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startin and charging issues

Old Nov 14, 2013 | 10:36 PM
  #1  
Jeepjunky's Avatar
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From: somewhere Gee oh Dee cant find me...
Year: 1995
Model: Cherokee
Engine: I6 4.0L
Default startin and charging issues

alright, so for a couple of months now i have been having starting issue that has progressively gotten worse. cranks for awhile and then it will start, now i have to try crankin it about 3 times while pumping the gas to get it to start. doesnt matter how long it sits either it could be for the night or just a couple of hours and between 3 jobs a day im too burned out by the end of it all to try anything. from what i have searched, it might be the fuel pump, fuel regulator, coil, or CPS.

as for the starting issue thats been goin on for a couple of years and im finally fed up with it because of the starting issue. it seems to act like the alternator cant handle stock loads (normal headlights, heater, and radio) going at the same time when stopped or when slowing down to turn. i have been having to turn off the heater and radio when stopped or turning so the volt meter doesnt drop to 10-12V and start squealing the belt. the alternator was replaced with and brand new one 3-4 weeks ago and the battery was replaced at the beginning of summer. and i do have some aftermarket accessories of a CB and Sub and Amp but i doubt those have anything to do with it cus it will still do it with both turned off.

any ideas on these would be awesome
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Old Nov 15, 2013 | 12:22 PM
  #2  
Jeepjunky's Avatar
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From: somewhere Gee oh Dee cant find me...
Year: 1995
Model: Cherokee
Engine: I6 4.0L
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Its a 95 xj 4.0 in case that was making it too hard lol
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Old Nov 15, 2013 | 12:45 PM
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Roler's Avatar
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From: Australia
Year: 1997 (RHD)
Model: Cherokee (XJ)
Engine: 4.0 ltr
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Well, a few things you can do to narrow things down.
Have alternator and battery load tested. Although new, you want to have this verified.
You can also test your alternator/charging system ' on car'. Measure voltage battery with engine off, measure is then with engine idle. You're looking for increase voltage of > 0.5 Volt, preferable in range of high 13's (13.6-9 or higher).
Then, with engine on, start all your accesories on board, like headlights, stereo, A/C, whipers etc etc and recheck your voltage, again you want it to be at least > 0.5 Volt above baseline. If so, your alternator is pretty much ok.
If not, don't condemn your alternator just yet. Check voltage drop across the connections between alt and batt as well!

So, take some time and get to know the ways of testing your charging system.
Here some links:

(how to test charging system)
(how to diagnose alternator problems)

Hope this is helpful.
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