89 jeep Cherokee with a brand new alternator and battery but the battery will not stay charged

Question

the truck has to be jump started every time what could the problem be? could it be the distributor or some other electrical hiccup the battery and alternator are brand new Please any help would be greatly appreciated

Answer 1

you must have a draw(short). unhook the battery neg terminal. put a test lite of voltmeter between the neg battery post and the neg wire. if it lites u have a short somewhere. to pin point pull each fuse til u find the bad curcuit. if cant find, its b4 the fuse panel....under hood. good luck

Answer 2

Like everyone hads said,you have a short some where causing the battery to be drained. If there not anything on in the car causig it to drain.Then the most likely place to look is on the engine , to see if there's  a wire melted and touching the engine block . Be sure to look down around the starter.

Answer 3

you either got a faulty battery or alternator, just because their new doesn't mean that they are always right, get them both checked out with a charging system check.

Answer 4

Check to see where your draw is. You have something drawing power constantly. Try this turn off the Jeep and go along with a multi-meter checking your fuses in the engine compartment and inside for anything that shouldn't have power while the key is in the off position. Normal reading should be 12 volts.

Answer 5

i think you need to buy a new batterey, and then trickle charge it ( slow charge) because batterey acid is not what starts your engine, its the amperage that you charge into it.

Answer 6

you have a short somewhere. a wire is shorting out.

Answer 7

you have a power draw,which drains the battery,it could be something simple,but unless u r mechanically inclined,take it 2 a shop

Answer 8

Well you just spent a lot of money looking in the wrong place!  Have you had charging system checked on car in circuits it lives with?  New components on defective wiring will not work any better than old "good working' components in same circuits!

Checking individual parts only tells you those parts are good,- what about the rest??  

And then there is the rest of the car! A properly working charging system will not make battery hold charge, -- if something is drawing power from battery all the time! Try disconnecting battery when you shut it off, - especially overnight.  If re-connecting it starts car fine, -then it proves something is running it down when parked! Start pulling fuses, and disconnecting accessories you have added till you find offender, - check to make sure you do not have dimmer control turned all the way to limit, some cars turn on the courtesy lights when in this position, and they naturally will run battery down!  You can add a test light between one battery cable and battery-, and when light goes out or very dim, you have all major things disconnected (that pull power)! I use an old headligh tbecause it is easy to see from indside car! The test lights can be bought for less than $5 almost anywhere car parts are sold!  The computer and radio memory and clock pull very minute amounts of power - if light is not bright( it is almost nothing being used in these things)!

Does the battery check out as having a full charge-- and still doesn't start?  if so it is possible that starter itself is about to totally die, -- this is very uncommon, but sometimes the extra power form jump is enough to make it kick in --- remember that usually "jumper car" has engine running, and that makes voltage a couple volts higher (possibly enough to kick starter in)!