automatic or manual transmission ?
Check for a vacuum module on the transmission. If you see a vacuum line between the transmission and engine, disconnect the line and look for transmission fluid inside the line. If you see transmission fluid in the line, replace the vacuum module. It probably has a split or damaged diaphragm inside.
A 1992 Ford Ranger with a 5-speed transmission can typically be swapped into other vehicles within the Ford Ranger and Ford Explorer line, particularly those that share similar engine and drivetrain configurations. Additionally, it may fit into other Ford models that are compatible with the same transmission type, such as certain models of the Ford Bronco II and Mazda B-series trucks, which were built on similar platforms. It's important to ensure compatibility with the engine and overall drivetrain setup for a successful swap.
You will need the Ford Hydraulic Clutch Quick Disconnect Tool.
I'm not a mechanic / technician but I read once that the modulator valve for the automatic transmission has a vacuum line connected from the valve to the engine and that transmission fluid can be sucked into the engine if something goes wrong with the valve
where can i find a vacuum line diagram for 1989 ford 2.9 liter engine
Wikipedia has a great history of the ford ranger line.
What size is the steel brake line tubing on a 1994 Ford Ranger
It is located on the driver's side of the transmission toward the front of the transmission. You can identify it by the plastic hydraulic line that is attached to it.
If the line is connected directly, without a banjo, or flare fitting, then you will have to loosen the line, unbolt the slave cylinder, and twist the slave cylinder to unscrew the line.
Be sure the vacuum supply line from the engine to the transmission vacuum modulator is not disconnected.
a 92 Ford Ranger stuck in 4th gear can be caused by several things. Low fluid, stopped filter, broken vacuum line or a stuck transmission valve can all be the cause.
how do I bleed the clutch system in a 2004 ford ranger