Tachometer, Speedometer,and Shift Indicator do not work
What is your question?
Motor Runs Good . But the transmission doesn't. It starts in 2nd gear then shifts into 3rd at 30 MPH. it will not shift into 4th or OD. Reverse work fine. A few days before this started ,I noticed that holding the throttle steady between 40 and 60 MPH It would feel like the Tork Converter Lock-up was kicking in and out. Engine RPM's would rise and fall 200 RPM's .I also noticed that I could simulate this same issue by slightly depressing and releasing the throttle. I don't hear any funny noises or notice any strange sensations except sluggish starting in 2nd gear. I have 3500 Mi. on re-man. transmission , fluid is nice ,clean and red . does not smell burned.
How long has your 1997 GMC C1500 had this problem?
RepairPal Certified shops can diagnose and repair your 1997 GMC C1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
This could be a few different things including internal issues. You can start with a scan of the computer for codes but overall this this will require professional diagnosis. It will be difficult to diagnose with any kind of accuracy online. If you want a seconb opinion here is a link to find a shop near you.https://repairpal.com/repair-shops
Alex
Internal failure - contact the facility that rebuild the transmission or visit local auto repair facility.
No realistic repair the average DIYer should attempt.
No it does not have 1st or "Low" Gear
This is an internal transmission failure.