Transmission problem on 1999 Toyota 4Runner

Occasionally when I start out the transmission won't "shift" but it corrects itself fairly soon. There can even be a couple months in between "episodes."

by in Willard, WI on April 13, 2009
1 answer 1 comment
ANSWER by on April 13, 2009
I would suggest driving the Toyota getting the oil hot, draining the transmission, removing the transmission oil pan to drain more fluid and be able to inspect the oil in the oil pan for debris. Change the transmission filter reseal the oil pan refill with transmission oil and a transmission additive made by a company called Lubegaurd drive the Toyota through all the gears and recheck/top up the transmission oil level as required.
COMMENT by on April 14, 2009
I received more information that you had been at a traffic light and pressed the accelerator pedal down and the truck didn't accelerate. Did the engine race up/raise revs per minute? If so the problem can be the transmission. If the RPM did not raise as you press down on the accelerator it could be many things, A scan tool should be used to see if there are any codes or pending codes stored in the truck's computer. It would be interesting to watch live data stream information on the scan tool to see throttle position values and air flow readings to see how much air the computer thinks is entering the engine on acceleration to see if any thing is odd. Fuel trim figures can be read right of the scan tool as well.
Related Items:
In some vehicles, the automatic transmissions over heat light may come with sustained highway driving or driving at a sustained speed. Our technicians tell us that flushing the transmission and cha...
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to b...
Hi, My Mechanic used four QTs of Coastal DexMerc Auto transmission Fluid and two QTs Coastal Synthetic Blend Mercon V Auto Trans Fluid when he serviced the transmission in my 4Runner 2004 (6 Cyl) S...
On vehicles with a manual transmission, worn shift bushings can cause the transmission to pop out of gear, especially when coasting down in 1st or 2nd gear. Replacing all the shift linkage bushin...