Here's the general procedure, but remember this is not a substitute for consulting your owner's manual or a qualified mechanic:
1. Warm up the transmission: Run the engine until the transmission fluid is at operating temperature. This usually means driving the truck for 10-20 minutes.
2. Find the transmission cooler lines: These are lines that run from the transmission to the radiator. They're usually located near the front of the transmission. One will be the supply line (from transmission to radiator) and the other the return line (from radiator to transmission). You'll need to consult a diagram or a repair manual to be absolutely certain which is which. Some Rangers may have an external transmission cooler, making this process even more involved.
3. Locate the appropriate access point: There's usually a check port, usually a bolt or a fitting on the return cooler line (the line going back *to* the transmission). Again, double check this with a diagram! This is often where you'll check the fluid level.
4. Prepare to check the fluid: Have a clean container or rag ready. A small container is best to avoid spilling.
5. Remove the check plug (carefully!): Very carefully remove the check plug. The transmission fluid will be hot, so proceed with caution.
6. Check the fluid level: The fluid should be at or near the bottom of the port. If it's low, you may need to add fluid. If it's flowing freely out, the fluid level is correct. If it's barely coming out, it's low.
7. Replace the check plug: Once you have checked the level, tightly replace the check plug. Do not overtighten.
Important Considerations:
* Safety First: Working under a vehicle can be dangerous. Use jack stands, not just a jack, and always work in a well-ventilated area.
* Fluid Type: Use only the correct type of automatic transmission fluid specified in your owner's manual. Using the wrong fluid can seriously damage your transmission.
* Professional Help: If you're uncomfortable performing this task, take your Ranger to a qualified mechanic. Improperly checking the fluid level could lead to damage to the transmission. They will have the proper tools and knowledge to do it correctly.
* Low Fluid: Low fluid is a serious problem, and is rarely due to a leak in the system. It usually indicates an internal transmission problem requiring immediate repair. Adding fluid may be a temporary fix but it won't address the underlying issue.
It's strongly recommended you consult your 1993 Ford Ranger's owner's manual for the precise location of the check plug and detailed instructions. This information is for general guidance only. Improperly performing this task can lead to injury or damage to your vehicle.
