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Unread 06-10-2014, 03:26 PM   #1
Alexandru999
Registered User
1997 ZJ 
 
Join Date: Dec 2013
Location: Laval, QC
Posts: 72
4.0 start issue

Hey guys

recently im having problems, the 4.0 will start slow

battery is a 2 y old heavy duty mopar, and the alternator works ( i checked both) battery has over 12.6V engine off, and 13.6 stable engine on

battery is clean, and the connectors have 0 dirt and such

its like a "ium, iummmmmm, vrummmmm" , no "foreign" sound to indicate a starter problem, although its not excluded

thing is, my jeep always had a DECENT start, and starting it right up after a shot drive was a PERFECT start ... now its the opposite, if i drive, and start 20-30 min after, its even slower

it kinda started doing this after i cable boosted my uncles jeep liberty .. idk if related or not

any suggestions ? thanks

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Unread 06-10-2014, 04:22 PM   #2
dusterdude
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1996 ZJ 
 
Join Date: Jan 2012
Location: hopewell, va
Posts: 2,043
Are you sure the fuel system isnt bleeding down on you?
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Unread 06-10-2014, 04:49 PM   #3
Alexandru999
Registered User
1997 ZJ 
 
Join Date: Dec 2013
Location: Laval, QC
Posts: 72
Quote:
Originally Posted by dusterdude View Post
Are you sure the fuel system isnt bleeding down on you?
dont think so, no scent, no leaks, it runs great, just the start
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Unread 06-10-2014, 06:55 PM   #4
zj97ltd
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1993 ZJ 
 
Join Date: Apr 2013
Location: Cape Coral, FLORIDA
Posts: 1,042
I'd put a load tester on that battery to rule it out, especially if you started having problems after jumping someone else. My old '97 ZJ couldn't get more than about 2 years out of a battery.
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Unread 06-10-2014, 07:35 PM   #5
Alexandru999
Registered User
1997 ZJ 
 
Join Date: Dec 2013
Location: Laval, QC
Posts: 72
Quote:
Originally Posted by zj97ltd View Post
I'd put a load tester on that battery to rule it out, especially if you started having problems after jumping someone else. My old '97 ZJ couldn't get more than about 2 years out of a battery.
my last battery was for 7 years, a 2 y old heavy duty mopar done? but will do, thanks, pfff headaches
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