Jerk in the car

Brother in law?

Yeah - kick him out and tell him to walk.

Usually, the Throttle Valve cable or linkage needs to be adjusted or your idle speed is too high.

U joints or worn drive line splines have produced this in other cars.

MR. GUY

I' ve had the U-joint problem in the past, and agree that might be the cause of the symptoms described. But since I didn;t know whether that car was traditional transmission- u joint- differential, I held my comment. Can't say that I ve seen this in CV joints on front drive.

milo

Hello Milo,

I may be peeing in the wind here but, I think you will find the LS 400 is a rear wheel drive. Least that is what I have read.

And are you talking about the 'splined that could be worn or brocken to causre the jumping? Because it has happened to me but, with a really old car. (Rear wheel drive).

Take care..............

Hello Taimur:

I like the car! I thought I would search for 'Auto-Transmissions' and any possible problem. Have a look and see please? I am still searching and hope to have an answer soon.

http://www.google.co.uk/search?sourceid=navclient&aq=t&ie=UTF-8&rlz=1T4GGLJ_enGB294GB294&q=Automatic+Transmission+problems

Take care...........And good luck.

Solution to jerk in the car:

Make him get out.

Sorry, couldn't resist.

If I were you, I would, I would notify the shop that replaced your transmission. If you have a problem with the transmission at some future date, this could affect the warranty. It is also possible that the engine computer has lost it,s memory from having the battery disconnected while the transmission repairs were preformed. In that case, it may have already "healed" itself, or will very soon. As was stated before, it could be the engine speed too high, but it may just be the learning process. If it was the splines of the driveshaft, or the universal joint, I would think that the leaches fine technicians at the transmission repair facility would have sucked more money out of you to repair this.

Again my best suggestion would be to notify the trans repair shop, if the engine speed has not corrected itself already. Good luck.

Hello bob c,

Good solid advice there. The care was not taken on a 'test drive' afterwards as it should have been, or this fault would have been obvious?

It could also be the cause for the screwed up drive in the first place? It is rear wheel drive and 10 or more years old, it is something that perhaps should have been expected at this age. Changing the gearbox, they would not have touched the rear drive axle, which could be where the 'spline' problem is? Well, if it is a spline thing?

Of course he could always replace the 'chip' and see if that remedies it?

Take care...........

Check the fluid level if an automatic. It may be low.