need help ....

steve03sport · **Posted:** Mon Aug 29, 2011 9:03 pm

so my battery died.. or so i thought. then had alternator tested and was told it wanst putting out power, told i needed new 1 so i bought 1. installed it and tested it again and still not putting out any power? :banghead:

so my buddy said sounds like the ecu. ? what do you guys think? and can they be plug and play?

JeepinJarhead03 · **Posted:** Tue Aug 30, 2011 2:02 am

ECU has to be programed with your VIN and an ODO to match your gauge cluster otherwise the vehicle will not run beyond turning over and knocking off

You've checked the fuses/relays/fuseable link, connectors etc right?

not saying it's impossible to get a bad alternator, but usually when they come defective they'll work for about 20 mins then pop

steve03sport · **Posted:** Tue Aug 30, 2011 9:19 pm

took it to a dealer today,,,,,,, and after 6 hrs and me bitchin to get an anwser they still cant figure the problem or tell me if the ecu is dead :banghead:

if the ecu is dead will the jeep run at all?

Boomerang · **Joined:** Tue Jul 26, 2011 7:46 pm **Posts:** 184

ECU?
engine computer?

RED_KJ_666 · **Posted:** Fri Sep 02, 2011 5:38 pm

I'd say that's what he's talking about Boomerrang it's what controls the output of the Alternator.

steve03sport · **Posted:** Mon Sep 05, 2011 7:49 pm

yea any ideaS?

tjkj2002 · **Posted:** Mon Sep 05, 2011 7:55 pm

The only way to test your alternator(for the KJ) is via the DRBIII or StarScan(year dependant) as the voltage regulator is in the PCM.If you swapped alternators already that is not your issue so return the one you bought and put your old one back on.You can varify that all the wires are not bad using a DMM,besides that the dealership should make quick work of the faulty part unless they gave it to a lube tech to do then it could take weeks.

steve03sport · **Posted:** Mon Sep 05, 2011 8:38 pm

what is dbr?

tjkj2002 · **Posted:** Mon Sep 05, 2011 8:43 pm

steve03sport wrote:

what is dbr?

The DRBIII(and others)............

http://www.oemtools.com/homeproducts/chrysler.html

steve03sport · **Posted:** Mon Sep 05, 2011 8:45 pm

what do you think the problem with my jeep is?
neither alternator is putting out anything

steve03sport · **Posted:** Mon Sep 05, 2011 8:46 pm

how should i approch fixing this

steve03sport · **Posted:** Wed Sep 07, 2011 6:04 pm

where is the fuseable link? can any of you please post a pic of it or where it is and how to check it

steve03sport · **Posted:** Thu Sep 08, 2011 3:20 pm

tom ?

JeepinJarhead03 · **Posted:** Thu Sep 08, 2011 4:17 pm

it's on the red lead from alt to power distribution / batt

Get the DRB ran before you start chasing chickens for dinner with no grease in the pan

RED_KJ_666 · **Posted:** Thu Sep 08, 2011 5:39 pm

JeepinJarhead03 wrote:

it's on the red lead from alt to power distribution / batt

Get the DRB ran before you start chasing chickens for dinner with no grease in the pan

X2

steve03sport · **Posted:** Fri Sep 09, 2011 7:59 am

where do i get a dbr ran?

steve03sport · **Posted:** Fri Sep 09, 2011 7:59 am

DRB sorry

gtommec · **Posted:** Sat Sep 10, 2011 2:49 am

steve03sport wrote:

DRB sorry

Any Chrysler dealership, also some smaller shops may have it but probably not many (i have a friend that works for AAA here and they have a DBR in their shop)

JeepinJarhead03 · **Posted:** Sat Sep 10, 2011 9:41 am

alt's about the only time i tell people to go to a dealership unless i just don't like them and then the answers just dealershipkthxbye

ridenby · **Posted:** Sat Sep 10, 2011 1:47 pm

Did you replace battery? If not do so. Take new alt back or keep it if they took your old one as core. Testing alt. on Libby is darn near impossible with most part house tools,they ALWAYS tested bad when I worked at vatozone,mine included. Are you driving Libby?

need help ....

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