I had no idea where to post this, so heres where I put it. Ok so I got my 1970 deville, and it's been sitting for a few years. Well, I put it into drive and it desided it didn't want to go anywhere. We were trying to get it going for a while and it just didn't want to move, but it still went in reverse. Anyone have any suggestions? The ATF is full.
If the car was sitting and not driven for that period of time i would suggest removing the tranny pan and draining the old fluid out of it and replacing the transmission screen and filter with a new one, along with a new pan gasket and the right type of tranny fluid > while you have the pan off you will need to inspect the valve body in the transmission > make sure nothing is gummed up or dirty> smell your tranny fluid to see if it smells burnt> and after you drain the fluid into a pan> look for metal shavings in the fluid. You might want to change the modulator valve on the transmission also, they aren't very expensive. The main thing with working on transmissions is to keep everything as clean as possible so no dirt gets inside the transmission. It would be a good idea to get a Chiltons book or some kind of repair manual for that 1970 Cadillac to help you do repairs on your ride
Thank you for the help! The only thing I do know out of everything you just said was that the ATF doesn't smell like it's burning, we checked that out yesterday. We were thinking it might be the filter, so I'll change all that out that you said. Thank you again!
Well, most independent shops would have a machine to do it...... Try and see if you can find a shop that uses the BG flush system, they run a special solvent through the system to loosen and get rid of all the crud.....
Along with doing that, I would drop the pan and clean the pan/magnet, and change the filter...... You should have a great running tranny after that.....
And the cost varies anywhere from 30-80....... Some places will let you bring in your own ATF, so you just have to pay for the machine useage...... And if you look at it this way; 80 is better than a 1500 tranny rebuild!!!
Actually, I found a $335 tranny rebuild kit for it, with higher performance stuff, so if worse comes to worse, rebuild time. I'm planning on changing the filter soon. I don't know when though. Probably in a few weeks. I have to get it registered first. there aren't any plates on it and my neighborhood hates when people work on cars, so if i don't have registration and i'm working on it, they'll try to tow it, but if i have registration, it'll be better.
Ok, tranny is worse than i thought. Now It doesn't even stop the car when it's in park, i let off the brake and it keeps rolling... It also doesn't go into reverse anymore or drive. Nothing works, it's like ever gear i try to put it in, it's neutral. please help with any suggestions.
Start calling around and getting some estimates on rebuilding your transmission > also check prices on already rebuilt transmissions for your 70' > Lets face it man your tranny is 33 years old > it needs a rebuild, but you can usually save alot of money by finding one already rebuilt and installing it yourself, or a friend that has mechanical experience do it for you! Try and buy a Repair manual for your car, you really need one.
Personally, i wouldnt waste my money on that...... I would take it somewhere and have them rebuild it...... Chances are its going to need more than just clutches...... The valve body will need going over, accumulators, etc........ you mught as well do it right the first time!!!