My 1987 hardbody truck is burning transmission fluid through the intake manifold. I found that the modulator valve has been compromised and allowing tranny fluid to be sucked into the intake manifold. When the vacuum is low, there's no smoke. But when it's at an idle! After idling at a stoplight for about 30 seconds, white tranny fluid smelling smoke billows from the tailpipe. I replaced the modulator only to discover that it will not shifr from 1st to second gear with the selector in drive. If the selector is in D2, it will shift ONCE and stay in that gear. Is the modulator adjustable? OR is there an adjustment that I haven't done to get this transmission to shift correctly?
- posted
17 years ago