its an 88 honda civic 1500 dx a/t. ive had the alternater and battery both tested and their both good. but my battery wont hold a charge. please help
2007-02-19 06:18:06 · 5 answers · asked by mattishere2006 2 in Cars & Transportation ➔ Maintenance & Repairs
Sounds like you have an issue with a shot in a circuit
Try this
1. Get a 12VDC bulb and socket.
2. Remove the + lead off the battery and place the bulb in series so it goes batt. terminal then wire 1 of bulb then wire 2 of bulb to positive terminal.
3. does the light glow. if so that is the drain on the battery.
4. You can also measure this with a meter instead of a bulb.
then to fix the problem start with the fuses and pull and replace each one. if the glow goes out, what fuse is it. the research that circuit to see what is grounding.
one of my best mechanics (he made me do that) just reminded me that there is a relay in the 87-90's that shorts. there was a recall on them. it is located I believe front right fender. It is installed upside down and allows water to enter it. I bet that is it. I would check that first
2007-02-19 06:22:54 · answer #1 · answered by Uncle Red 6 · 1⤊ 0⤋
You have a circuit leak somewhere. Something must be shorted slightly. An alternator is notorius for this. Even though you have tested it and it puts out the right voltage, it can still bleed current through the diode bridge (inside the alternator). To test this, remove the positive battery cable with the car off. You will probably notice small spark when you touch the cable to the battery post. Unhook the battery lead to the alternator (this is the larger wire going to the alternator). Touch the positive battery cable to the battery post. If you don't get the little spark, the alternator is the problem. You can also check this with a ammeter. Otherwise, you either have a short somewhere else or a bad battery (but you said it was good). Good luck.
2007-02-19 07:05:42 · answer #2 · answered by Doug R 5 · 0⤊ 0⤋
try the alternator. try the vtage of the battery on a similar time as disconnected from the motor vehicle. it would examine 12.6 volts. Then re connect the battery, close each and every thing off, and look at the voltage. If the voltage is below 12.6 volts, there's a draw someplace. If no longer, it relatively is maximum possibly a bad alternator. examine the voltage whilst the motor vehicle is working, it would possibly be 13-14 volts. despite if it relatively is below 12.6 you defiantly have a bad alternator.
2016-10-02 09:49:10 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Could be a short somewhere.
2007-02-19 06:42:29 · answer #4 · answered by ? 4 · 0⤊ 0⤋
bad battery cables ??
2007-02-19 06:22:34 · answer #5 · answered by Anonymous · 0⤊ 0⤋