Vibration during acceleration on low speeds

[Mambero1]

Hi...first of all just want to mention how great this forum is....solved a couple of problems thanks to you guys...

I have a problem with my 2010 4wd runner....few weeks after driving it during a flood during acceleration at a constant speed at 30 mph and 45 mph the car starts to shake...i sent it to the my mechanic which did the following...first checked joints and steering..then changed a chain on the Lo4, then changed torque conveyor, and finally the a750f tranny....shake diminished significantly but after 4k dollars it is still there!!! I am frustrated and i am wondering if any of u guys had something similar happen....this is my last chance to find out what i can do to fix it before i sell it :gun6: and get rid of it....thxs

Oh and by the way i also get a po420 and po430 codes come up during scan, checked o2 sensors ok, catalytic converter ok, no leaks on the exhaust system....any ideas?!!!!!!!

 

[Biggcrisp]

Get a better mechanic

Hi...first of all just want to mention how great this forum is....solved a couple of problems thanks to you guys...

I have a problem with my 2010 4wd runner....few weeks after driving it during a flood during acceleration at a constant speed at 30 mph and 45 mph the car starts to shake...i sent it to the my mechanic which did the following...first checked joints and steering..then changed a chain on the Lo4, then changed torque conveyor, and finally the a750f tranny....shake diminished significantly but after 4k dollars it is still there!!! I am frustrated and i am wondering if any of u guys had something similar happen....this is my last chance to find out what i can do to fix it before i sell it :gun6: and get rid of it....thxs

Oh and by the way i also get a po420 and po430 codes come up during scan, checked o2 sensors ok, catalytic converter ok, no leaks on the exhaust system....any ideas?!!!!!!!

If this BS is true......(pics of invoice for example)
put the wheels up off the ground and run the thing while observing for the wobbly part.
No self respecting mechanic would throw parts & $ at an unknown fix.

 

[Stu-Runner]

If this BS is true......(pics of invoice for example)
put the wheels up off the ground and run the thing while observing for the wobbly part.
No self respecting mechanic would throw parts & $ at an unknown fix.

Agreed. This story sounds like BS...

Stu

 

[Mambero1]

Sounds like bs but it is not...
Money spent:
Torque converter 780usd
Refurbishes tranny 1600
Chain for Lo4 300 usd
Trnasmission fluid change several times 200 usd
SERVICES BY MECHANIC 900 usd

Thxs anyways

I guess i'll have to sell it

 

[scottjhl]

is this a joe-smo mechanic or the dealer??

900 for labor seems quite a bit high, along with the question... why would he replace parts that are ok, and probably did not need to be changed... How many miles do you have? and how often are you using 4x4?

EDIT:
after looking at your location of bolivia - I am guessing its just a regular mechanic, and he really does not know what he is doing

 

[Mambero1]

75k miles...i dont use 4x4 ever...i did use it while driving during the flood...flood got to mid door level...when i took it in he drained fluids which had water...engine oil was good no water...i guess it is just one of those problems that dont have a fix

 

[Mambero1]

could it be powertrain or engine control module faulty??????