Something keeps draining the battery. Replacing some wires in the engine department hasn't helped. Probably problem elsewhere in the electrical system. Is an electrical schematic available for this Model.
I had a problem at one time that was with an after market ignition switch...it would even with the switch off allow power to the computer and even the fan blower as if it was on. The problem you are having could be many things but just thought I would mention that one I had. I eventually had to open it back up and put it back in place correctly after it had slipped out of place.
You may have what is called a "Parasitic Draw". A draw can come from several different things. It would be best to have your car analyzed at the dealer. However if your going to do your own analysis start by using a power meter attached to battery to determine how much of a draw you have. I had a 4.99 draw on my jeep. You should assume the common thing first the altenator.
I then opened the fuse box located under hood and also on passenger side near carpet (right side). I proceeded to remove each fuse or module one at a time to determine where the draw is. This should pinpoint the problem. If not, then try the engine module located under the hood on back wall passenger side.
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dont run the engine...remove the oil pan plug and drain the oil as long as the car hasn't rain i think your ok in terms of it not being in your engine and just to be cautious buy the cheapest oil you can find along with good oil put a little bit of cheep oil on and drain it put the rest of it in run it and then drain the oil and put the good oil...
no, this will not drain your battery, but it sounds like the battery and charging system are working. there must be a draw on the system, you will need to have someone hook up a tester to check for the draw and work back from what they find.
If you disconnect the negative battery cable and connect a 12V test light between the battery negative post and the negative battery cable terminal the light will burn if there's a draw. Make sure all electrical consumers are off and all doors closed when doing this draw test. If the light is on start pulling 1 fuse at a time until the light goes out, when it goes out that's the circuit that has the draw. Trace it from there.
If the starter is getting proper voltage at main lead and trigger wire (with the key in "start") pull the starter. If it was making strange sounds likely there is something wrong with it. Check flywheel as well and make sure you can turn the engine by hand. If you aren't getting the proper voltage, check the battery, connections and starter relay (in power distribution center)
Assuming that this is concerning a 1996 Grand Cherokee, a new remote needs to be programmed via the Jeeps computer connector, It cannot be programmed by the user for this model. If you buy the remote from the dealer, see if they will program it at no charge (they should). If you bought it elsewhere, you will most likely have to pay for the programming. I got a quote a few years ago for $30, but last week I answered the same question for another user and it cost them $60. Yes, it is a rip-off especially since it takes just a few minutes. Check with other repair shops as some may have the programing equipment needed, at a lower price.