83 300DT tranny personality problem
 

My 83 300DT has had what (and maybe is) a failing transmission, but is seems to have a personality- sometimes it works great and really snaps into gear properly and often it simply slides, quite softly, into the next gear. Levels are fine and I have had the filter and fluid replaced within the last 3000miles. No difference

It has been doing this for the last 2 years with no change.. Any tips on making it consistantly snap into gear without replacing it.

(it has 278k miles)

My first guess is a vacuum leak.

Is the *personality* disorder related to temperature?

I would also repost this in the Diesel Forum.

It is by far the most active sub-forum on this site.

TRANS
 

had same problum removed all of the vac junk . Such as egr and switch over valves on on top of engine also valve on top of injector and ran vac line direct. every thing works better than when it was new ,also pluged egr valve.