Pic 3: Shows the Land Cruiser A-pillar pod I ordered from "". Fortunately, the sender is pretty well protected, so the chances of it getting damaged off road is not huge. I took the oppertunity to put back in 5 quarts of Mobil 1 ATF. But I see this is pretty common from other posts. Strangely 5 quarts came out, even though the book says only 2 should have. The sending unit itself protrudes another approximate inch into the pan.īy the way, does anyone know if the stock A/T oil temp idiot light is suppose to come on and then off with the ignition switch like most of the other lights? Because mine doesn’t come on at all. The number of threads on the sender is the same as the stock drain plug. I made a washer that fit, but I’ll be checking to make sure it doesn’t leak. The head of the sender is smaller than the drain plug, so I couldn’t use the stock crush washer.
To install, I just removed the stock plug, and drained out almost exactly 5 quarts of tranny fluid (a lot more than the 2 quarts the manual says for some reason). Neither will work with this trans sending unit, even though VDO advertises all their sendings units as being 10-180Ohm range. One with a range of 100-250, intended for water temp and one with a range of 120-300, intended for oil temp. But at least I'll know the tranny is headed towards overheating before the light kicks on at 300+ degrees. So, in a way it's a glorified idiot light. On the other hand, if the needle is anywhere but the low point, there’s no mistaking that the tranny is headed for trouble. (See pic in second post) So, most of the time, the needle is going to be setting near the low point. To make matters worse, the gauge face basically has 150-200 degree range as the first two hash marks and the 200-400 degree range make up the rest of the gauge range. The problem with this gauge is that it has a range of 150-400 degrees, whereas our transmissions generally run under 200 degrees.
The sending unit matches up with VDO transmission temp gauge part No. It’s not a common sender at all, but I finally tracked one down. And there were no adapters in that size to mate to any other sender. It’s a pretty small plug and after spending almost a week and countless hours searching the web and visiting a local instruments supply store, I came to the conclusion that there was only one temp sending unit on the entire planet that was that size. The problem is the drain plug is M10x1.5. I wanted to install the sender in place of the drain plug. I know a lot of people have installed senders in the lines, and other various places, all of which are nice set ups, but I wanted something simple and easy.
This is what I finally did to install a transmission temp gauge.
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