Asked by Oct 03, 2016 at 01:53 PM about the 1986 Chevrolet C/K 10 Silverado LB RWD

Question type: Maintenance & Repair

So one of my transmission cooling line broke and
alot of fluid drained out while I was driving. I fixed
the line but I am not sure what kind of tranny fluid I
need and I tried to slightly move my truck but when
I put it in drive it would not move. Is that due to no
or low tranny fluid?

2 Answers


You should never try to uses the transmission without fluid. Purchase some DEX/MERC trans fluid and add to the proper level. Engine on, warmed up to operating temperature, in park, on a level surface. IF it still doesn't move, there is probably damage from running low on fluid. Was it for many miles? Heat/friction is a killer or transmissions.

Bout a mile or less part of it was up a hill doing about 15 and the rpm sounded high then coasted down the hill in neutral and then I popped it back in gear to go on a flat surface got up to about 25 miles an hour and then Coast the rest way home in neutral.

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