How to check and refill transmission fluid on Discovery 2?

The vehicle must be level and the transmission must be at room temperature (between 68-104 degrees F). The transmission cannot be any hotter than just warm to the touch. If you have just changed the filter or the fluid, remove the check/filler plug located at the right front of the transmission pan.

When does the check transmission light come on?

As of 2012, most new vehicles have a warning light that lets you know of transmission problems before they become a major expense.

What should the transmission temperature be on a 1999 discovery?

This procedure is for 1999 vehicles and up that are not equipped with a transmission dipstick. The vehicle must be level and the transmission must be at room temperature (between 68-104 degrees F). The transmission cannot be any hotter than just warm to the touch.

Why do I not have a transmission warning light?

Other problems, such as harsh or erratic shifting, not shifting from first gear automatically or transmission fluid that appears dark or smells burnt are problems that do not require a transmission warning light to tell you that there is a problem.

Why did the transmission warning light go off?

The warning light went off, and the transmission shifted normally between N, D, and R. But as I accelerated up the ramp back onto the expressway, the rig again lurched as it shifted (3 to 4?) and the transmission warning light came on again, indicating limp mode.

How can I check my Allison Transmission light?

Use the Intelletect switch if you have one. Start by verifying 12.0-14 VDC at the TWO transmission fuses in your chassis fuse box. Like any computer, low voltage due to bad battery, discharged battery, poor or corroded connection, etc can cause some peculiar issues. Next, query your Allison for diagnostic codes using your shift pad.