2007 Yukon XL transmission issue

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brodown

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Hey guys. For the past couple months I've noticed a problem where:

-in the morning upon first startup, put into gear, either reverse or drive, will kill the engine. Upon restarting and then putting into gear, everything is fine and working as normal, no issues throughout the day. No codes pop up.

I took her into my mechanic, left it over night, he calls me the next day and says probably the torque converter/transmission needs to be replaced, although he is baffled that there are no codes. He also notices that when put into gear, it takes a couple seconds to lock into gear, so he thinks maybe the transmission fluid filter is clogged. We decided to do a trans service, replace fluid and filter, and he tells me 2 valve body screws above the filter fell out! Along with 8 other valve body screws were loose, which he tightened. Apparently the trans has been rebuilt because the torque converter was a different color, and a couple of the valve body screws were different than the others.

Now she drives like new, no tranny problems for now!
 

wjburken

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Hey guys. For the past couple months I've noticed a problem where:

-in the morning upon first startup, put into gear, either reverse or drive, will kill the engine. Upon restarting and then putting into gear, everything is fine and working as normal, no issues throughout the day. No codes pop up.

I took her into my mechanic, left it over night, he calls me the next day and says probably the torque converter/transmission needs to be replaced, although he is baffled that there are no codes. He also notices that when put into gear, it takes a couple seconds to lock into gear, so he thinks maybe the transmission fluid filter is clogged. We decided to do a trans service, replace fluid and filter, and he tells me 2 valve body screws above the filter fell out! Along with 8 other valve body screws were loose, which he tightened. Apparently the trans has been rebuilt because the torque converter was a different color, and a couple of the valve body screws were different than the others.

Now she drives like new, no tranny problems for now!
Sounds like your transmission guy is one to keep in your contacts. Instead of defaulting to only being willing to do a new/rebuilt transmission, he thought about it and stepped through the process and found it was a simple fix in the end.
 

OR VietVet

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I love honest techs as well. I love repeat business inside of one and done when the customer feels like they were taken. When a shop/tech gives an estimate, it should be broken down, parts and labor and why the repair is needed after they did the diagnosis. The final should match unless they called with unforseen problems they found during the repair process and they got ok with you. The fact that he honestly guessed at what it felt like but was surprised at finding no codes, was a great thing he did. Honest to a fault. No made up story. When he said he wanted to do a filter and fluid that was also his way of getting eyes on the exposed guts after the pan comes off. Gotta start somewhere. Keep the guy in your contacts, Like Wade said, and recommend him to other friends. Gotta keep him busy.
 

Joseph Garcia

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Yes, as stated, truly communicative and honest car/truck service is getting pretty rare these days. When they understand you and your travel-use relationship and reasonable budget expectations with your vehicle, and they will work within those parameters, it is a really good thing.

When you do find a gem of an operation and mechanic like that, stick with that person.
 

Big Mama

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My trans guy does other repairs and state inspections so I take every vehicle there to make sure he remembers me. Don’t know what I’ll do when he hangs up the wrenches.
 

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