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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Farm boy on July 24, 2012, 07:39:44 pm

Title: Sea-foam trans tune
Post by: Farm boy on July 24, 2012, 07:39:44 pm
Hey before i do it: is there any reason not to run the Sea-foam trans tune in my turbo 350 tranny? I was thinking i might have heard something about it at some point but there is a very good possibility that it had been in reference to something else.
Title: Re: Sea-foam trans tune
Post by: Jason S on July 24, 2012, 09:04:05 pm
Is there a reason to run the Sea-Foam trans tune?  Are you having specific issues with the transmission?
Title: Re: Sea-foam trans tune
Post by: Farm boy on July 24, 2012, 09:18:32 pm
yah it doesn't shirt quite right, and it's spewed a little fluid up threw the dipstick a few time. Talked to a freind of mine and that's what said he'd do, but i thought i'd ask just to make sure.
Title: Re: Sea-foam trans tune
Post by: Jason S on July 24, 2012, 10:02:12 pm
I'm by no means an expert with automatic transmission issues and I'm sure others will chime in on the subject. 

Have you had the truck a while and experienced the issues or has it recently occurred? Have you checked the following:  1) transmission fluid level; 2) ensured the tranny cooler is not blocked; 3) had a filter/fluid change within a reasonable time frame?   

The reason I ask is that sometimes additives can often time mask an underlying issue.  I have used Berryman's B-12 to extend the life of an auto transmission (i.e., it helps soften hardened seals), but it really was just a "bandaid" for the real issue (i.e., the transmission needed an overhaul).   

I'm not saying the Sea-Foam won't help, it may be great if the truck had sat for a long time or was a slow driven farm truck; however, all things being equal one shouldn't have to add "additives" for the transmission to work correctly.

Any additional information might help someone more experienced with automatic tranny issues.

Title: Re: Sea-foam trans tune
Post by: winky on July 24, 2012, 11:44:22 pm
Jason has some pretty good advice. Not sure if the 350 has a vent tube like the. 700r. But I've had clogged vent tubes and trans filters cause it to spew out the dip stick (makes a pretty good fire when it hits the headers :/ ) not enough  and too much trans fluids can cause problems as well. I would also check the vacuum line going to the trans as well just my 2 cents
Title: Re: Sea-foam trans tune
Post by: Farm boy on July 25, 2012, 08:06:39 am
basically it acts like it has some gunk in there clogging it up a little so my plan was to run that stuff though it and then flush it.