Question about 2012 Toyota Highlander Base 4dr SUV 2.7L 4-cyl. 6-speed Automatic
My car lost the whole gearbox oil on the N1 in 2010. Almost 3 gearbox repairer failed. two from Randburg and one from Polokwane in Limpopo. when i drive it for over 150km the car become weak and force me to pull it by the side of the road under the tree for an hour or two so that it cool down. till today i am experiencing the same problem. I really dont know the problem by now, the gearbox, sensors, engine or the crank shaft? help me please
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Posted on Jan 02, 2017
There is not enough flow at the sensor for a second oil filter. The sensor is at a dead end in the oil gallery. I recommend that you persue other options here. If you are concerned about oil contamination, don't be. There is nothing better than the factory filter...Look into adding more oil capacity; Look into an engine oil cooler; there is really no need for a second filter.
Posted on Sep 09, 2008
original issue sounded like thermostat but now that you have lost power i would have to say thermostat, blown head gasket, and warped head
to check thermostat find and remove place in pot of boiling water the see if it opens, then to ice water to check if closes.
the only way i know to check headgasket and head is to check oil and water. oil will have water in it, and water iw have oil in it
Posted on May 04, 2009
Motor out is not needed.
You need to disconnect the drive shafts, put a jack under the back of the motor, and put a trolley jack under the box before you undo it.
You do not say if it is auto or manual, removing the box is slightly different depending on which one you have.
Face the trolley jack so it can roll backwards easily, remove anything that may be stopping the box coming down and back. eg: exhausts, gear linkages/stick ( from in the cab if manual)
reverse and neutral light wires, oil cooler pipes.
You will need to lower the box with a couple of easily accessible bolts still in place at the bell housing. Do this slowly with someone watching the engine fan to radiator gap etc, and make sure you do not do more damage getting it out.
Now set both jacks to take equal weight, making sure the box is balanced and secured to the trolley jack before you undo the last bolts.
It is all about balance, alignment and going very slowly with the separation.
Do not rush it. Be very slow and calm. Sudden movements can bend the gearbox shaft, damage your torque converter, or worse, trap you.
When everything is right and secure, you will be able to shake the box by hand and pull it back.
You may have to adjust the height of either or both jacks to take it out cleanly, being very careful of how much you allow the back of the motor to drop and what it may contact or stretch and break as you do so.
Take care and work safe. :)
Posted on Oct 15, 2009
First thing I would check is the connector to the mass air flow sensor. It should be a cylinder in line with your air intake tube with a wiring connector on it. Clean the connector and reseat the connector securely. If that doesn't work, get MAF cleaner and clean the inside of the sensor itself. Only use MAF cleaner, not intake or carburetor cleaner.
Posted on Mar 23, 2011
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