93 Mark VIII transmission issues

[compshmoe]

OK, when i bought my 93, the trans. would kick itself out of OD and into neutral while driving, so i let off gas until it would catch a gear, changed fluid and filter and so on, i drove it like that for 2 years until it finally gave out, i got another transmission from everdive three weeks ago, installed it and it does the same d*@n thing, i changed the trans. speed sensor, intake air temperature sensor, PCM, still no luck you drive along at 50 or 60 then kicks out of 4th into a neutral state, rpm's jump from 1700 or so to 3500.... any ideas?

 

[PayUpSuka]

I'm gonna bet the mlps sensor is out of adjustment. This sensor tells the trans which posision the gear lever is in. It might be sensing it's in neutral.

 

[compshmoe]

thanks for the info, after reading what you said about the mlps, i read up on it and all the symptoms seem to fit, on friday i'll get under there and check it out, will post what i find, thanks again.

 

[chargerxr]

I had the exact same problem on a 94 that I had. Swapped the mlps off of a parts car I had and it took care of the problem.

 

[compshmoe]

good deal, a confirmation, thanks chargerxr, now i feel a little better, it was starting to worry me

 

[compshmoe]

I just wanted to thank all for the MLPS info, that was the problem, I got a new one from Advance auto for $42.00, didn't have to change the plug, put it on, and have driven it for 4 days with no kicking into neutral when i drive. As a just in case, i also bought 1-2 and 2-3 accumulators and springs for cheap from http://www.transmissionpartsusa.com/ so that'll be my next project, although since the MLPS sensor change, my shifts have gone to super smooth, i almost can't feel it changing gears, so the accumulators are on the back burner for now.