b8b

Hi All,

I sold the LS430 I used to have and recently bought a 1999 LS400 with 126k miles. The timing belt had been done, it had all the records and the Nav had even been updated to 9/2003 (lol).

It had a slight shake in the steering wheel when I bought it but I thought that was just the alignment or tires out of balance. I got the tires balanced, but that did not fix it. I was jump starting my other car when I noticed that at various RPM's the engine was shaking like crazy, and that would shake the steering wheel (even when sitting still). Is this a simple motor mount issue or something worse? The engine sounds OK, but I am not certain, there is a slight belt squeek or something I am hearing. Is it just the engine bushings that need to be replaced, perhaps? I see a DIY here but I am not that mechanical.

Can anyone recommend a good mechanic in Scottsdale/PHX area who won't rip me off because it is a Lexus? Perhaps even gives free estimates?

Thanks!

black_LS

I had this exact problem. I could feel a strong shake in the steering wheel and shifter **** while reving in park. It turned out to be the transmission mount. $40 part, 20 mins of work.

b8b

Only 20 mins of work? Nice! I hope it is just the tranny and not the engine mounts too, but I can see the engine surges when the engine is rev'd, so I think it might be both. Thanks for responding, black_LS!

black_LS

It's real simple. Lift up the front of the car and put it on jack stands. Use a jack to support the transmission by the oil pan (put a piece of wood in between). Undo a few bolts, remove the bracket, replace the mount, and do them back up.

mex lex

iTrader: (4)

Contact Kyoei USA, the owner is a fellow member and LS owner. He will check out the car and give you an estimate for free. His rates are more than fair . He's done work for fellow CL members and plenty can vouch for him, including me.

480.921.2995
http://kyoei-usa.com/contact.html

b8b

Is there a way to figure out if it is just the tranny mount or if I need engine mounts too?

Thanks for the tip, MexLex!

b8b

Now I am beginning to wonder if it is the transmission mount at all (it looked kind of OK to me, what do you think?), or if it is the engine mount. I have attached pictures, please let me know your your opinions are. Sorry, it was dark out, I don't have a jack, I had to put it up on a curb and crawl underneath:





Here are some pics of the front right engine bushing, I can't tell at all from this angle:




And, if I may ask, does anyone know what is this leaking, does it matter? I was laid off my job in June and can't afford much anymore:



Thanks!!

PureDrifter

iTrader: (10)

might be the high pressure hose leaking above the rack onto it.

you cant really tell if the trans mount is broken while the weight of the trans is still on it, only way to tell is to take it out. 8/10 times, its dead.

arnage

Hi,
Could someone kindly provide me with the part #s for the motor mounts (front and rear) as well as the transmission mount for a '99 LS400?

I tried searching the park place auto parts site and was only able to find the Front mount and the Rear mount -- but I couldn't find any search results for the Transmission mount.

Also, if I were to bring this to an independent to perform the change, do I need to purchase the mount brackets?.. I presume not, but I figured I'd doublecheck.

So far, the front and rear ($110 / $40 respectively) mounts are totaling to $140. Does this sound about right?... Thanks for your help.

arnage

This was what I was able to come up with:

12311 BRACKET, ENGINE MOUNTING, FRONT NO.1 RH
12311-50021 1UZFE..UCF20 1 $121.80
12315 BRACKET, ENGINE MOUNTING, FRONT NO.1 LH
12315-50011 1UZFE..UCF20 1 $121.80
12361 INSULATOR, ENGINE MOUNTING, FRONT
12361-50100 1UZFE..UCF20 2 $197.28
12371 INSULATOR, ENGINE MOUNTING, REAR NO.1
12371-50060 1UZFE..UCF20 1 $69.37
12381 STABILIZER, ENGINE MOUNTING
12381-50080 1UZFE..UCF20 2 $32.45
12391 INSULATOR, ENGINE MOUNTING FRONT, HEAT, RH
12391-50040 1UZFE..UCF20 2 $18.31

I believe the insulator engine mounting (front and rear No.1) would be what I need for the engine mounts (again, I'm assuming brackets don't need to be replaced?..).

I'm still having a difficult time locating the transmission mount. Does anyone know the answer to this?

Kansas

The part numbers can be obtained at http://www.t o y o d i y.com

Remove the spaces from the above URL to use.

b8b

You need two front mounts

arnage

Yeah.. for the benefit of those who were initially as uninformed as I was, this is what you need for replacing engine / transmission mounts on '95 - '00 LS400s..

12361 INSULATOR, ENGINE MOUNTING, FRONT (x 2)
12361-50100 1UZFE..UCF20 2 $197.28
12371 INSULATOR, ENGINE MOUNTING, REAR NO.1
12371-50060 1UZFE..UCF20 1 $69.37

The "Rear" 12371-50060 mount is alternatively referred to as the "transmission" mount. Perhaps due to its proximity to the transmission.. not sure.. in any case, I was confused as I kept hearing you need 3 mounts total.. 2 for the engine, and 1 for the transmission, not realizing that it really means 2 front engine mounts and 1 rear engine mount.

The total amount I paid was app $258 shipped. An independent shop says they are willing to change the mounts out for $250 in labor. so all in, roughly $500. not sure how this exactly compares, but presumably cheaper than going to the local authorized dealer..