03 yukon tranny issue

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05-03-2011, 03:10 PM

01350ss

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03 yukon tranny issue

i have an 03 yukon 5.3 4wd slt, she has 106k on the clock. not a single problem till now. all of a sudden i lost 2nd and overdrive. i still have 1st and
3rd and also reverse. i have no codes yet that i know of. my cheap scanner does only pgm, so im unaware of any tranny codes as of now.

any thoughts?

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05-03-2011, 05:17 PM

offroadrider12

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Here's something I found on another website in my 4l60e searching recently:

Quote:

7. Sudden grinding noise with no prior warning primarily in 2nd gear, behavior in reverse may be abnormal; sunshell is fractured. R&R. Try not to run or drive the car or further damage could result.
8. 1st and 3rd only, no 2,4 or R; sunshell is fractured or splines are sheared off. R&R. Try not to run or drive the car or further damage could result.
9. No 2nd or 4th gear. 2-4 band is slipping. Servo seals may be damaged (can be fixed without removing trans. Otherwise, 2-4 band is worn out. R&R.

source:
http://www.gmtruckhq.com/?q=node/93

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05-03-2011, 07:56 PM

Vince B

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The 2-3 band in your trans is done.

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05-03-2011, 08:36 PM

01350ss

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this happened all of a sudden, there was NEVER any slipping of any sort prior to this.
I have already pulled the trans down at my shop, i will pull it aprt tomorrow.

Ive never had one of these tranny's apart before (i work for honda) what exactly am i looking for with the band? Obviously the sunshell being broken would be visible.

Unfortunately right now is not a good time for this as I am getting married at the end of the month so any way to keep this cost down is good for me right now. Even if the fix is temporary even for just one month! I just need to get through the wedding and back from jamaica.

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