1990 Lexus 225,000 And Still Going

[multi fluid]

Hello all, im new here and for all you LS400 owners and LS430 owners i can assure you that your money is well spent. My gut feeling is telling me that its the transmission but some input would be helpful. 1990 has 225,000 yes it's not a typo!! engine still purrs however i have recently noticed that once i get to 50mph and higher very heavy vibration occurs. Anything under 50mph no hesitation or vibration as long as overdrive is not turned on.

Im not sure wheter it the engine mounts or the actual tranny. Im still unsure whether it's worth the investment in a rebuilt tranny for a car over 10 years old and with 225,000. She has been good to me over the years.

Any input would be appreciated.

thanks

[Monster-Mat]

dont assume its the transmission........it could be either the prop shaft bearings/UJ or imput flange bearing on the rear differential,i would get your engine and gearbox mounts looked at aswell........but i doubt its as bad as you are hoping it is'nt.

mat

[hammo400]

Hello,

I'm new to the Club as well. I have a couple of questions about LS 400 transmissions / electrical system.

I have a 1991 LS400 with 105,000 miles. I have noticed - or this may be my imagination - that as I'm at speed on a level highway that when I take my foot off the gas that the speed seems to reduce quicker than expected. I've checked the brakes for rubbing -NO.

If there were something rubbing in any part of the tranny, would I know it ? I don't hear any noises when shifting nor feel any slippage and the tranny shifts smoothly and quietly. Could it be as simple as the axles need greasing ?

I also noticed that on the highway when I was at 120 mph that a little smoke seemed to be coming from the gearshift console. It went away at sub-100 mph speeds. What could be rubbing as the driveshaft rotates faster ? Again, no noises. Also, If there is too much transmission fluid in the transmission, what are the effects ? Could this be the cause of the tiny bit of smoke? Could something be burning /melting on the driveshaft - undercoating, maybe ?

The car is insulated so well, I could have a bon fire underneath and not know it.

Re the electrical system. My cruise control has stopped working. No light comes on the dash when I press the button on the steering column and the system doesn't engage. I'll check the fuse, if it's not this , what else could it be ?

Any comments would be much appreciated . They can also be sent to my regular e-mail : <gregehammond@yahoo.com>

Thanx

[Steve]

Does the car roll ok when in neutral?

Take it to a very slight hill.. can be very slight and see if she rolls in neutral freely... if it doesnt then need to check why.