00maxipad

iTrader: (1)

I been lookin cant seem to figure out the problem. When I drive on the highway doing about 65 for like more than 15 minutes or so if I drive faster or harder it happens soooner...IT just kicks down a gear and rpms go through the roof feels like its kicked down a few gears...thats how high they go... Its a 00 GLE with 115k on it... Driven mainly street driving I tend to have lead foot....Im think the whole tranny is about to die out on me but not sure..thinkin I should have the whole thing rebuilt any body have any possible ideas? Thanks in Advance Josh

kcowden

iTrader: (2)

Can't begin to imagine what the problem maybe but it sure IS NOT normal. Could be something as simple as a selonoid or the tranny could be shot. A trip to a good tranny shop should be on the schedule. Good luck and let us know.

foodmanry

iTrader: (15)

Hmm.....sounds somewhat similar to an issue I had in the past. At times I would turn the O/D off on my tranny while going up a hill or whatnot. I would turn the O/D back on afterwards and the tranny wouldn't shift. I found it was an issue with the tranny overheating. I installed a tranny cooler and it has been fine ever since.

pinakbet

+1

Sounds like what I've been experiencing myself.

Early last year my radiator started to leak from the top and bottom. I changed it out but bypassed my aftermarket trans cooler.

I hooked it back up when the car exhibited strange shifting behavior and have not had the problem since. I guess the replacement radiator i installed is not as efficient as oem.