Aright, first off its not for a lumina, its for a corsica, but no one ever goes to the corsica section, so im postin it here.
'89 corsica 125k miles Th125C auto transmission. I think the early luminas had those too didnt they?
This thing was low on fluid for a while, about a month I think. And I think it did some serious damage in that time. It has always kinda slipped going into third gear, so I changed the fluid, and filter. I think I made it worse though. I have to let off the gas, or the engine will rev up before it will go into third now. First off I dont think I put the right amount of fluid back in there. The manual sai 3.8L... Kinda strange I though but OK. Checked fluid after I poured in a gallon of it. WAY low on the stick. So I put in another quart. Moved up a little but not a whole lot. Put in anoter quart, now its a half inch
above the full line.
Ive checked it every which way I can. Drove it around the block and checked it, still the same, drove it to the mall and checked it, still the same. Drove it home and let it sit a half hour or so, then cut it back on, put it in drive, then reverse, then park again. Checked it, STILL high. Wtf? It was way too low, I added 2 quarts and all of a sudden its too high? Is there something im doing wrong here?
Does anyone know EXACLTY how many quarts of fluid it takes to refill a TH125C after a change? This is really pissing me off.
