I recently had the window regulator and motor replaced in the driver's side door on my 1999 Corolla because the motor was making groaning sounds when the window was rolled up. About a month after the new part was installed, the window jumps the track and will not roll up past
3/4ths of the way. I bought the part seperately online, and the place that I bought it from is going to send me an RMA. Rather than paying again to have the part removed and reinstalled at the mechanic or dealer, I've decided to do it myself. I need to open the door, remove the defective part, and then reinstall the replacement once it arrives. I still have the original part, which still works, just noisily. Can I use the old part temporarily, and if not, is there any way to lock the window in the up position until the replacement gets here? Are there any guides online on how to do this repair or at least open the door?As for the oil disappearing, it's very perplexing. The car is driven a lot, 60 miles round trip 4 days a week for work. Total milage is a little over 120K, around 80% is highway miles. I change the oil every
3000 to 5000 miles, and it's always half a quart to a quart low when the oil is changed. At first I thought it was leaking, so I parked the car over a drop cloth for over a week without a hint of any drops. I had the mechanic look at it to see if there was any leaking when the car was running, and they ran it up on a lift for over an hour and no leaks. The underside doesn't show any oil residue at all, and they even had me come over and see for myself. The car passed its emissions test last month with flying colors, but they took the reading for the test from the computer and not from the tailpipe, so I'm not sure how accurate the reading really is. The engine does have some sludge in it, but it's not too bad. I haven't noticed any blue smoke or oil in the radiator water, and don't think it's burning any oil, but every time the oil is changed, some of it is missing.Any ideas?