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.

4L80e diagnostic guru needed (kinda long)

Digging up bones here to find the resolution for this issue. I have a 91 Suburban that is not going into OD. It also has the code 68. Any help is appreciated. Thanks.
 
Does the link in my sig contain the '91 truck manuals? I *think* the service manual I have at home for the '91 R/V series does list the 4L80E codes and flowcharts for diagnosis.
 
Top Bottom