wtf
#1
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Year: 1992
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wtf
So my 92 4.0 has been having excessive battery drain when running. Thought it was the alternator just not charging, swapped in a brand new one and a brand new battery, same problem.
What could it be? One day the check engine light came on, code 47. Since then it's been waayyyy down hill.
Its been jumped, charged, driven around and it'll die in about 4 or 5 minutes.
Please help, it's my only means of transportation.
What could it be? One day the check engine light came on, code 47. Since then it's been waayyyy down hill.
Its been jumped, charged, driven around and it'll die in about 4 or 5 minutes.
Please help, it's my only means of transportation.
#3
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Year: 1998
Model: Cherokee
Engine: 4.0
Disconnect a battery cable. Put an ammeter or test light in series with the cable and battery terminal. (Leave the ignition switch off.) Does the meter show current flow (or the test light glow)? Then you have something drawing current. Pull the fuses one at a time, and when the current stops flowing, that's the circuit to troubleshoot.
#5
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Year: 1997
Model: Cherokee
Engine: 4.0L
I don't recall for sure, but did the Jeep come with a fuseable link between the alternator and the battery. A lot of vehicles use to. If this link is bad then the alternator will not charge the battery. I can think of no other reason why a battery would go dead while the engine is running. If there is no fuesable link in that charging wire then you just have a bad connection between the two.
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#8
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If you saw a steady voltage drop with the engine running then your alternator is not putting out. You need to OWN a 12 dollar multi meter so you can do this simple check for yourself.
One lead on ground and the other lead on the positive post on the alternator. It should read at least 13.5 volts. If it reads less than that then your alternator is not working.
I've seen a **** load of bad alternators straight out of the box.
#9
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Year: 1992
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I haven't gotten around to getting the voltage tested, as I would need someone to pull me to advance and I'm tired of spending money in things so I don't want to buy a multimeter. I know a multimeter will be very useful, but I've spent too much already.
Just installed new battery cables, same issue.
Just installed new battery cables, same issue.
#10
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Year: 1987
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Yet you're still blindly throwing money at problems without proper diagnostics?
You wouldn't be broke if you had that cheap multi meter and you looked into this correctly.
You wouldn't be broke if you had that cheap multi meter and you looked into this correctly.
#12
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I had already purchased the battery cables and planned on putting them in before this issue first appeared.
#14
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Year: 1992
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