My son's 1999 Grand Prix transmission pumped out most of the fluid through the vent (or relief valve?) today. I tracked the fluid trail back about 2 miles down the road and there was a lot in the driveway. He kept the car running after he parked to inspect for the source of the leak.
He said there wasn't a noise associated with it but there was smoke and the transmission was slipping, as expected with the fluid loss. When I got home, I started it up and fluid began pumping out the vent immediately.
Fluid barely registers on the dipstick, with the engine off.
This transmission is a Jasper reman and it was installed in May 2006.
Any thoughts as to what conditions would pump the fluild out of the vent?
Thanks.
