Shift body sticking

Tiny
MIKE CRUZER
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Driving on the road dollar training line popped off on the transmission put it back in and now it won't shift into third and fourth seems like we're going about 70 and shift didn't seem like it was in third wasn't slipping or nothing not sure if we got shift body issue or where I should start going all the fuses are good thank you
Tuesday, January 22nd, 2019 AT 6:54 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good evening

Do you mean the transmission cooler line from the radiator?

If you did, how far did you drive it like that? You may have damaged the clutches or the valve body from lack of pressure.

https://www.2carpros.com/articles/automatic-transmission-problems

I would start by changing the trans oil/filter and see if there is any debris in the pan or the magnet.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy
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Tuesday, January 22nd, 2019 AT 7:27 PM
Tiny
MIKE CRUZER
  • MEMBER
  • 3 POSTS
Yes cooler line slid back lower line side of tranny pulled over added quart fluid couple miles back home in second fixed total of about 4 quart lose tranny used been in about 4 months had 100000 miles on it maybe put on 5000 sense it's been in it doesn't seem like its hitting 3rd on freeway pretty sure got it into 3rd about 70 mph rpms weren't maxed felt good no slip
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Wednesday, January 23rd, 2019 AT 2:09 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
It won't slip if it is not shifting.

I would start by changing the oil/filter in the transmission. Then check for anything in the pan magnet.

Roy
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Wednesday, January 23rd, 2019 AT 4:54 AM

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