going to have to replace it soon?
Because it seems like there is an issue somewhere. Do you know if I need a bigger alternator or no?
My voltage dropped when I put on the Lights, and when I revved the engine up.
All signs point that I need a new alternator.
What if I do put a new one in? Am I going to have to replace it soon?
Because it seems like there is an issue somewhere. Do you know if I need a bigger alternator or no?
#6
Re: '97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
The fuse is good.
The voltage drops down to like 9 when I do all that. But it drops quick. I mean it will die in 5 seconds if I leave the lights on.
Thanks grumble, I might look into that. That could be it. Do you know of a PDF, or a site I could get it from. Bolt Patterns and Belt Diagrams? Because I tried JR.com already, nothing.
The voltage drops down to like 9 when I do all that. But it drops quick. I mean it will die in 5 seconds if I leave the lights on.
Thanks grumble, I might look into that. That could be it. Do you know of a PDF, or a site I could get it from. Bolt Patterns and Belt Diagrams? Because I tried JR.com already, nothing.
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#9
Re: '97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
Hmm, so a 70 Amp alternator will work?
A waste of money? Yeah I guess, I work at a gold mine. Besides it's nice to have. Performance and Resale.
A waste of money? Yeah I guess, I work at a gold mine. Besides it's nice to have. Performance and Resale.
#11
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Join Date: May 2005
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Re: '97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
Over the years I've seen far too many dyno graphs proving that the stock plugs/wires/distributor are better than almost any aftermarket piece.
10 year old OEM sumitomo wires were better than the $150 MSD wires and several others.
#12
Honda-Tech Member
Re: '97 D16Y7 - Bad alternator? NEED YOUR OPINION!!
not everyone will believe this because they don't want to for the reason they already spent the money so it has to be better
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1997, alternator, alternators, amperage, bad, battery, civic, d16y7, driving, fuse, honda, lx, replacement, shuts, symptoms