I own a camaro, but this is regarding my other car, it has a TH350 trans in it. I had a leak in one of the cooler hoses that i finally tracked down and stopped. The car was slowly loosing fluid and i didnt know it. So now that the leak has stopped, i just need to top it up. Its a big hassle to take off the pan with the tools i have so thats not an option right now. I dont know how much fluid is in there, ive added a couple liters since i stopped the leak. But i need to fill it to specs. The dipstick doesnt pick up anything yet when the car is idling. On the 700R4 on my camaro, there is a little "plug" on the side of the trans, that will overflow when the fluid levels are correct. is there something like that on the TH350? If not, are there any suggestions on how i could get the right level. Any help appreciated.
Azeem

P.S.
Ive been using the dipstick neck to fill it so far, only prob is, i dont know if its the right level, cuz the neck gets covered in oil, and onto the dipstick, u cant make a reading.

 

All i have ever done was dump it in till it reads full on the stick...
AFAIK their is no plugs on these trannys.

Give the ATF a second to all drain down the tube when your trying to check it and dont forget to bring it all up to operating temps

 

There isn't even something like that on the 700R4. Which plug is it leaking from?

 

You just keep sticking it in, pulling it out, and wiping it off until you get all the bubbles/hang-up cleared out and can get a clear reading on the dip stick.

 

On most auto trans there is a fill plug, u idle the car with the plug off, and fill the trans untill u see a little bit come out of that fill plug hole, indicating that its full. On the driver side of my 700R4 about 3" about the shifter linkage, there is a 5/8ish bolt going into the trans. I unscrewed it and pulled it out, it just looks like plug, but isnt big enough to be used as a fill plug. Im assuming thats what its for.

 

I don't know where you got that bit of info from, but it's incorrect.

 

No automatic transmissions WHATSOEVER use a "fill plug". Whatever that plug you're taking out is, it's not a "fill plug".

You're taking off a band adjustment cover plug or some such.

You check the fluid in automatic transmissions - ALL automatic transmissions - with the engine running, and the gear selector in some specific gear. In the case of GM transmissions, it's usually Park. Other mfrs, esp. Chrysler, sometimes use Neutral.

So forget about the plug; just put it back, and leave it be. It's not for filling the transmission.

Add fluid through the fill tube (that's the tube where the dipstick goes in... it's not the "dipstick tube") until, with the engine running and the transmission at operating temperature and the car on a level surface and the transmission in Park (or Neutral if that's what it says on the dipstick), the fluid reads between the "Add" and "Full" marks on the dipstick.

Manual transmissions use a fill plug. Not automatics.