I have the same vehicle and had a similar problem. The issue was a faulty transmission computer. Cost $600 installed for a used one that has been great for last 4 years. Hope that helps.
No, they will not interchange.
why is my manual transmission slipping on my 1999 chev cavalier
The most compatible and completely interchangeable transmission that can be used with a 1999 Jeep Grand Cherokee Limited is the 45RFE transmission. This is from a 2000 Jeep Grand Cherokee. Only this model year is compatible with the 1999 model year as the vehicles shared 127 of the exact same parts.
R&R transmission pan and replace filter in pan..?
The bell housing is between the engine and the transmission.
It uses ATF+4.
It may fit, but it is not plug and play. The computer and trans systems are different.
A seat from a 1999-2004 Grand Cherokee is what fits in a 1999-2004 Grand Cherokee.
Mopar ATF+4
A Jeep Cherokee had a AW 4. A six cylinder Grand Cherokee had a 42 re. An eight cylinder had a 45rfe.
P0700 : transmission code present. P1792 : battery power was disconnected.
you need to change the fluid. my 99 grand am does that, it feels like you're shifting a manual from 1st to 2nd.