Stalling...catastrophic? - JeepForum.com
 
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post #1 of 5 Old 01-05-2017, 06:43 PM Thread Starter
bfrat
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1997 XJ Cherokee 
 
Join Date: Mar 2014
Location: Des Moines
Posts: 19
Xj Stalling...catastrophic?

So it's got cold here in Iowa and seems to have an affect on my '97 Cherokee Sport. First, while in reverse pulling into the garage on a sleight upward grade it stalled out. Not sure why but it happened when I took my foot off the accelerator while lining it up in the mirrors. Two days later, Jeep started fine, nothing unusual. Ran some errands, had 2 beer at a pub. Driving home notice the CHECK GAUGES came on and battery gauge flatlined while at a red light, but Jeep ran fine. So, I put into neutral and pumped the accelerator a few times and it seemed the Jeep was misfiring or about to stall so I put into drive and successfully got home. Searching Forum for info but I'm not sure where to go with this, seems it could be electrical or fuel problem. Any insight on where to start would be great. Jeep is all stock, 4 L. I've included some repairs that have been done in the recent few years.
11/12/10 replace valve cover gasket
2/28/11 fuel line leak/repair
6/23/11 catalytic converter, oil sens asc w/ gauge
6/29/11 replaced O2 sensor
7/15/11 power steer pump/res.
2/20/12 oil change
3/28/13 spark plugs, oil change
1/31/13 new battery under 3yr warranty
3/17/14 replace battery term/cables
3/22/14 replace new battery under 3 yr war
6/22/15 replace alternator
7/16/15 muffler, rotor, dist cap, wires, oil change
9/14/15 diag/repair starter wire
2/22/16 replace up/lwr rad hoses
3/30/16 replace h2o pump gask, serp belt, hose clamps


Frat
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post #2 of 5 Old 01-05-2017, 08:08 PM
BagusJeep
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What codes did you pull? Do you know how to? There is a reason the CEL came on.

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post #3 of 5 Old 01-06-2017, 04:56 AM
CJ7-Tim
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The symptoms describe low battery voltage from a faulty battery/alternator or poor connections.

If the dashboard volt gauge shows 9 volts you very likely have an alternator issue. If the dashboard volt gauge shows 19 volts you very likely have a connectivity issue such as, corroded/damaged/loose connections or internally corroded cables.

Find a parts store or repair shop that will test the battery and alternator inside a test machine using a simulated work load. Hand held testers are not accurate, and usually pass marginal batteries and alternators. Just because you installed something recently does not mean it is still good. "Rebuilt" parts are often rebuilt poorly with low quality parts.

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post #4 of 5 Old 01-13-2017, 11:42 AM Thread Starter
bfrat
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1997 XJ Cherokee 
 
Join Date: Mar 2014
Location: Des Moines
Posts: 19
Alternator was purchased New, not a refurbished one. Battery seems to new as well to be the issue and I'd begin to think it has more to do with connections and corrosion since its 20 years old. . I've not gone to have codes pulled yet but will on a warmer day. Other than the direct connections to the battery, what other connections should I look at to clean. It almost stalled again after I was out shopping and it was sitting in the cold evening. Seems to be amplified issue when it's been out in the cold.

Thanks all.
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post #5 of 5 Old 01-13-2017, 12:25 PM
bluejunior
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I'd trust a refurbished Denso alt a hell of a lot more than a new chinese reproduction, but I'd suspect the battery or the connections first in this case. Clean up your grounds (including the ones behind the driver's side quarter panel plastic in the trunk) and clean or replace your battery terminals and see what it does. If you suspect fuel, O'reilly rents a fuel pressure gauge that works pretty well.

Have you put a multimeter across the battery terminals to get voltage while it's both off and running yet? If your alt and battery is good it should show a little over 12 while off, and pretty close to 14 while on. Due to the low current from the meter that won't reveal a bad connection (by comparing terminal vs post readings) in most cases but it's a reasonably good indicator of a shot alt or battery, if not of those on the way out. Another decent test is to look for a major voltage drop when accessory draw is involved, like having the headlights and interior lights all on.

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