New owner of a 2005 WK limited - JeepForum.com

 
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post #1 of 12 Old 10-22-2013, 12:43 PM Thread Starter
badboyplaya
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2005 WK 
 
Join Date: Oct 2013
Location: Toronto
Posts: 2
New owner of a 2005 WK limited

Hi Guys, just joined, bought another WK for winter, nice truck, one owner dealer maintained,

all service is up to date, dealer said it needs Diff/tranny service? do i need it?

its got 146,000km,

Truck drives great but after I hit 100km/r i hear a humming/whistle only when i accelerate, nothing when coasting, what could it be?

Thanks.

2005 jeep grand cherokee 5.7 HEMI

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post #2 of 12 Old 10-22-2013, 12:48 PM
Jeepforthewin
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2010 JK Wrangler 
 
Join Date: Jan 2013
Location: Jacksonville
Posts: 2,134
Great looking Jeep and welcome to the Forum! Good choice going with the HEMI as far as the noise issue. I'm not to sure I havn't personally heard any problems similar that I can think of.

2010 JKU - Stock for now
2005 WK - 6" lift, 35" BFG's, a lot more (SOLD)
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post #3 of 12 Old 10-22-2013, 01:42 PM
TeXJ
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1997 XJ Cherokee 
 
Join Date: Sep 2006
Location: Allen
Posts: 61
The noise could be the gears inside the diff. You have a drive side and a coast side on your ring and pinion. What do they mean by "service" of the diff/tranny? Is that just a fluid change, or something more?

Mine: 97, auto, 4" lift, locked 33s
Wife: 2008 WK limited 4x4 4.7l
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post #4 of 12 Old 10-22-2013, 05:37 PM
Jeepforthewin
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2010 JK Wrangler 
 
Join Date: Jan 2013
Location: Jacksonville
Posts: 2,134
146,000km equals out to close to 91,000 miles. The diff and tranny fluid are supposed to be replaced at the 60,000 mile service.

2010 JKU - Stock for now
2005 WK - 6" lift, 35" BFG's, a lot more (SOLD)
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post #5 of 12 Old 10-23-2013, 10:20 AM
05wkmoneypit
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2005 WK 
 
Join Date: Oct 2013
Location: Lapeer
Posts: 4
I had the same problem. It was the ring and pinion. You will have to replace the gears as well to get rid of the noise because of the metal shavings scarring the gears. Sucks i just had them replace the ring and pinion cuz the gears are very expensive to replace.
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post #6 of 12 Old 10-23-2013, 08:25 PM
Steelear
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2005 WK 
 
Join Date: Dec 2011
Location: Asheville
Posts: 12
Quote:
Originally Posted by 05wkmoneypit View Post
I had the same problem. It was the ring and pinion. You will have to replace the gears as well to get rid of the noise because of the metal shavings scarring the gears. Sucks i just had them replace the ring and pinion cuz the gears are very expensive to replace.
This doesn't make a lot of sense. The ring and pinion are the main "gears" in an axle center section. There are side gears and spider gears in an open differential. If you jeep has a limited slip differential the side gears and spider gears are replaced by the limited slip which contains a pack of clutches to apply torque.
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post #7 of 12 Old 10-23-2013, 08:51 PM
TeXJ
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1997 XJ Cherokee 
 
Join Date: Sep 2006
Location: Allen
Posts: 61
Quote:
Originally Posted by Steelear View Post
This doesn't make a lot of sense. The ring and pinion are the main "gears" in an axle center section. There are side gears and spider gears in an open differential. If you jeep has a limited slip differential the side gears and spider gears are replaced by the limited slip which contains a pack of clutches to apply torque.
Not sure why you think his comment doesnt make sense?

video for you:
http://youtu.be/3oAFc-_g3ZA

the spider gears sit in a carrier, the carrier is attached to the ring gear, the pinion gear contacts your ring gear. This connection is the coast/drive sides I was talking about.

Mine: 97, auto, 4" lift, locked 33s
Wife: 2008 WK limited 4x4 4.7l
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post #8 of 12 Old 10-24-2013, 06:04 PM
Steelear
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2005 WK 
 
Join Date: Dec 2011
Location: Asheville
Posts: 12
I guess it was just his use of "the gears". When most people mention replacing the gears they are speaking about a new ring and pinion set. When I read it i thought he was saying that the R&P was not that expensive but it was the side/spider gears that drive the cost up. Like you said if you have a drive/coast issue it will be with your R&P 99% of the time. The cost of the ring and pinion is 3 times that of the side gears and spider gears. I am familiar with how an axle works and have installed a few lockers so I am not a novice to the subject.
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post #9 of 12 Old 10-24-2013, 10:10 PM
TeXJ
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1997 XJ Cherokee 
 
Join Date: Sep 2006
Location: Allen
Posts: 61
Quote:
Originally Posted by Steelear View Post
I guess it was just his use of "the gears". When most people mention replacing the gears they are speaking about a new ring and pinion set. When I read it i thought he was saying that the R&P was not that expensive but it was the side/spider gears that drive the cost up. Like you said if you have a drive/coast issue it will be with your R&P 99% of the time. The cost of the ring and pinion is 3 times that of the side gears and spider gears. I am familiar with how an axle works and have installed a few lockers so I am not a novice to the subject.
no worries

Mine: 97, auto, 4" lift, locked 33s
Wife: 2008 WK limited 4x4 4.7l
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post #10 of 12 Old 10-26-2013, 08:48 AM Thread Starter
badboyplaya
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2005 WK 
 
Join Date: Oct 2013
Location: Toronto
Posts: 2
I took it to my transmission guy, he said truck runs great, he said its the gears, not a big deal right now, it only happens at 100kms and up, he said live with it for now, ( he said if its was the pinion bearing it would also do it at low speeds) he will put the scanner on it next weekend and change the diff fluid and do a tranny service, thanks for the feedback gents...

love the truck but the gas mileage is worse than my ///M5. any advice besides drive slow...lol
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post #11 of 12 Old 10-26-2013, 10:37 AM
05wkmoneypit
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2005 WK 
 
Join Date: Oct 2013
Location: Lapeer
Posts: 4
That is what the transmission guy told me. To replace the ring and pinion i got charged 765. With the other "gears" to be replaced also it would have been 1300 total. Which at the time, it was a lot. This was a week after i bought it and the dealer said it had a full warranty which included the ring and pinion and such. But when i called the insurance conpany the dealer forgot to mention it only was good up to 500. Then there was no longer a warranty. So i just had him do the 765. I recommend to do everything because the whining is unbearable. Especially on long trips. Im thinking about going to a junkyard and picking up a whole new rear end
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post #12 of 12 Old 10-26-2013, 11:05 AM
05wkmoneypit
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2005 WK 
 
Join Date: Oct 2013
Location: Lapeer
Posts: 4
Well good luck and as far as gas mileage a tuner would be the most effective. Other than that not much
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