Well what I am talking about is the transmission oil pump. As soon as the car engine is running, and even with your shift selector in neutral, the TC is running because that is tied to the flywheel, but the mainshaft enters into the transmission body and the first thing it runs through is the oil pump. This pump pressurizes the TC, also all the valve bodies in the transmission. So number one is the oil pump. If that has failed your vehicle will not move. An instaneous failure almost certainly has to be an hydraulic pressure failure, eith the pump is not pumping or in some other part of the transmission, a gaskey failed or a casting broke and it doesn't have any pressure. Now if you have your old filter you could re-use it for a test - but make sure it is not contaminated with debris. Then dump in 6 of 7 quarts of oil if you wish to make the test, (transmission oil of course). Sometimes the shift selector can come off, sometimes it breaks off inside the transmission. These cars are getting quite old, anything can happen.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!