Inside the transmission assy there are many seals and over age, they would deteriorate and harden. The transmission fluid plays a very large part in maintaining the condition and prolonging the lifespan of these seals.
When these seals hardens over age, they would leak internally and when it occurs, pressure loss would not allow th e transmission to work. Warming up the fluids would cause the components and seals to expand slightly thus you are able to get the required pressure to work the transmission.
At times it is the valve body that requires cleaning. Some valves might be stuck when parked overnight and this would not allow the pressures to travel the desired route to work the transmission.
If the trans fluid are bad, getting them replacemd might buy you some time but overall the trans is fatigued and would need a rebuild sooner or later. It would fail anytime.
Friday, November 27th, 2009 AT 3:10 AM