What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Transmission Shudders in reverse

jeff in co

jeff in co

1/2 ton status
 Premium
Joined
Nov 14, 2003
Posts
2,198
Reaction score
446
Location
Colorado Springs
Just had the transmission rebuilt in Cheyenne and everything is good......

Except when the tranny is FULLY warm and I come to a stop, shift into reverse and hit the gas I get a shuddering sound and vibration. When it's cold, I don't really notice it.

I did take it into a shop up in Idaho and he could not duplicate it (I think it cooled down too much). His best guess was possibly a sticking valve that was just a fluke. He did say in any case, it would be OK to drive back to Colorado without hurting anything.

Now that I'm back, I'd like to find out what is causing it. I can take it to any local "ATRA" member to get it fixed under Warranty.

Any thoughts on the problem?

Any of these shops better than the other locally?

Colorado Transmissions
Trans Tech Transmissions
Transmission Clinic
Midwest Transmission
Better Build Transmissions
B&M Transmissions

Thanks!
 
No idea but if its warrantied take it back and have them go through it before sonething goes bad and needs to be fixed on your dime
 
I had the same issue when I had the trans in the Burb rebuilt, the guy knew right away what it was apparently, a seal is leaking supposedly, something about a cheaper rebuild pack that was used, he offered to redo the complete trans for free, unfortunately, the truck is still stuck out of state.

He did tell me it would only get worse as well.
 
4xcrazy said:
I had the same issue when I had the trans in the Burb rebuilt, the guy knew right away what it was apparently, a seal is leaking supposedly, something about a cheaper rebuild pack that was used, he offered to redo the complete trans for free, unfortunately, the truck is still stuck out of state.

He did tell me it would only get worse as well.
Click to expand...

Ouch!!

Well, at least mine is under warranty but, DANG!:eek:
 
Also, not sure how bad yours is, but i had noticed if I give the throttle easy, slower pressing while backing up, it doesn't usually shudder, something about getting the line pressure built up that makes it quit.

Try holding the brake for a second before hitting reverse then hitting the gas... Hold the brake for a second, rev the engine a touch then let off the brake and see if it still does it.

And I don't mean rev the engine to like 2000 rpm, just s touch to get the rpms up a couple of hundred, like a mild power brake.
 
4xcrazy said:
Also, not sure how bad yours is, but i had noticed if I give the throttle easy, slower pressing while backing up, it doesn't usually shudder, something about getting the line pressure built up that makes it quit.

Try holding the brake for a second before hitting reverse then hitting the gas... Hold the brake for a second, rev the engine a touch then let off the brake and see if it still does it.

And I don't mean rev the engine to like 2000 rpm, just s touch to get the rpms up a couple of hundred, like a mild power brake.
Click to expand...

Yea, pretty much the same scenario. If I go easy and slow, it doesn't happen too much but if I get after it right after shifting, it will do it. Thanks.
 
Well, I swung by Colorado Transmission and took the tech for a ride. Luckily, the truck did the shudder when he was present. But, after watching, he noticed the transfer case shifter move around a bit. He thought it might be possible that the transfer case might be going bad instead but couldn't tell until he got it on the lift. So I'll let them look at it on Monday to see what the problem is.....

I hope it isn't the tcase because that's more money!
 
Of course the t-case shifter is going to move, it's shuddering the whole driveline when it does it, don't let them tell you that's the problem.

They used cheaper parts in the rebuild, my rebuilder flat out told me this and even mentioned about how he really wanted to use a better quality brand, but didn't have them in stock when I needed the trans done.
 
my truck did that same things. the reverse band was gone, had to rebuild the whole trans. as a result.
 
4xcrazy said:
Of course the t-case shifter is going to move, it's shuddering the whole driveline when it does it, don't let them tell you that's the problem.

They used cheaper parts in the rebuild, my rebuilder flat out told me this and even mentioned about how he really wanted to use a better quality brand, but didn't have them in stock when I needed the trans done.
Click to expand...

Good to know. Just to clarify, the shop I visited did not do the rebuild....that was done by another shop in Cheyenne. Being a member of a transmission association they would fix Cheyenne's work under warranty.
 
I don't know what could cause it internally, but I often try and check crossmember bolts, u joint caps, ect. For items that could have been left loose.

As far as your list. I still stand behind Trans Clinic, and Better Built. Good experience with both. TJ at BB does a lot of my stuff.

Hate to bash, but heard not great things about B&M
 
I don't know enough to make any guess or point to any direction, but recently my 4L60e in my s10 bit the dust. Just as I started to back-in-park at the trans shop, it shuttered something awful. Bad seals @ 125k miles, went full rebuild with new torque converter.
 
The K5 I recently picked up wouldn't engage into reverse or drive,...so I just went to a reputable salvage yard and just picked up another 700r4 auto tranny and had it installed,...the fix was $450 for tranny & $350 labor for my friends labor & time.
 
Had my 700 fully rebuilt by "that guy" everybody has in there town thats been doing em for 30+years. Transgo stage 2 reprogramming kit, all new seals and clutches. $500 out the door and i put it in and took it out. Damn thing shifts soo nice and firm, freekin awesome. :thumb:
 
Deuling said:
Had my 700 fully rebuilt by "that guy" everybody has in there town thats been doing em for 30+years. Transgo stage 2 reprogramming kit, all new seals and clutches. $500 out the door and i put it in and took it out. Damn thing shifts soo nice and firm, freekin awesome. :thumb:
Click to expand...

Thanks for rubbing in the salt!! :haha:

Seriously, sounds like you got a great deal that's for sure. I dropped the truck off last night and they will call me later today, hopefully, with good (and cheap) news.
 
Well it's in the local shop now and they have had a little time diagnosing it. They did a few tests and now do think it's within the transmission and not the transfer case.:thumb:

What they have found is the transmission is losing pressure internally and not making it work properly. Now the fun part.

Because this was rebuilt up in Cheyenne, the local shop needs an OK to get into it and find out the cause. However, the Cheyenne shop doesn't trust the local shop and wants to come down, pick up the truck, haul it back to Cheyenne, fix it, and then bring it back to me. :dunno: He wanted to come down this Saturday, haul it back, and then bring it back the following Saturday. That's like 550 miles with 2 round trips for him! That just sounds weird to me. So I called him up and basically asked why.....

His concern is wanting to find out what happen so he doesn't do that to future rebuilds. I suggested the local shop could do the same thing and then "call" him to let him know about the problem. He basically said he doesn't know them and doesn't trust them. I said, well, you are putting me at a major inconvenience just for your own, personal education. I told him that wasn't realistic and the shop down here should be qualified enough to diagnose it. He suggested I call the ATRA board and let them handle it......also said it would most likely take a LOT longer to get fixed but, that's ok with him (he guessed).

Called our local shop, relayed the information, and within about an hour they had approval to remove the tranny to investigate the problem. :waytogo:

So, called again to check on status but the local shop just couldn't get on it yet. However, the Cheyenne shop called again asking if the tranny was removed yet because he was thinking about coming down and just getting the tranny! :confused: He sure is going to a lot of effort to get his hands on this thing which is really making me think he doesn't want anyone to see what's actually in there! Local shop is also curious and finds this really bizarre as well.

Anyways, they will get into it next week and we will finally be able to see what's going on in there. Crazy! :popcorn:
 
That's basically what my trans guy told me, a seal inside the trans is leaking, causing the lack of pressure build up when shifting into reverse, he knew this after I told him I could shift into reverse, let it idle for a second or at least rev the motor a tad before releasing the brake and it wouldn't shudder. But if I shifted in reverse and hit the throttle immediately, it would.
 
Makes sense, a lip seal on the clutch pack leaks causing low line pressure for that pack. He is right, you can drive it, until it burns up the bands and clutch pack from low line pressure, probably a week after your warranty expires. And it don't drive no more.
 
You must log in or register to reply here.

Latest Posts

Top Bottom