[rodII]

I have a turbo 350 transmission. I replaced the original dipstick tube with a flexible transmission dipstick tube. The problem is the tube is leaking at the base where it goes into the transmission. Can't seem to fix the problem. The reason I replaced the original was it was bent and hitting the firewall and leaked also. Does anybody have a suggestion. I would appreciate it. Thanks Roger.

 

[6T6NOVA]

You could have damaged the "O-ring" when installing the new tube.

You might have to pull it out and buy a new "O-ring". Make sure you put some tranny fluid on the oil ring before installing the tube.

Bryan

 

[firebird77clone]

certainly the new tube came with a new o ring.

Drain the trans
pull the tube
clean the opening and the tube end with a good solvent
apply some blue permatex ( silicone ) to the O ring
reinstall.

 

[Paul Wright]

I ran into this once before. There's two types of seals. You may have the wrong tube and or seal for your year trans. I posted a picture/details but don't know where it is.

 

[The Big Al]

Some of the flexible style tubes the lower fitting screws together.

You can tighten the unit and it will squeeze the o-rings.

Some are just grooved aluminum bong, so the o-rings might be cut or damaged.

FYI, the cooling lines can leak and fool you into thinking it's the dipstick.

Also over filling will cause problems as well.

Al

 

[jarhead64]

The GM p/n is 1259475. It's a multi-lipped grommet that the tube slides into and then grommet slides into the tranny on top of the pan next to the cooler lines. The heat and oil causes it to get brittle and crack over time.

Here's what it looks like - http://www.rmsautoparts.com/proddetail.php?prod=1259475

 

[rodII]

Thanks for all the information. Hopefully, I will conquer the leak before it get me, it is frustrating. Thanks again. Roger