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Unread 09-18-2009, 11:52 PM   #1
92wrangler
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01 Wj 4.7L trans problems

Hey guys recently my jeeps trans started acting up. It shifts fine from 1st to 2nd and drives fine but anytime you put the trans selector into D it acts like it's in neutral. Has anyone else had this problem and what is the fix. Like i said it shifts from 1st to 2nd perfectly fine it's only when in D that it acts like its in neutral and slips.


thanks for any advice...


Jason

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Unread 09-19-2009, 05:49 AM   #2
Turbonut
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Changed the 2 filters and used ATF+4 lately?
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Unread 09-19-2009, 06:50 AM   #3
rm2001wj
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There are a large number of transmission diagnostic trouble codes that don't turn on the MIL. Check for codes which might indicate something to fix.
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Unread 09-19-2009, 08:19 AM   #4
92wrangler
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I have receipts from the previous owners saying it was one at 45k or so the jeep just broke 80k now. Thanks i'll cycle the key and see if there is any codes.
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Unread 09-19-2009, 05:51 PM   #5
92wrangler
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ok so i replaced both speed sensors and same thing what would be the next thing i may check for.
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1997 camaro Z28 Fully forged 355, Stage 3 heads, Gm847 cam, Nitrous,


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Unread 09-21-2009, 10:54 AM   #6
Double E
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Acts like it is in neutral..... It does not move?
How is reverse?
How is your fluid level?
Filters & fluid new?
Got any leaks?
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Unread 09-21-2009, 11:02 AM   #7
rm2001wj
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Quote:
Originally Posted by 92wrangler View Post
ok so i replaced both speed sensors and same thing what would be the next thing i may check for.
There are trouble codes for faulty speed sensors. Are you replacing parts without first retrieving codes????
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Unread 09-24-2009, 09:52 PM   #8
92wrangler
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hey guys finally figured out the problem apparently there was a TSB about the valve body bolts being weak and blowing apart. Jeep sells a kit for $110 comes with new bolts new gasket and a new screen, While i was in there i did a fluid flush and also replaced the filters. The jeep seems to shift fine now and haven't had any other issues with the trans yet so hopefully its fixed.


Jason
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2001 Grand Cherokee Limited v8 4.7L H.O Black, leather, fully loaded, tinted windows all the way around

1997 camaro Z28 Fully forged 355, Stage 3 heads, Gm847 cam, Nitrous,


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Unread 09-25-2009, 06:41 AM   #9
Double E
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Thanks for the update.

These guys did a fix for that issue and a nice write up. Should it happen to me, I'll upgrade that part.

5-45RFE Fluid Change/TransGo Shift Kit Installation - North American Grand Cherokee Association

This repair doesn't look too insane to tackle on a Saturday.
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2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof.
Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
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Unread 09-25-2009, 06:50 AM   #10
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Quote:
Originally Posted by Double E View Post
Thanks for the update.

These guys did a fix for that issue and a nice write up. Should it happen to me, I'll upgrade that part.

5-45RFE Fluid Change/TransGo Shift Kit Installation - North American Grand Cherokee Association

This repair doesn't look too insane to tackle on a Saturday.
I did it a couple of months ago. Not really difficult, more messy than anything. The shift kit comes with a stiffer plate to put on there. Make sure you torque those torx bolts properly and use a little lock-tite. Oh, and I put a PML deep pan on there too so I had a drain plug for next time! Make sure you follow the instructions on the shift kit and be careful installing the filter seal in the pump. Soldering the resister was a pain in the *** but doable.

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Unread 09-25-2009, 01:15 PM   #11
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Can anyone describe the two filters..?? I never knew there was a tranny filter..
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