Not very easily. The switch rides up against a large ball bearing that rides against one of the shifting rods inside the transmission. You'd have to find a way to pressurize the oil, 90-weight is not going to flow well thru the tiny area involved, i.e. it would take hours using gravity. Plus you'd have a hard time telling when it was full, although it's safe to assume that once you got the specified amount (approx 3 3/4 quarts) in it was full. That is not as easy as it sounds because you will tend to spill/leak quite a bit. How are you trying to remove the filler plug? You should be using the correct (10mm) square socket, NOT an open end wrench. I can't imagine the socket with a good-sized breaker bar not doing the job, even if it ripped the threads out of the trans case. You could carefully use some heat, but remember that a)it's full of oil, b) there's usually oil all over the outside, and c) it's aluminum. Pretty risky if you don't have a feel for such things. Dave S --- In dmcnews@xxxxxxxxxxxxxxx, Chris Almy <chris.almy@xxxx> wrote: > I'm in the process of changing the manual transmission fluid. Fortunately I > remembered another post saying to verify you can remove the fill plug > before the drain plug. Sure enough, the fill plug doesn't want to move. And > before anybody asks, yes I soaked it for days in liquid wrench. I don't > want to take a torch to it as I've never done that before nor do I know how > well the tranny will take the heat. > > Since I just removed the backup light switch for replacement, is it > possible to fill the transmission with fluid through that hole? I'm not at To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/