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Unread 07-11-2013, 01:35 PM   #1
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2005 WK 
Join Date: Jan 2013
Location: Pittsburgh, Pennsylvania
Posts: 227
Need specific part name and help

So just had my WK looked at today regarding a 'service 4wd' notice. The dealer says it's a 4wd sensor located in my rear diff thats going bad. Being at work, I couldn't have him go into details. They want about $400 to fix it. Sucky part is, it's not covered under my powertrain warranty.

So, what I'm wondering is, what is this sensor called specifically and/or part number? Is it just better to let a mechanic do it? Any one else replace this?

*edit* So I may have found the name: rear electronic limited slip differential pressure solenoid (sensor???)
*edit* Should this be covered under my powertrain warranty?

[FONT="Arial"][SIZE="3"][COLOR="Purple"]2005 Silver WK 5.7L Hemi
[FONT="Arial"][SIZE="4"][COLOR="Silver"]Silver WK club #69[/COLOR][/SIZE][/FONT]


Last edited by Megs_Revenge; 07-11-2013 at 07:20 PM.. Reason: update info
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Unread 07-12-2013, 12:39 PM   #2
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2005 WK 
Join Date: Apr 2011
Location: Lac du Bonnet, manitoba, Can
Posts: 1,219
Yes the elsd differential pressure solenoid could cause the service 4wd . There would have been a specific DTC code though . did they tell you what it was? did they erase the code first and see if it came back ? I've read people on here have changed the solenoid themselves . From reading the service manual i suspect the $400 fee is almost all parts because it looks like a 20 min job to change . here is the exact description from the service manual on how to replace .
With solenoid disconnected resistance across the solenoid should be 13.5 to 14.5 ohms at 25°Celsius (77° Fahrenheit).
To replace the solenoid diconnect wire connector then squeeze the retension clip and pull solenoid up.
5 and counting :05 WK 5.7 HEMI
90 YJ Islander 4.2L
94 ZJ Ltd 5.2 ,00 WJ 4.0
2010 MK Patriot
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