The Nissan Path

2008 LE 4wd 103k. I've been having torque converter drop out the last couple thousand miles. Does this mean my tranny is going soon? For those that don't know drop out is when you are driving along in any gear and let off the gas rpms rapidly drop to idle and the tranny bucks a bit when you hit the gas again. I bypassed and replaced my radiator a few thousand miles ago. When I bypassed the original radiator before it failed I only had a little tranny fluid leak.

I have the same symptoms. I have an aftermarket radiator. I seem to be less noticeable when its very cold out, or the heat or AC is off. Never does it when the overdrive is turned off. Perhaps a transmission fluid change will help?

kneehurts wrote:2008 LE 4wd 103k. I've been having torque converter drop out the last couple thousand miles. Does this mean my tranny is going soon? For those that don't know drop out is when you are driving along in any gear and let off the gas rpms rapidly drop to idle and the tranny bucks a bit when you hit the gas again. I bypassed and replaced my radiator a few thousand miles ago. When I bypassed the original radiator before it failed I only had a little tranny fluid leak.

Did your first tranny fail even after the by pass was done? And if so, was it the same failure (mixed fluids) as all or most others?

That's terrible.

Mine has done this since I bought it 40K miles ago. I took it to two dealerships who said it's normal.

Almost seems as if the lock-up torque convertor is engaging.

NmexMAX wrote:

kneehurts wrote:2008 LE 4wd 103k. I've been having torque converter drop out the last couple thousand miles. Does this mean my tranny is going soon? For those that don't know drop out is when you are driving along in any gear and let off the gas rpms rapidly drop to idle and the tranny bucks a bit when you hit the gas again. I bypassed and replaced my radiator a few thousand miles ago. When I bypassed the original radiator before it failed I only had a little tranny fluid leak.

Did your first tranny fail even after the by pass was done? And if so, was it the same failure (mixed fluids) as all or most others?

That's terrible.

It's still on the original transmission. Tranny fluid was changed by nissan dealer at 90k. I recently changed out the radiator when the original started leaking from every seam. Luckily I completed the bypass last winter.

your certain it's the torque converter? the reason i ask is that if a ujoint on the drive shaft is going bad it would produce almost the same buck when getting on and off the gas pedal. it's from drive shaft slack