I am quickly becoming an urban menace. My truck's MO, for the last 20,000 mi or so, has been to smoke at idle when cold and then clear up. recently the cold idle smoke has increased by a large factor (but still mostly dissapears when warm) and...it has begun to smoke whenever I release the accelerator while still leaving the clutch engaged (pretty much in any gear at any speed, warm or cold). No smoke uphill or at high speeds, only when I start to slow down. I am guessing the injector pump is to blame. Just adjustment or is it trash? Note: this truck has been running on biodiesel for about 2 and a half years (40-50,000 mi).

Also...who makes the best Maint/Tech manual for the 7.3l of an '88 variety?

Cheers