I definitely have a trans leak, which is slight coming from the inspection plate. My drain on the torque converter is tight. It has to be the front seal. I am not eager right now to pull the trans out and put on a new seal. My seal is only a month old. When I recover from all the $ I poured into this, I may just go ahead with new seals and a rebuilt C4 trans from autozone for $450.00. In the mean time, has anyone had any luck with those "trans stop leak" additives they sell at the auto store in quart bottles? :bananaman
Does your car get driven much???Front seal on my dads 51 pontiac leaks when it sits all winter(350SBC/th400)Once it gets about 50 or 60 miles on it, it stops leaking and is good to go all summer.I have had limited success with stop leak additives.Seems like most are just thickening agents.I cant help but think thats not good for the trans in the long run.
I have 200 miles on it since the rebuild. Old trans but new seals and cooler lines. I figure when I have $450 to spare I will get a rebuilt one (months from now) in the mean time an additive may help.
If anything will work it is Lucas. Anything Lucas makes I will swear by after using a few of their products.
Anything that swells the seal at the torque converter will also swell every other seal in your transmission. When the seals swell they get brittle. It may stop the leak for a period of time but it is not a long term fix. When you installed the seals did you lubricate them before installation? I coat the lips and groove with Vaseline and the outside diameter with sealant before I install them. I have seen many converter seals leak within five minutes when they are installed dry. The problem is that the lip of the seal burns off from friction long before it gets lubrication from the ATF. Removing the transmission and separating the converter to properly install a new seal could give you years of use from your transmission. What is the investment worth to you?
