Question about 2007 Jeep Wrangler Unlimited Rubicon 2 Doors

3 Answers

2007 Jeep Wrangler Alternator/computer issuses?

I have added a snowplow to a 2007 Jeep Wrangler and the radio goes out/battery light comes on. If you use it for a little longer the dash lights flash and it goes into a survial mode.
The plow is brand new checks out at pulling 100 amps.
I have added a 950 cca battery.
I replaced the alternator which is 160 amps.
Should not be any problems.
When checking the amps coming from the altenator it only produces 95 amps. The Jeep dealer tells me that the computer regulates what it will produce and that they can not reprogram the computer?
Any suggestions?

Posted by on

  • 1 more comment 
  • Anonymous Jan 23, 2009

    I'll be interested in solution, as I have similar problem.

    Do you know what fuse# the controller is connected to?

    I added 2-0 ground from battery to block, and that did not help either.

  • Anonymous May 11, 2010

    Is this during normal plow operation, or only when raising lowering via an electric motor?

    Where did you attach the electrical connections for the plow mechanism?

  • Anonymous May 11, 2010

    is not they can't reprogram the computer, is that they don't know how or they don't have the equipement.

    the equipment to reprogram the computer is about $1,000-$2,000 and not many people know how either.

    I can't suggest anything here either. Since I don't have the equipment.

    do a search on the Internet for "reprograming ECU"

×

Ad

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 26 Answers

I too have a 2007 Jeep Wrangler Unlimited Rubicon and yes the stock battery is too weak to handle large electrical accessories like hydraulic pumps and winches.
While the stock 160 amp alternator 'can' make 160 amps, it idles at about 100 amps. For most applications this is fine.
Giving the engine a little more throttle and holding at 2000rpm should help. Optima batteries are not as good as they used to be, I recently replaced my Optima with Sears Die-Hard Marine Gel.
While a 2nd battery may increase the length of time until drained, it may not be sufficient to plow a mall parking lot etc. street plowing should be ok because you will normally rev over 2000rpm.
For a stationary winch pull I have used a Hyper-Tech ODB2 computer to temporarily raise the idle from 600rpm to 1500rpm. However this May not work I'm your plowing operation.
I installed a Mean Green Alternator producing 210amps just above 1000rpm. It has worked much better for winching and off-road lights. Cost: about $375 at Quadratec.

Posted on Nov 10, 2013

Ad

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

So, How did you end up fixing this problem????? I have same issue. Please post resolution. Thanks.

Posted on Dec 11, 2009

Ad

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Add a second battery

Posted on Oct 03, 2009

1 Suggested Answer

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sometimes my interior and exterior lights including my dash lights , flicker and flash on and off when I am diving at night. What could possibly cause this to happen.


Does it flash like there was a security alert? But without the horn going off! Like 8-10 flashes and then goes back to normal!

If so I had this problem with my Jeep GC a couple years ago and had a hell of a time figuring it out. Got to the point, I wouldn't drive it at night.

When it got cold, sometimes I would have to jump the system to get it started. Checked the alternator, but the voltage show 13 Volts so thought it was okay. Replaced the battery, no change but longer between problems. Replaced battery cables, again no change but much longer between problems. Then I had the lights, AC, radio and everything on at once, and could tell that the electrical system was really stressed. Pushed in the cigarette lighter and the lights flashed before.

Changed the alternator - no more problems. Cured the not starting and lights flashing. The only thing I could come up with is that if the security system detects a low current flow it sets itself off, and then resets itself. So the low output from the alternator would cause the problem when a lot of electrical things were in operation at once.

Jun 05, 2011 | Jeep Grand Cherokee Cars & Trucks

2 Answers

Jeep 2007 Wrangler Unlimited X 4x4 4 Doors


Sounds like a short in the electrical system. Maybe even just a loose ground wire. On the other hand...It could just as easily be a bad ECM (BRAIN)! Warranty still in tact? I hope so. Diagnostic at a certified Jeep shop... Good Luck!

Apr 09, 2010 | 2007 Jeep Wrangler Unlimited Rubicon 2...

1 Answer

My 2005 wrangler has a elec. problem dash lights flash dome lights flash and radio cuts out


you have a short circuit problem its more than likly a broken earth connection

Nov 08, 2009 | 2005 Jeep Wrangler

2 Answers

2004 jeep wrangler unlimited wont start ,4.0l auto , new starter and battery , when turn the key lights come on fuel pump lights in dash.


Nuetral safty switch, Starter solenoid.
Do you have antitheft?
The ground for the starter relay may be computer controlled. Lee

Oct 04, 2009 | 2007 Jeep Wrangler Unlimited Rubicon 2...

2 Answers

97 Jeep Wrangler Dash Gauges Arent Operating..everything else ok!


ck the engine to body ground.located back side of engine and srew to firewall.

Jun 01, 2009 | 1997 Jeep Wrangler

1 Answer

2007 jeep wrangler sahara with a mopar remote starter just beeps


That's not a remote starter on your key chain, it's a keyless entry for an alarm system.

Nov 17, 2008 | 2007 Jeep Wrangler Unlimited Rubicon 2...

1 Answer

2005 Jeep Wrangler Cruise Control


no fuse ...sounds like the switch may have gone bad

Nov 08, 2008 | 2005 Jeep Wrangler

1 Answer

Electrical ?


I have a 1997 jeep wrangler with the same problem and it started when I replaced the stock radio,with an after market one. The dash/parking lights are grounded to the stock radio,so if you can find a good body ground that should fix your problem. good luck.

Oct 25, 2008 | 2003 Jeep Wrangler

1 Answer

1990 Jeep Wrangler Problem:


1990 Jeep Wrangler. Driving with lights on for 10 - 15 minutes. First the dash lights go out followed by the headlight and tail lights. If you pull the dimmer switch back (like you would to flash your brights at someone) the head lights will come on and as long as you continue to pull back on the dimmer switch the head lights will stay on bright.

Sep 30, 2008 | 1990 Jeep Wrangler

1 Answer

1/2 of my hazards will not work '98 wrangler


check the bulbs. sometimes if one is bad it will cause both to stop working.

Sep 27, 2008 | 1988 Jeep Wrangler

Not finding what you are looking for?
2007 Jeep Wrangler Unlimited Rubicon 2 Doors Logo

1,135 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

Marvin
Marvin

Level 3 Expert

85216 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...