BOTTLEDZ28
I'm Awesome
1998 Tahoe. 350 with 4 wheel drive. Driving down the road cruising at 70 around 1700 rpms and allof a sudden the rpms will jump up to 2000 at what seems like a flip of a switch. I feel it in the seat and look down at the tach and it then goes right back to 1700 rpms. It is the converter unlocking and locking but what is causing this if Im not hitting the brake pedal. On my 7 mile highway trip to work, it does it maybe once or twice. Its been doing it on and off for over 3 months but today it did it and didnt go back to lockup until I came to a complete stop at a light and drove again.