Help they say my car is non reparible

[Fu Manchu]

Has anyone figured how to do the 6L50 conversion on a 5l40e yet?

VT-VZ yes. VE not that I’m aware of.

 

[Fu Manchu]

Has anyone figured how to do the 6L50 conversion on a 5l40e yet?

https://forums.justcommodores.com.au/threads/6l80e-and-6l90e-into-holden-crosstrac-system.284998/
Thread contains all the forum links to conversions.

 

[Commo64]

Seriously either take it to a transmission specialist, or just bite the bullet and put a second hand unit in.

And sell it after...

Or junk it if it's in rough shape and high km...

 

[Fu Manchu]

I’d try a gearbox from the wreckers.

 

[krusing]

2004 VZ Commodore 5speed automatic with active select shift paddles

I drove for (4hours)
The car started saying check power train and I was loosing gears
When I got to Destination I still had 1st 2nd and reverse

So we got a transmission service kit and drained the transmission and put the new kit in then had no gears but realised we left a little plastic collar/spacer out we drained it again brought more new oil and put the collar in and then I had 1st, 2nd, 3rd, and sometimes 4th, and reverse no overdrive but couldn't drive over 80ks

So we brought a new pressure solenoid and we drained it and the solenoid was the wrong one so we then just brought a whole new valve body

today we put the new valve body in and another brand new transmission filter and another lot of new transmission oil and now again we have NO Gears
at all

Your location is “Australia”

But what part of Australia,
As some members maybe able to point you in the right direction to have it looked at,
Or
Let you know of a good wrecker to source one from.

 

[elaina]

Your location is “Australia”

But what part of Australia,
As some members maybe able to point you in the right direction to have it looked at,
Or
Let you know of a good wrecker to source one from.

Tara unfortunately way out in the nowhere haha but i do have a lot of trips to south Brisbane area

 

[krusing]

Tara unfortunately way out in the nowhere haha but i do have a lot of trips to south Brisbane area

Maybe a QLD member maybe able let you know of any good reputable places to service it,
Or get a replacement.

That said, some wrecking will courier/ship items around Aus, keeping mind, you will need to pay for the delivery.

 

[elaina]

Been there, junked that with my previous VE SV6. The 5L40E transmission is rare as rocking horse **** and expensive to rebuild, and you get no guarantee with a rebuild that you won’t be back to square one within a couple of years as they are difficult to rebuild by all accounts.

Either convert it to a manual transmission or junk the car and get another one.

The thing I can understand is how we went from having 3 gears put in a new valve body to try and get 5 gears and ended up with none

 

[J_D 2.0]

The thing I can understand is how we went from having 3 gears put in a new valve body to try and get 5 gears and ended up with none

Something might not have been put back right with the new valve body install? Like I said, even the experts have difficulty rebuilding them reliably.

The usual failure mode for the 5L40E is the torque converter clutch wearing out and filling the trans with glitter, which is what happened to mine. First I knew about it was reverse gear getting “sticky”, it wouldn’t select until the car was warmed up or you floored the gas and shocked it into reverse.

Apparently the TC clutch always has 50rpm of slip programmed into it by GM to improve NVH, thus making it a consumable item, but you won’t find anything about scheduled TC replacement in the service manual.

I got a bit more life out of mine by changing the fluid and filter a few times to get most of the glitter out and changing out the shift solenoids. I rung around to find out rebuilding costs and was told about $5-6k (this was pre-covid so probably even more expensive now).

Decided to buy my SSV (manual transmission so this kind of shitfuckery can’t happen again) and be done with the SV6 as it wasn’t worth piling $5-6k into a car that was only worth that much to start with (with a working transmission). Handed off the SV6 to a family friend who desperately needed a car and they got about another 30,000kms out of it before the 5L40E finally went poopie in its trousers.

 

[elaina]

Something might not have been put back right with the new valve body install? Like I said, even the experts have difficulty rebuilding them reliably.

The usual failure mode for the 5L40E is the torque converter clutch wearing out and filling the trans with glitter, which is what happened to mine. First I knew about it was reverse gear getting “sticky”, it wouldn’t select until the car was warmed up or you floored the gas and shocked it into reverse.

Apparently the TC clutch always has 50rpm of slip programmed into it by GM to improve NVH, thus making it a consumable item, but you won’t find anything about scheduled TC replacement in the service manual.

I got a bit more life out of mine by changing the fluid and filter a few times to get most of the glitter out and changing out the shift solenoids. I rung around to find out rebuilding costs and was told about $5-6k (this was pre-covid so probably even more expensive now).

Decided to buy my SSV (manual transmission so this kind of shitfuckery can’t happen again) and be done with the SV6 as it wasn’t worth piling $5-6k into a car that was only worth that much to start with (with a working transmission). Handed off the SV6 to a family friend who desperately needed a car and they got about another 30,000kms out of it before the 5L40E finally went poopie in its trousers.

Thanks you for your reply I am starting to think maybe the gear lever linkage thing wasn't hooked back in properly it would be an easy thing to forget if your concentration is in another part I might give it one more go and if I'm wrong then I will scrap it