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What could make a Battery run dead after starting with new battery and alternator installed?
Wiki User
∙ 18y ago
One of 2 things a wire on your battery or near your battery could not be covered correctly or a exposed wire somewhere else. You more than likely have something that is drawing current from the battery when the car is sitting. Check dome, courtesy, glove box, trunk, and hood lights, or in rare instances, a power window switch stuck in the up position. You could possibly have also purchased a new bad battery or alternator. It happens! You should read from 13.5 -14 volts at the battery with the engine running. Make sure the battery & alternator are good. Any auto parts store can check your electrical system, and most of the time it is a free check. One way to check for current drain, is to disconnect the battery at night in a dark area. If you see a spark, then something is on.
Wiki User
∙ 18y ago
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Could alternator drain battery when car is not running?
If the alternator is installed incorrectly, yes, it can drain the battery.
Installed alternator and went to hook up battery and got sparks from negative terminal and alternator?
wires are crossed or you have a short in the wiring from the alternator to the battery.
Can the wrong size car battery damage the alternator?
No, not unless you installed a 6 volt battery instead of a 12 volt battery.
Why would the battery light of a 98 Pontiac Sunfire come on after a new battery was installed?
You have a bad alternator.
Battery not charging?
battery tests good, alternator tests good, new voltage regulator installed and still no charge to battery from altanator .
What should you do if battery was not charged before installing new alternator?
My advice is to charge the battery with a battery charger before starting the engine. You will be putting a heavy load on the alternator if you allow it to charge a dead battery. This could damage the alternator.
Why won't by battery light go out in my eb Ford Falcon?
That normally happens if your alternator is not charging, or if your Battery cell is faulty. This will result to your car not starting. One always leads to the other. Do one of 3 things, check if your alternator brushes are still in good shape. Check thetension of your v-belt and that the alternator is tightly installed. Have your battery checked out at your nearest battery centre.
How can a new battery still go flat with new alternator installed?
If you install a new battery & new alternator and the battery runs down overnight then you have something pulling power from the battery. Look for any light on the vehicle that is on or a relay that is stuck.
Will a bad alternator keep a 1999 S10 pickup truck from starting?
The answer is no . The battery starts you vehicle , the alternator charges the battery so if your alternator is bad your battery is not receiving a charge which will cause a "no start" condition.
Why is your car not starting and the battery keeps dying?
Possibly a bad alternator. The Alternator charges the battery when the vehicle is running. If the battery is not being charged this could cause the vehicle not to start.
Just installed a new alternator and belt on 1999 blazer - the new alternator is very hot your husband has leather hands and says it very hot Everything is grounded properly?
is your battery Low or poor?? Charge your battery on slow charge for 8hrs to give it a good deep charge, Installing an alternator on a low or dead battery will ruin it and also not charge your battery properly.. An alternator is not a battery charger its a battery maintainer!!
Why is a car battery being drained in an 1985 Fiero. A rebuilt alternator has just been installed but the battery is still contueing to be drained?
dead cell in the battery or something is on that is pulling power from the battery.
