I swapped out the trans from a 2002 Bonne into a 2000 Bonne and I'm getting some strange shift points and hard shifts. When going into 3rd or OD I even here what sounds like an air actuator sound. It winds up a bit to high going into 2nd too.

The final drive ratios are the same btw, Do I need to have the PCM programmed or something?

HELP!

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2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

Were the trans tags the same?

_________________
Bye Bye:

RIP sandrock

Not sure what you mean there Ed and it was a 4t65e.

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

there are different ratios for the gearing. It would appear you have a trans that does not have the same gearing as your orignal

Or requires different tables in the PCM. There are sheetmetal tags affixed to the transmissions with the codes on them, those need to match to be a direct swap.

_________________
Bye Bye:

RIP sandrock

Well the old one is gone. so I have noway to check.... What I did was just check the final from the trunk sticker. I was not aware that there were differences to the ratio other than OD. I had a buddy look at the HP scan tables and he didn't think there was anything there that would cause the issues, but there were differences.

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

There were minor valvebody changes somewhere in there. Even if the Final Drive (differential) is the same, the transmission isn't exactly the same. See if you can find a good 02 Bonne tune to flash, and see if it helps.

_________________
Bye Bye:

RIP sandrock

Actually that is incorrect. The Valvebody is EXACTLY the same in the 97-2002 4T65-e HD or non HD.

All the components are the same inside of the trans with the exception of the drive and driven chain, the diff and the diff cover.

if you got a NA Trans with a 35/35 drive and driven setup and install the 3.29 Diff, you have now switched to 3.29 gearset instead of your 2.93 like your SSEi started with

Interesting... I can read the plate off the one I put in, so do I grab those numbers and bring them here, I still don't know what is supposed to go in there. I heard there was some code PCB or PBB that was needed to figure out which one should go in, is this the ratio you speak of above?. I even spoke with the dealership and had them look up the vin number. I pretty confused about where to go from here.

ED: I did think of the program issue and called on that. It will cost $100 with no guarantee it does any good. I need a solid answer on whether I can either convert this thing or reprogram it to get it working properly. If I get the code off the trans that is in there now, can someone tell me if it will work, or if I can convert?

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

Wait, I need some clarification here. What was the car that the trans came out of, and what was the car that it went into?

_________________
Bye Bye:

RIP sandrock

2002 SLE into 2000 SLE Code on the new trans is PB

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

For 2000 it says there COULD have been:

PAB or PPB, these are both a 2.86 gear ratio and you would find the RPO code FQ3 in your trunk.

You could also have PBB or PCB these are a 3.05 gear ratio and will have RPO code F83 in your trunk.

It looks like for 02 they offered 2.86 in PAB and 3.05 in PBB.

So there is a 50% chance that you could have a trans that is not an exact match to your car.

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Clay
1997.2 40th SLE-138k
1968 Bonneville 400ci w/TH-400-40k
1999 GMC Suburban SLT-191k
2005 Escalade 253k-GINA

Okay, here's the deal... GM says that it had a 3.05 ratio F83 MN3 in it from the factory. They say they can't tell me any PBB or PCB codes I just put in a PB code F83 from 2002, which as I understand is also 3.05 so this should work right? The only possible problem here is with a PAB or PBB difference in the trans, what is the difference between these two?

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

Can anyone tell me what the differences are from the PBB 3.05 F83 and the PCB 3.05 F83? Is this just a tune difference that can be handled via the PCM or is it something else. We have confirmed that we have the PBB version of the 2002 in there and the only differences is the PCB/PBB

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

That's crazy.... nobody I can find on the net or even GM can tell me the dif in the PCB/PBB codes. With the amount of knowledge on the net this is staggering.

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

Possibly torque converter and tune for the trans are different even if they are mechanically the same?

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Clay
1997.2 40th SLE-138k
1968 Bonneville 400ci w/TH-400-40k
1999 GMC Suburban SLT-191k
2005 Escalade 253k-GINA

I agree. It's likely a different torque converter.

_________________
Bye Bye:

RIP sandrock

Hmmm, funny you should say that as the trans that went back in used the inner holes on the flex plate and the one that came out used the outer holes. Hopefully will get an answer from a well know $t65E guy. I just want to get the one I have in there going... I sure as hell don't want to pull it unless I have too.

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB

Okay guys. I spoke to a very nice guy named Dave, the owner of Triple Edge Performance and the foremost authority on these trannys. Here's the deal, he said that most SLE came with the 2.83 ratio originally, but not all. The second thing is that the PCB & PBB are the same transmission and the dif code was for later in the year change, but not anything that is not 100% interchangeable. As too the larger and small TQ the smaller is not as durable and has a slightly diff stall speed, but should work without issue. Also, he said if you are not setting a code for improper gear ration the trans is correct in that is should function properly.

Dave was a hell of a nice guy and if he is willing to help a guy that has bought nothing from him, then this is the guy you want to go with. It's says alot about the service you will get when actually paying for something.

_________________
2002 SSEI "Twitch"
INTENSE™ Fenderwell Intake Kit
INTENSE™ Modular Pulley System with 3.40" Pulley -
SD Headers H-Flow Cat
WB 255 Siemens 60.0 (65.0) pound/hour Fuel Injectors
Yella Terra 1.9 90# Manley Retainers
L32 LIM & Gen V Blower N* TB