Help new 4l80e is in now truck wont start
#32
Dropped the trans. no sign of cut wires or anything.
There is trans fluid in the case connector. I'm wondering if this is the culprit.
Also I did the dual feed mod for the direct clutch. In the ASTG manual page 9 it says
Condition: No gear selections
cause: blocked holes, channels for the valve body/case...
There is trans fluid in the case connector. I'm wondering if this is the culprit.
Also I did the dual feed mod for the direct clutch. In the ASTG manual page 9 it says
Condition: No gear selections
cause: blocked holes, channels for the valve body/case...
#33
Moderator
iTrader: (1)
Dropped the trans. no sign of cut wires or anything.
There is trans fluid in the case connector. I'm wondering if this is the culprit.
Also I did the dual feed mod for the direct clutch. In the ASTG manual page 9 it says
Condition: No gear selections
cause: blocked holes, channels for the valve body/case...
There is trans fluid in the case connector. I'm wondering if this is the culprit.
Also I did the dual feed mod for the direct clutch. In the ASTG manual page 9 it says
Condition: No gear selections
cause: blocked holes, channels for the valve body/case...
#35
The fluid in the connector just means its leaking. Its not shorting anything out. Also I'm pretty sure in the ATSG book what you read is with the vehicle running and not having engagements in any range. Your not even there yet. How bad did the bell in that vehicle break? The reason I ask is I'm thinking that maybe a wire or connection got broke when it happened. I would get a wiring schematic and start tracing all wiring from the trans to wherever it goes to check for resistance or an open or short to ground.
The bell broke in 3 places but it didn't explode. I didn't even know it was broke till I dropped the trans to rebuild it. The truck ran for a while after the bell broke.
I'm thinking I cut a wire but I haven't been able to find it. Maybe I am missing a ground. I have searched for so long and I haven't found anything.
I need to find a nice wiring schematic do some more testing.
I wish I knew where it was.
#36
Custm2500's Rude Friend
iTrader: (17)
As far as the scan tool not connecting it could be a few things. deppending on How old it is it may not be reading the New CAN protocol. The other thing could be a blown fuse. I am not sure on the GMT 900 but if the OBD2 Power is linked to the Cigarete power fuse circuit and the fuse is blown the scanner will not read. I have also seen people tap aftermarket Stereo equipment into the same power circuit as the OBD2 port cause a no scan issue.
On a side note If you need some help I may be able to come down over the weekend and try and help you sort this issue out.
On a side note If you need some help I may be able to come down over the weekend and try and help you sort this issue out.
#37
As far as the scan tool not connecting it could be a few things. deppending on How old it is it may not be reading the New CAN protocol. The other thing could be a blown fuse. I am not sure on the GMT 900 but if the OBD2 Power is linked to the Cigarete power fuse circuit and the fuse is blown the scanner will not read. I have also seen people tap aftermarket Stereo equipment into the same power circuit as the OBD2 port cause a no scan issue.
On a side note If you need some help I may be able to come down over the weekend and try and help you sort this issue out.
On a side note If you need some help I may be able to come down over the weekend and try and help you sort this issue out.
Hell yeah that would be awesome!
#40
Thanks for posting the pics etc. Do you have the correct readings by chance? As in what I voltage, ohms etc. I am seeking? I was gonna just go off of a test light but if a wire is cut I believe the current can drop so i.....uh what? idk i'm pretty damned electronically ignorant
I only know of 2 people, for a fact and who post regularly, who have done the 80e swap on a gmt900 and that's you and Greg (redheartbeat)
Last edited by chris092183; 02-25-2012 at 02:22 AM.