I have been towing my 5er across Texas on the new rebuilt motor. Started with 1100 miles on her, I am about 750 miles into trip. hot as hell out here. I have been running in 4th gear, nv4500, at 2500 rpm, right around 64ish mph. Wierd thing has started to happen when I start slowing down for an off ramp for fuel, or rest. When the clutch goes in and I amdown shifting as I slow, the idle wants to drop to about 700 before it catches itself and comes back up to about 825ish. After I stop, it smooths out and idles perfect?
Anyone ever heard of this?
All sensors where replaced during rebuild...