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post #16 of 28 Old 12-26-2015, 01:35 PM
GrumpyOldTom
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Looks like I may be in on this one. 2012 Grand Cherokee Laredo, 5.7L with tow package and 430N radio. Once before (1-1/2 years back) my wife had the battery just die on her and she had to walk home. We just went through another issue where the car wouldn't start and the battery was drained. But I put the charger on it, ate supper, came down and started it. Checked terminal voltage while running, it was 14.36-14.49. Took it to the parts store, they load tested the battery and it was okay. Started it at the parts store, no problem. Took it home, restarted it, no problem. The next morning it was sluggish, but it started. We've had intermittent sluggish starts since then, but not a dead battery.

I have to have that fuel pump relay installed (recall) so I'll ask about this one. The complete randomness of it fits the description above, but it's a US domestic WK2. My wife drops my (autistic) son off and picks him up 4 days/week, with only about a mile each way, so even though it only has 23K miles, it sees a lot of starting duty, with little time for recharge, but the battery seems healthy.

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post #17 of 28 Old 12-27-2015, 08:02 PM
GrumpyOldTom
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Update to above, it finally happened to me today. The Jeep had been sitting since the 24th, we were headed out, and the battery was dead. 8.18 V on the multimeter. I'm charging the battery now. This is kind of whackadoo, as it is now happening with a greater frequency. It's not good to draw down a battery like that, I wonder if this issue has impacted the life of the battery?
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post #18 of 28 Old 12-28-2015, 10:05 AM
GrumpyOldTom
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Aaaaand the story continues... Took the charger off last night, battery full, started right up. I let it run a very short time and shut it down. This AM, started right up. Drove about 6 miles, it set for an hour, drove 1 mile, set for an hour, drove about 500 ft, did an errand, started right up, drove it home, no problem. I don't see how this could be the battery; something is draining it.

I followed the TSB posted by Ryan and the software is not an issue, they mention application version 10.0.(something) mines 33.0.(something).

BTW, I can't find a thread on this, nor anything the other site - is the front windshield washer pump under the washer fluid reservoir? Do I have to yank the reservoir out to get to it?

Thanks all.
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post #19 of 28 Old 12-28-2015, 01:26 PM
ColdCase
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The pump is at the bottom of the reservoir, you don't need to remove the reservoir..

"The washer pump/motor unit is located on the top of a sump area on the outboard side of the washer reservoir, which is located between the left front fender and the fender inner shield ahead of the left front wheel and the front wheel house splash shield. "

#4 in the figure below. You get at it from under the Jeep, pulling the liner back. It snaps into the reservoir. You may have to remove some of the liner push pins that attach it to the front facia to get enough room.

"8.Pull lightly outward on the top of the washer pump/motor housing away from the washer reservoir to disengage the snap post on the top of the motor from the receptacle in the reservoir.

9.Using hand pressure, firmly grasp and pull the washer pump upward far enough to disengage the pump inlet nipple from the rubber grommet seal/filter screen in the reservoir. Care must be taken not to damage the reservoir."
:
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I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #20 of 28 Old 12-28-2015, 04:03 PM
GrumpyOldTom
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Much thanks, ColdCase! I don't know if mine clonked or is clogged, but it isn't spraying. The one in back is fine.

But I imagine that'll be easy compared to finding out where the electrons from my battery are floating off too!
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post #21 of 28 Old 12-28-2015, 06:27 PM
ColdCase
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A single reversible pump sprays both the rear and front windows. The pump has two nipples, one for front windows, one for rear. The pump spins in one direction for front, the other direction for rear. If it was clogged, you probably would not get water anywhere.

A second pump sprays the headlights (if equipped).

I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #22 of 28 Old 12-30-2015, 06:16 PM
GrumpyOldTom
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Hmm. So either 1 direction on the pump isn't working (switch/wire/relay issue) or the hoses/sprays for the front are clogged, most likely before the split to the individuals - both clogge simultaneously seems odd. Thanks again, that sure helps.
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post #23 of 28 Old 10-21-2018, 07:53 AM
RT0870
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Out of nowhere, both front and rear stopped working on my 2018 WK2. When I push in on the stalk, or twist for the rear, I can hear the pump working, but no fluid.

I looked through the manual, and didn't find any related fuses or relays in the fuse box. Any input you can provide is greatly appreciated!!

Still under warranty, just hoping for some insight before I go to the dealership.

Thanks in advance...
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post #24 of 28 Old 10-21-2018, 12:44 PM
ColdCase
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Since you hear the pump working, its unlikely a fuse. Perhaps the impeller is slipping on the motor shaft, the fluid pickup/strainer is clogged/dislodged, a hose or two fell off, or perhaps there is no fluid in the reservoir.

I'd check the fluid level (maybe refill) before going to the dealer. If you get a spray, then you can complain to the dealer about not getting a low washer fluid indication. Sometimes the sensor gets contaminated by washer fluid additives or is faulty.
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I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #25 of 28 Old 10-21-2018, 02:09 PM
RT0870
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Agreed.....I just wasnít sure if there was another component that worked in conjunction that may have a blown fuse. Iíve looked under the GC for any puddles/spray and didnít see a thing.....and, the reservoir is topped off.

I figure itís clogged/obstructed or the pump itself is having an issue.

Iíd rather have teeth pulled than have to visit the dealer 🤬

Thanks again for your input!!

2004 Grand Cherokee Laredo "Freedom Edition"
2009 Wrangler Sahara Unlimited
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post #26 of 28 Old 10-21-2018, 04:10 PM
ColdCase
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Yeah, there is nothing more to it than the cabin node sensing the washer switch position, sending a command to the TIPM. The TIPM sends current to the motor to spin it one way or the other, a bunch of hose and a couple nozzles.

I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #27 of 28 Old 10-21-2018, 04:44 PM
RT0870
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Pretty straightforward....hopefully the dealer wonít keep it for days.

Thanks again ✅

2004 Grand Cherokee Laredo "Freedom Edition"
2009 Wrangler Sahara Unlimited
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post #28 of 28 Old 10-22-2018, 01:02 PM
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Quote:
Originally Posted by RT0870 View Post
Pretty straightforward....hopefully the dealer wonít keep it for days.

Thanks again ✅
Hi RT0870,

If you are in need of an additional layer of assistance while your Jeep is in service, please send us a private message.

Darlene
Jeep Social Care Specialist
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