Question about 2005 Jeep Grand Cherokee Alternator Mean Green
So i replaced the battery ten days ago because i came out of work and it was dead i was able to get a jump from my friend and we went to walmart and bough a brand new battery. well on my way home from walmart my battery light came on and my friend told me [ he is a machanic but just isnt a 100 percent sure as to what my resulting problem is] it is the alternator when that light comes on. so i have been using my moms car because she doesnt want me to get stranded. well out of those ten days i have started my jeep every other day, but about three days ago i came out and my new battery was drained and wouldnt start. so i went online and found an alternator in b condition from a salavage place. me and my bf uninstalled the old one and replaced it with the one from the salavage place... we jumped started my car because the battery was dead and within minutes the battery light came on as well as my: abs light, my passanger driver seat belt [no one was sitting there] my E brake light and my traction light, and then shortly after my gauges for my gas and my RMPS both went down to zero as if the sensor for the gauges is broken. so we unistalled the used alternator and brought it to auto zone- i had the kid check it three times because if i didnt need to spend money for a new one i wasnt going to; all three times the alternator passed. so once again we went back to my house and installed this same salvaged alternator again... we let the cables sit on the battery for about five minutes because it was completely dead. and then we jumped it and it roared right up but again all the lights on the dash came on again and the gauges did the same thing again. I read that if i reved the engine to 25 rmps that it might rekick the magnets in the alternator because maybe it had been sitting and when i took my foot off the gas it slowly started to die. my boyfriend and i dont have a voltometere but it is a brand new battery and i had the alternator checked three times .... it still could be the alternator but for all those sensor lights to come on i dont think that is the alternator. as for the car dying i dont know what to do besides to spend 120 dollars for a brand new one, but i am at wits ends. if anyone knows what sensors or maybe what fuses to replace for this weird situation im ready to try it, but i have checked the two fuse boxes under the hood of my car and i didnt see any with a broken fuse. so doesnt anyone think that maybe it could be one of my engine spark plugs that could be fried.... I can tell you my engine light is not on, and the light isnt broken so i just couldnt see that being the reason..... AHHH please help!
I had a very similar issue with my Blazer. Truck died pulling into my driveway one night...I got an alternator and replaced it right then, jumped it and let it run to charge the battery. Ran fine for a couple of days then one DAY it wouldn't start when I came from out from the store. I knew the alternator was good because it was brand-new. Bought a new battery and put it in. truck started but I noticed that the voltmeter gauge wasn't showing the normal 14volt charge. I went to Autozone to have them check the alternator, it checked fine with the hand-held machine in the parking lot so I pulled the new alternator off immediately and took it inside to be tested on the big machine...It tested good 3 times. After a little discussion about the problem they agreed to give me another new alternator (it was still under warranty). I put it on in the parking lot and VIOLA!...problem solved. The synopsis is this...the bad alternator damaged the old battery so it wouldn't accept and store the 14volts that the new alternator was putting out. The extra "pull" from the damaged battery, in turn, damaged the internal voltage regulator on the NEW alternator. Through this 2 week process I was getting weird warning lights on the dash and various other oddities. New alternator + new battery = problem solved = no headache/worry = happy! Good luck!
Posted on Jul 26, 2013
Don't spend money on another alternator. Spend money to have it properly diagnosed, I mean the charging system. The used alternator is probably good after 3 tests. There may be a fusible link between battery and alternator, an in-line fuse, or a maxi-fuse (under the hood) between battery and alternator. Or Colin may be right about the computer-which again means diagnosing the problem.
Take your battery off and have it charged up-someone you know must have a battery charger. You can charge it up with it still on the vehicle, but first remove the negative battery terminal.
Possibly, all the lights came on because battery was drained and alternator was not putting out power. Once you fix the charging system or circuit, everything may resolve out. But you should start with a freshly charged battery.
Posted on Jul 13, 2013
Sorry not an expert on american versions of this vehicle as they do differ from europeon ones .Ours are mainly diesels but as this is a 2005 model and no doubt a gas guzzler by europeon standards try 10 dollars a gallon but all this aside if its showing all these warning lights on the dash then i think you may have a fault with the computer as the low battery voltage could have damaged the computer ,not sure on this but it does happen quite often with renaults of a certain age so i can only advise you to ask a local mechanic to have a look for you and check it out .without my head under the bonnet sorry hood and my number two hammer in my hand i couldnt tell you ,only wish i could but its difficult to diagnose this sort of fault from alicante spain
Posted on Jul 12, 2013
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 16, 2016 | Cars & Trucks
Oct 01, 2015 | 2002 Ford Taurus
Nov 16, 2013 | Toyota RAV4 Cars & Trucks
Mar 18, 2011 | 2001 Ford Focus
Dec 31, 2010 | 2000 GMC Yukon Denali
Dec 11, 2009 | 2005 Nissan Altima
Jul 03, 2009 | Dodge Intrepid Cars & Trucks
Jun 20, 2009 | 2000 Porsche Boxster
Nov 15, 2008 | 2006 Ford F-250 Super Duty
158 people viewed this question
Usually answered in minutes!
Level 3 Expert
Level 3 Expert
Level 3 Expert
Step 2: Please assign your manual to a product: