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  #1  
Old 06-28-2010, 05:53 AM
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scotty1998 scotty1998 is offline
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Has this ever happened to you? (Long)

So I'm sitting at the local convenience store on Saturday and left my Waggy idleing with my 11 year old son in the passenger seat. I'm in the checkout line when someone says, "hey, is that you're Jeep out there?" Always getting questions about the rig, I say, "yeah" and look out the window but notice that the Jeep isn't there anymore.

There is was cruising slowly backwards, across the highway on its own. It was like watching a movie, my son decides to bail out and is swinging on the passenger door and the vehicle wacks a street light, pushing the light post backward as the globe unseats and comes crashing down into the roadway.

Thank god the boy was ok. His only comment when asked why he jumped out was...,"I tried to steer it, then tried to get the key out, and then didn't want to get hit in the face with the air bag!" I say, "oh young Alex, there is no airbag in this truck."

At any rate, when I checked whether the truck was in gear, the PRNDL was in the park position but obviously wasn't locked in place. What could cause this? It's never happened before and I certainly don't want it to happen again. Moral of the story is 1) shut the thing off when not in use, 2) use the emergency brake.

Secondly, the rear bumper is bent in about 30 degrees and I have a good sized crease in the rear quarter. The quarter also buckled in down by the exhaust. I think it'll be easy enough to repair the dents and I'll have to get a new bumper. The only problem that I see at the moment though is what happened to the passenger side B-pillar. The impact flexed the upper part of the Jeep where the tailgate and rear window meet the quarter. It split the body weld and pushed out the entire back quarter about 1/4". Now, the tail gate rattles around in the frame and I'm not sure how this can be repaired. I can post pics if it'll help.

Can't help but think, if this was a modern vehicle, I'd be talking about replacing the whole rear end
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Old 06-28-2010, 06:21 AM
slow5 slow5 is offline
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I experienced this same issue the other weekend. Have not been able to figure out why it is happening. Needless to say the wagoneer is parked until I do.
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  #3  
Old 06-28-2010, 06:27 AM
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scotty1998 scotty1998 is offline
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I always felt that the column was a little "soft" meaning that the gear shifter is a bit sloppy and looseish feeling if that makes any sense. I'm guessing linkage wear?
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Old 06-28-2010, 07:21 AM
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710 Burner 710 Burner is offline
 
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The bushing in the linkage get worn and produce enough slop that the parking paw does not get set if you aren't paying very close atention. If you put the Mr. Shift kit in the valve body of the TC727 and drilled the passage to allow fluid to pump into the torque converter while in park, it will actually creep forward.
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Actually, now that I think about it, that could be either awesome or really terrible.


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  #5  
Old 06-28-2010, 07:41 AM
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gsmikie gsmikie is offline
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left the truck running with child in car ???? no E brake ???? WHY ?!?!?!? i dont understand why you did this
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I\'ve seen gsmikie\'s video for the TH400 and thought it was just awful.watching a guy tear down a greasy pile of metal in a junkyard. it dosent have to be surrounded by water to be an island
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Old 06-28-2010, 09:03 AM
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scotty1998 scotty1998 is offline
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Yes, I'm certainly not proud of this and the practice is very common in our little podunk area. Life's lesson learned. Someone was definitely looking out for us.
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Last edited by scotty1998 : 06-28-2010 at 09:09 AM.
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  #7  
Old 06-28-2010, 09:13 AM
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Heavy_Metal_Thunder_81 Heavy_Metal_Thunder_81 is offline
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I had the same problem with mine...bushings in the linkages were shot...got them at a local Chevy dealer but they had to do some lookin...
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  #8  
Old 06-28-2010, 09:16 AM
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scotty1998 scotty1998 is offline
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Are the bushings limited to the linkage under the hood or did you have to replace everything all the way back to the tranny? IOW, are they easy to get to?
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  #9  
Old 06-28-2010, 09:22 AM
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Heavy_Metal_Thunder_81 Heavy_Metal_Thunder_81 is offline
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idk about the 727 rigs but mine only has 2 bushings and real easy to get to from underneath
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1979 Cherokee Golden Eagle - 4" lift, 33x12.5x15
AMC 360 - 4180, TFI, Headers, Dual Exhaust
TH400 - Shift Kit, Deep Pan, Aux Cooler
D20 - Twin Stick'd
F D44 - 3.54, Open
R D44 - 3.54, Lock'd

1984 J10 - Parts
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1979 Cherokee Chief - Parts
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  #10  
Old 06-28-2010, 09:45 AM
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scotty1998 scotty1998 is offline
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Looks like I located the two bushings on the parts catalog. Sound like there's no HELP! part or replacement part # floating around then?
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Old 06-28-2010, 10:01 AM
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gsmikie gsmikie is offline
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check your eng/trans mount
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I\'ve seen gsmikie\'s video for the TH400 and thought it was just awful.watching a guy tear down a greasy pile of metal in a junkyard. it dosent have to be surrounded by water to be an island
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  #12  
Old 06-28-2010, 10:17 AM
twmattox twmattox is offline
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Help part number 14041

http://www.dormanproducts.com/catalo...nal.pdf#Page=5

Contains the bushings for Chrysler for and GM transmissions...just used them myself about 6-months ago.
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  #13  
Old 06-28-2010, 10:25 AM
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scotty1998 scotty1998 is offline
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Sweet. Thank you!

Difficult job or will the old pop right out and the new pop right in?

Also, excuse my ignorance on this but is the tranny mount the same as the engine mount? I know there are two engine mounts in the front but is there a similar one for the trans? Just one mount? Several?
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Old 06-28-2010, 10:37 AM
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Just one rear trans mount. Its at the end of the trans just before the tcase.
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  #15  
Old 06-28-2010, 11:31 AM
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scotty1998 scotty1998 is offline
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Thanks!
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  #16  
Old 06-28-2010, 03:00 PM
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El_Diablo El_Diablo is offline
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theres actually an adjustment procedure that should be performed when things such as this happen... not necessarily bushings
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  #17  
Old 06-28-2010, 03:17 PM
FSJ Guy FSJ Guy is offline
 
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If this was a newer modern vehicle, you would have had a brake-shift interlock and it wouldn't have rolled in the first place.

Glad to hear that no one was hurt.
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Old 06-28-2010, 11:08 PM
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X2 on the out of adjustment idea. Your boy would have been able to remove the key if was actually in "park."
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  #19  
Old 06-29-2010, 09:49 AM
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El_Diablo El_Diablo is offline
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Quote:
Originally Posted by FSJ Guy
If this was a newer modern vehicle, you would have had a brake-shift interlock and it wouldn't have rolled in the first place.

Glad to hear that no one was hurt.
not true, the only thing that it would do is make it so it couldn't be shifted without pressing on the brake, most of those systems are actuated by a cable or sensor on the shifter itself so it wouldn't have made a single difference if the cable or actuator was out of adjustment such as in this case
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Old 06-29-2010, 11:28 AM
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scotty1998 scotty1998 is offline
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I bought the bushing kit as recommended anyway ($6.99). I'm sure they'll likely need it. The column just feels sloppy and my wife has made a comment more than once about whether the thing is actually in drive when it needs to be. You can move the actuator back and forth when you're cruising along such that the indicator on the PRNDL doesn't point accurately to the right gear.

I was playing with it through the gear range last night and it definitely needs something. Sometimes I'm not entirely confident that it parks when needed. This will not be on the road until I find out what the problem is.

Anybody have a link to how to perform the adjustment procedure if not bushings? Would this be in the Haynes Manual?
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