Question about shifting into OD

[BenHolliday]

I'm actually unsure if there is really an issue, but I've noticed my 98 V6 4WD Explorer will not shift into OD until 50 MPH even under very light acceleration. I notice because it's 3 grand on tach and will drop to 2 grand. Maybe I'm just seeing issues that aren't there because I've never really noticed.

I've watched a video where a guy changed the valve body gaskets to fix reverse AND OD issues and there's also a post by BrooklynBay where he mentions 2nd and OD but the second feels fine.

Any suggestions?

Sometimes a code will get thrown if the band is either broken, or out of specification. It will also feel like the 2nd, and overdrive are a little delayed, and not positive feeling. Sometimes this could be mistaken for a rotted piston. First start with the band adjustments before replacing the pistons. There are other factors involved which could make the transmission have similar symptoms. Low EPC pressure could cause weak shifts. Bad sensor inputs from the VSS, BOO switch, and TPS could create a loss of overdrive, and TCC lock up. A bad governor could cause a 1-2 shift delay when it is cold. A bad modulator could cause shifting problems as well.

 

[1992fordgreen]

OD band could probably use an adjustment like Brooklyn bay said.

 

[BrooklynBay]

How many miles does it have? When was the last time the fluid & filter were replaced?

 

[BenHolliday]

How many miles does it have? When was the last time the fluid & filter were replaced?

160K and was done at 100K or 120K

 

[BrooklynBay]

The EPC & TCC solenoids are high wear components since they are pulse width modulated, so they might be worn with such high mileage. Check the valve body gasket near these solenoids, and the bolts for proper torque. The pulsating action causes the bolts to get loose, then the gaskets degrade.