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Won't shift to third gear nassan sentra

\015 I need to move shifter back and forth for a while to get it to shift right .\015 Posted / edited by AnonymousUser on : 29-11-2021

Answers :

Usually this simply an indication that the system pressure is bleeding out somewhere. Often the teflon sealing rings on the front support are to blame, sometimes the governor gets a little sticky. If no error codes are being registered, and this only occurs when cold or the first 10 miles of driving the vehicle, you can add some seal conditioner and hope that helps the seal issue, or you can pull the transmission and rebuild it.

You can have most shops road test it while doing a pressure test for a moderate fee if you do not have the equipment.

This is fundamentally true for most any automatic shift transmission.

If yours is a manual transmission, there is wear in the plastic bushings and linkage rods of the shift mechanism. And potentially damaged blocker ring teeth on the third gear..

The\012following are the general instructions on the start of diagnosing any\012electronically controlled engine or transmission problem.

The\012engine and the automatic transmission (transmission control is only\012for automatics, engine is still computer controlled no matter the\012transmission type) in this vehicle are computer controlled and in\012most cases when a fault occurs a fault code is stored in the memory\012of the computer control module. There are exception to this, such as\012the Mass Airflow Meter and fuel pressure problems. What must be done\012is to have all the basic testing done such as a scan of the system\012for fault codes as well as a check with a live data scanner tool for\012engine functions that are not within range of normal, a trained\012technician is required to know what is correct and what isn't, then\012based on careful diagnostics done from a factory repair manual the\012correct part is replaced or the wiring repaired or the computer\012replaced (known as the PCM or ECM,ECU), which is very rarely the\012problem. Other basic checks must be done as well such as mechanical\012problems with the engine as well as engine state of tune and mileage\012on the engine. The transmission can have mechanical issues as well\012such as no gear engagement at all or a failed pump or other pressure\012related problems. Also engine mechanical problems can and do cause\012many drive-ability related problem such as rough idle and other\012symptoms.

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