What color is the automatic transmission fluid (ATF)?

When is the last time the ATF was changed?

Has any work been done recently on the truck like tune up, stereo
installation, etc?

Is there any difference if you move the gear selector into a specific range?

On Feb 23, 3:19 pm, harley.chapp...@gmail.com wrote:

On Feb 23, 3:19 pm, harley.chapp...@gmail.com wrote:

The V6 4runners won't go into overdive unless the ECT (tramsmission
control) computer is receiving a signal telling it that the engine has
reached operating temperature. If your thermostat is OK, and the
temperature gauge reads about midway, then try this: locate the engine
coolant temperature sensor. It's on the top of the engine, drivers
side, up near the firewall, it's the sensor with a 2 wire plug, next
to the single wire (gauge) sender. After the engine has warmed up,
shut off the engine, pull the connector off the sensor, and fit a 150
ohm (brown-green-brown) resistor, any rating, across the two
connections.You can just stick the resistor leads into the connector.
This will "trick" the ECU into thinking that the engine has reached
operating temperature. You can tape up the resistor/ connector so it
doesn't short out against anything, then restart the car. If the trans
now shifts OK, then the problem is the coolant temperature sensor. You
can actually drive the car like this without any problem, although it
might be a llittle difficult to start when dead cold. The sensor is
about $30 at NAPA. I started experiencing this problem when the
outside temperature began dropping, a new sensor fixed the truck!