Pre-purchase issues (transmission)

[Racin_jason]

Originally Posted by geezer#99

Maybe the modulator. Modulator would make it shift way early if it's hooped.
Could be vac hoses hooked up wrong too.
My truck has a turbo 350C. Lock up convertor. Vac hoses were hooked up wrong when I got it and it would shift to lock up right away making it want to quit. The lock up vac supply works from a temp vac switch mounted on the intake.
A non functioning choke could cause a big bog and have it quit too.
Get it warmed up to operating temp when you test drive it.

yea makes sense.. I'll give it a shot this week and let you know