1995 XJ - Completely Dead Electrically
CF Veteran
Joined: Mar 2010
Posts: 47,923
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
1) Put in good battery.
2) DO NOT hook up negative cable to battery.
3) Hook up positive cable to battery.
4) Connect a 12V Test Lamp between neg battery terminal on battery and to the negative cable in Jeep.
Lamp will only illuminate if there is a short on the positive side to ground completing the circuit. Right? ( makes sense to me so far )
Then pull one fuse at a time until the Test Lamp extinguishes and when it does that fuse is in the shorted circuit.
RIGHT?
Here some questions in my head .......
Why didn't fuse blow as a result of the short to begin with?
This has to be a pretty heavy short on the positive cable somewhere ( maybe unfused segment ) to cause the battery terminal to blow out like it did..... no?
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Trying to wrap my head around this. ( it's 5 am )
1) Put in good battery.
2) DO NOT hook up negative cable to battery.
3) Hook up positive cable to battery.
4) Connect a 12V Test Lamp between neg battery terminal on battery and to the negative cable in Jeep.
Lamp will only illuminate if there is a short on the positive side to ground completing the circuit. Right? ( makes sense to me so far )
Then pull one fuse at a time until the Test Lamp extinguishes and when it does that fuse is in the shorted circuit.
RIGHT?
Here some questions in my head .......
Why didn't fuse blow as a result of the short to begin with?
This has to be a pretty heavy short on the positive cable somewhere ( maybe unfused segment ) to cause the battery terminal to blow out like it did..... no?
1) Put in good battery.
2) DO NOT hook up negative cable to battery.
3) Hook up positive cable to battery.
4) Connect a 12V Test Lamp between neg battery terminal on battery and to the negative cable in Jeep.
Lamp will only illuminate if there is a short on the positive side to ground completing the circuit. Right? ( makes sense to me so far )
Then pull one fuse at a time until the Test Lamp extinguishes and when it does that fuse is in the shorted circuit.
RIGHT?
Here some questions in my head .......
Why didn't fuse blow as a result of the short to begin with?
This has to be a pretty heavy short on the positive cable somewhere ( maybe unfused segment ) to cause the battery terminal to blow out like it did..... no?
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
A visual inspection should show it rather quickly.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
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From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
NOTE: This may have be his intermittent problem finally becoming not intermittent.
In the past he has experienced momentary loss of all electrical after hitting a bump. If engine RPM's were high enough it would hiccup and keep running. At slow speeds it would die and need to be restarted with key. This sort of tells me something is moving and shorting....and now it is flat out shorted.
In the past he has experienced momentary loss of all electrical after hitting a bump. If engine RPM's were high enough it would hiccup and keep running. At slow speeds it would die and need to be restarted with key. This sort of tells me something is moving and shorting....and now it is flat out shorted.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
This issue arriving after hitting bumps to me says plates in battery are loose and touch causing internal short which will wreak havoc on electrical systems if it continues to happen. Can and will fry ecm alt and many other circuit in vehicles.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
If the battery was compromised internally would it have blow out the positive terminal like that?
I've seen internally shorted batteries and they tend to show case problems ... swelling/cracked.
Battery is out of the vehicle and with a digital meter it is showing
12.45 Volts off charger
13.50 on charger
I am concerned about my initial testing with the ohmmeter between the positive battery cable and vehicle ground ... it's showing damn near a dead short!
Battery is on it's way to be tested properly soon!
$70 for a new, good battery is expensive. However, I'd rather pay that than having to replace a bunch of other stuff/Chase electrical issues. Also I'd do my battery cables, especially the positives, just to totally eliminate anything there. I'm a bit of a wimp when it comes to that and I'd rather replace for peace of mind. I've seen what the good enough attitude and bad battery cable cab do first hand and that ended in the loss of my buddys custom $60k f-450.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
As to the battery - just got a call and it tested as being good but in need of a charge.
( still I think I might change it out )
Last edited by KD3NE; Feb 4, 2014 at 11:17 AM.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 719
Likes: 0
From: Bel Air, Maryland 21015
Year: 1995
Model: Cherokee
Engine: 4.0
$70 for a new, good battery is expensive. However, I'd rather pay that than having to replace a bunch of other stuff/Chase electrical issues. Also I'd do my battery cables, especially the positives, just to totally eliminate anything there. I'm a bit of a wimp when it comes to that and I'd rather replace for peace of mind. I've seen what the good enough attitude and bad battery cable cab do first hand and that ended in the loss of my buddys custom $60k f-450.
I am with you ... not trying to 'cheap out' but I want to make sure that the problem ( the short ) is located and repaired in such a way that it won't return anytime soon.


