vibration en haut de 60km

vibration en haut de 60km, fait les freins au 4 roues, balancer les 4 roues, changer bearing du centre pour drive shaft, toujours des vibrations asser pour faire sauter le derriere de la boite. quelle est le probleme

 

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welcome to TW............Ill try to page OZ

 

As a Canadian, my French is embarrasingly rusty (cut me some slack though, mine is Acadian French. Every third word is English, every fourth word is a profanity).

But I'll give it a go:

He has a vibration around 60km/h (thats approximately 40MPH in American). He has re-balanced his wheels and worked on the brakes. He has also tried changing the driveshaft bearing but the vibrations remain. What else should he try?

*No guarantees of accuracy I have been drinking*

 

TORQUE CONVERTER CHATTER OR SHUDDER .
A very common problem with the A750 . A combination of mechanical spool valves and electrical solenoids are used to acheive lock up . Valve body wear is very common and all we as users can do about it is keep our oil super clean
For you guys with high mileage ......Read this http://www.sonnax.com/parts/1774
The SLU solenoid controls your torque converter lock up and is known to cause issues if flushing your oil doesnt help . If you suspect a converter issue , replace the SLU solenoid and change " all" the transmission fluid .The SLU solenoid can also be adjusted . Turning the screw in will increase pressure and possibly fix a shudder . Do not turn it in more than 1 turn .
Tap the brake pedal when you feel the truck vibrate . Tapping the brake will manipulate the brake switch and turn the converter lock up clutch off .keep your right foot on the gas and gently use your left foot to tap the brake . If the vibration goes away for a couple seconds , the lock up clutch or an engine missfire is your issue . This can " usually " be fixed by simply flushing your trans fluid . There is also a flash available from Toyota T-SB-0044-14.pdf and fluid additives from Lubeguard http://www.makcotransmissionparts.com/M465HA.html to stop the shudder but you will need to figure out if you have an engine issue or torque converter issue.
Lubeguard is well know in the transmission industry and works amazing for fixing converter shudders . You can see the product lower down in the threads .I would not post about Lubeguard if it didnt work . This post is designed to save you money , not waste it replacing your torque converter . Find some Lubeguard and "USE IT"
In the illustration below , its going to show you how to pick out a missfire .That vibration you are trying to pinpoint at a certain speed can be dublicated in your driveway if the issue is engine related .. To diagnose this , use the chart below
Scroll to page 20 and perform a stalltest http://fjcruiser-club.com/docs/RM/A7...0Transaxle.pdf
Page 29 of this PDF explains the Flex lock up circuit
http://www.toyotatundraforum.com/pdf/A750E.pdf
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http://www.tacomaworld.com/forum/te...hift-kit-shift-recalibration-kit-2nd-gen.html

What is the mileage on your truck . I would suggest a tune up with new spark plugs and making sure the throttle body and mass air flow sensor are both cleaned when the spark plugs are replaced
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Ya yest' tridtsat' gryaznyye chipov. Kotoryy ya dolzhen s"yest'?

 

Tabernac , Bienvenue au Tacomaworld

 

LMAO !

 

vibration en haut de 60km, fait les freins au 4 roues, balancer les 4 roues, changer bearing du centre pour drive shaft, toujours des vibrations asser pour faire sauter le derriere de la boite. quelle est le problème

Pretty good translation FUSE.

He says the vibration occurs when he is going over 60km/hr and that they are strong enough to make his rear end jump...

 

Merci!

I don't know how I missed "sauter" as a symptom. Making the back end jump and all is fairly serious haha. I'm blaming the wine.

Anyway, I guess maybe one of us can quasi translate an answer for him at some point.

 

Arghh , i didnt notice the rear end jumping thing either and sent him thinking he had a torque converter / tune up issue
It would be nice to know the mileage and if he has checked his universal joints though