48RE Park Adjustments???

[Wingate]

I have noticed that recently, I can get out of my truck with it running in park with parking brake set... . and I can hear a low pitched gear grinding. Upon investigating, if I get back into the truck, release the park brake and allow the truck to roll slightly, it will usually "latch in" and quit making the noise.

I am always a one man operation on the boat ramp as my wife cannot back a trailer. !! I am REALLY not interested in allowing the truck to rest against the transmission park gear on the steep incline of a boat ramp... So not using the e-brake is really not a desireable option...

My question is, Is there an adjustment for the shift mechanism? Anyone have a FSM with the correct procedure?

 

[WCPoe]

Has yours had the "trans out of Park" recall

I have noticed that recently, I can get out of my truck with it running in park with parking brake set... . and I can hear a low pitched gear grinding. Upon investigating, if I get back into the truck, release the park brake and allow the truck to roll slightly, it will usually "latch in" and quit making the noise.

I am always a one man operation on the boat ramp as my wife cannot back a trailer. !! I am REALLY not interested in allowing the truck to rest against the transmission park gear on the steep incline of a boat ramp... So not using the e-brake is really not a desireable option...

My question is, Is there an adjustment for the shift mechanism? Anyone have a FSM with the correct procedure?

Wingate does the gear position indicator show it in Park? Where the lever is fully in the park postion but the indicator "P" isn't encircled even though the shift lever is all the way and locked there. That said, my 2004. 5 even with a built transmission can does the same thing. I think it's a design thing where the parking pawl "hangs" and doesn't drop in the recess. Several people have been hurt when the transmission jumps back into reverse and the truck moves inadvertantly.





What you are describing the exact reason for the recalls on all the 48RE, (maybe 47RE as well). It's the "out of park" recall that reflashes the ECM to sound the horn if you unbuckle your seatbelt to get out ot the truck with the engine running and the park "P" indicator isn't encirled. Many folks who had the reflash hate it as it makes hooking to a trailer a real pain with the horn intermittantly sounding.



Apparrently you don't have the reflash. Let us know if this isn't the case.



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[Wingate]

yes, my truck is a mid-year 06 model that came from the factory with the idiot horn honk recall thing. Yes, its an absolute P. I. T. A. when trying to get hooked up to various trailers... On the other hand, over time it actually makes you get REALLY good at spotting your truck... !
Not sure if the P is circled, but I will look when I drive it tomorrow evening, but with the parking brake set I can open the door and get out and the horn does not sound... . but I KNOW the transmission isn't locked into park gear cause I can hear it sitting there grinding.
I REALLY do not want my truck going swimming at the boat ramp!.

 

[WCPoe]

Well if the horn isn't sounding, I imagine the "P" is encircled. You may have a worn parking pawl. It wouldn't hurt to make yourself a good lightweight wooden parking chock to supplement the emergency brake on hills until you resolve this. I have seen people put the chock under the front wheels, (these Cummins are front heavy), tether it with a length of rope, then get back in the truck, move forward a bit and pull the chock out of the way.
Good luck. Let us know what you find.

 

[cerberusiam]

Put it in park and let the truck roll a little to get the pawl to catch before you set the emergency brake. The parking pawl is a hook on a square notched gear on the output shaft. If it doesn't drop into the slot exactly when you put it in to park and the brake is set the outut shaft will keep turning and chatter the pawl.

The out of park alarm will do nothing if the gear indicator is in Park, which does not mean the pawl has engaged. If the linkage on the VB is out of adjustment the Park will light and the truck will roll. Dropping the band strut on on top of the VB has the same result.

 

[Wingate]

Put it in park and let the truck roll a little to get the pawl to catch before you set the emergency brake. The parking pawl is a hook on a square notched gear on the output shaft. If it doesn't drop into the slot exactly when you put it in to park and the brake is set the outut shaft will keep turning and chatter the pawl.

The out of park alarm will do nothing if the gear indicator is in Park, which does not mean the pawl has engaged. If the linkage on the VB is out of adjustment the Park will light and the truck will roll. Dropping the band strut on on top of the VB has the same result.

Ok, drove the truck this afternoon and purposley attempted to create this situation. I noticed exactly as you said above, if I allow it to roll slightly and catch, then set the brake, everything acts normal. . What is puzzling is that I have owned this truck since new and it has just started doing it. I have always used the same procedures in any vehicle I drive this truck included, yet this situation just now pops up. Guess thats why I was questioning a linkage adjustment.
Another piece of info... I had to replace the transfer case shift lever bushings on it last weekend due to them breaking and the linkage falling off. Although they are plastic, I kinda found it odd that these failed a truck with only 50K miles and been in 4WD maybe 10-15 times in its life. .
Anyway, in the interim, I will have to attempt to change my life-long habit of allowing the park brake to keep the stress of the park dog...

 

[JJPage]

It is definitely an irritation, my 03 has just started doing this "not going into park" business. At first I didn't notice, until my brother who was parked behind me, told me I was in reverse, my back up lights were on. Since then I am very aware that the P is not encircled when this occurs, and actually at my mailbox the whole cable popped out of the trans bracket so I had no control until I crawled under my truck and snapped it back in place.



The dealer fix is not a fix at all, so they did not get my truck to flash their horn honking into my ecm. I have been trying to find a way to possibly shim the cable at the trans bracket, as the "ears" on the cable sheath have worn, to where it's already popped out once. If I manage a viable repair/adjustment I will share, maybe a whole new cable will be the only cure...

 

[Wingate]

TBH. . I havent looked under the truck for an adjustment point. But, in this day and age... most parts are disposable vs. adjustable. So the shift cable isnt adjustable?. . hhmm. . bet I could build an adjuster assembly if it would solve my issue...

 

[cerberusiam]

Cable adjustmnet is behind the knee bolster under the steering column. However, that won't help if the ears are worn or broke where it clips into the mount at the transmission, that will take a new cable to fix.

 

[chipster]

TBH. . I havent looked under the truck for an adjustment point. But, in this day and age... most parts are disposable vs. adjustable. So the shift cable isnt adjustable?. . hhmm. . bet I could build an adjuster assembly if it would solve my issue...

when the ears slipped through the bracket on the trans end, I snapped the cable back in and put a tie wrap under the ears and around the cable housing. end of the ears slipping back through the bracket. I do this on new cables too .

 

[Wingate]

It is definitely an irritation, my 03 has just started doing this "not going into park" business. At first I didn't notice, until my brother who was parked behind me, told me I was in reverse, my back up lights were on. Since then I am very aware that the P is not encircled when this occurs, and actually at my mailbox the whole cable popped out of the trans bracket so I had no control until I crawled under my truck and snapped it back in place.

The dealer fix is not a fix at all, so they did not get my truck to flash their horn honking into my ecm. I have been trying to find a way to possibly shim the cable at the trans bracket, as the "ears" on the cable sheath have worn, to where it's already popped out once. If I manage a viable repair/adjustment I will share, maybe a whole new cable will be the only cure...

Could you hear the park dog grinding/rattling?
Im gonna look under mine one afternoon this week and see if I can find any wear on the cable. Mine shows the P circled, the horn doesnt sound, although I cannot remember if it WOULD with the parking brake set?? Will check that this week also, as well as checking to see if the B/U lights are on.

 

[JJPage]

when the ears slipped through the bracket on the trans end, I snapped the cable back in and put a tie wrap under the ears and around the cable housing. end of the ears slipping back through the bracket. I do this on new cables too .

Good idea!

Could you hear the park dog grinding/rattling?
Im gonna look under mine one afternoon this week and see if I can find any wear on the cable. Mine shows the P circled, the horn doesnt sound, although I cannot remember if it WOULD with the parking brake set?? Will check that this week also, as well as checking to see if the B/U lights are on.

No unusual noise. I am going to play with the adjustment cerb mentioned, did not know there was one under the sterring column.

 

[LNaugle]

also... that park pall has a spring on it that shoves the "gear" as cerb called it... into its notch... i can imagine that it can wear or break and not have as much tension on it. i personally have seen cable stretch cause the problem also.

 

[Wingate]

also... that park pall has a spring on it that shoves the "gear" as cerb called it... into its notch... i can imagine that it can wear or break and not have as much tension on it. i personally have seen cable stretch cause the problem also.

Were you able to adjust it out or did it require a cable replacement?

 

[cerberusiam]

Yes, cable stretch can be adjusted out by resetting the housing length under the dash. Thats essentially what it is for as the cable IS going to stretch with use.