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Old 04-03-2013, 02:48 PM   #1
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Question Corroded wires next to battery.

Anyone else had this problem?

My wife's 2005 Wrangler SE, 2.4L has been diagnosed with a corroded engine wiring harness and told that it might not be worth fixing! She takes care of the car, I do the major maintenance items but find it incredible that an 8 year old vehicle could have this happen.

We're hoping the shop can repair the few actually failed wires but that seems to only be a short-term fix.

Other than my first question, does anyone have experience replacing any of the engine wiring harnesses? How hard are the harnesses to get? And how bad of job would this be to do myself? (I have rebuilt transmissions, turbos, etc, etc.)

Any recommendations for where to get a replacement harness?

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Old 04-03-2013, 03:45 PM   #2
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check eBay Amazon 4wd.com and your local parts stores. ive replaced whole harnesses before and if you take your time and Mark everything its pretty simple and easy going. I couldn't believe that something that young would have so much corrosion that it wasn't fixable. not when ive got a 75 dj5 with the original wiring still running. I'd start trying to find why it is doing this ASAP so you dont go fixing it just to have to do the work again.

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Old 04-03-2013, 05:33 PM   #3
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Great, that's what I'm hoping in terms of replacement - take my time, label everything (I might even photograph / videotape the removal process) and hope there aren't too many inaccessible spots. We're told it's the computer harness and the PCM might be damaged too!

They also said it might have been the previous battery that leaked so much, and that the battery is supposed to be cleaned when it's inspected and it looks like that was never done. He said batteries leak whenever they are being charged, a small amount. Bad design on Chrysler's part.

So at least we now know to keep a close eye on that area and make sure it's clean at all times.
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Old 04-03-2013, 07:29 PM   #4
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Quote:
Originally Posted by Grusvag View Post
Great, that's what I'm hoping in terms of replacement - take my time, label everything (I might even photograph / videotape the removal process) and hope there aren't too many inaccessible spots. We're told it's the computer harness and the PCM might be damaged too!

They also said it might have been the previous battery that leaked so much, and that the battery is supposed to be cleaned when it's inspected and it looks like that was never done. He said batteries leak whenever they are being charged, a small amount. Bad design on Chrysler's part.

So at least we now know to keep a close eye on that area and make sure it's clean at all times.
If that is a bad design on Chrysler's part, they share it with about a bazillion other manufacturers. I don't know of any cars in recent memory that come from the factory with a "sealed" AGM style non spillable battery.

I know batteries are a very touchy subject when it comes to favorites and my only advice to anyone with a vehicle they care about is to dump the lead acid engine and harness destroyers and get a "sealed" non spillable AGM style battery regardless of brand.

If you noticed me putting sealed in quotes, do some research on AGM. While promoted as non spillable they are not air tight which doesn't matter as the acid will not leak out.
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