SURGING PROBLEM
I have a 2007 Winnebago Adventurer Model 35L with a Workhorse Chassis with a 8.1L Chevy engine and a 1000 model six speed Allison Transmission. While running on level terrain at about 60 to 65 mph the...
Forum Discussion
Stim wrote:
That sure sounds like Torque Converter Lock Up in and out.
I have had GM Vehicles that you could feel when lock up occured and it felt like another gear shift.
Something to try, when it is working normally, tap the brake pedal but don't push hard enough to apply the brakes, just enough to turn on the brake lights. That will cancel lock up and when you let go of the brake you should feel lock up again.
Watch the tach to see if it is the same issue.
I too believe it could be either a defective or missadjusted brake light switch, unlocking and relocking the torque converter.
