Hey, what's up guys. My 2001 auto tranny with 107,000 miles sometimes has a jerk between 4k-5k rpms, and slips sometimes between 5k-6k rpms switching from 1st to 2nd gear. The rest of the gears/rpms are fine. I was thinking maybe there's a bunch of dirt/sludge in there that needs to be cleaned out, and I was trying to explore all possible solutions before I go the route of a rebuild/replacement. I wanna use one of these additives along with a flush with Mobil1 synthetic ATF (which I already have in there from a previous flush when my previous fluid was brown) and also add a tranny cooler.. but i was wondering if AutoRx is better than Seafoam, or vice cersa. Can anybody offer any insight on this? Thanx

 

anybody?

 

I would change the fluid 2-3 times via drain/fill or full changeout via the tranny line. THEN, look into maybe adding additives. I have used the ARX in my trans about 10K miles ago, and along w/ that I have done many fluid changes via drain/fill and it has really done some good to the trans, atleast as far as I can tell. It may be the new fluid alone that has helped, but maybe the ARX had something to do w/ the improvement as well, but not sure.

Start w/ the changes to be sure you got all the old junk out then drive it a bit and think about your additive you want to use. I have heard that some of the Seafoam stuff is quite strong, not sure about their tranny additives.

Hope this .02 helps

 

but the whole point of those transmission products from what i understand is to break up all the loose particles and get them out of the system.. so it wouldn't serve its purpose if i were to flush the system, then put the additive in

also, i've drained and flushed my system before and i still have the issues.. so this is probably the last step before i look into getting some transmission work done

 

yea wyche is right. those are intented to be done pre-flush.
i just posted about this like 2 threads down.

 

Yes, guys, that is true. I didn't realize/know that he already has done the flushes. Then, yes, he should check into the additives. He state that, but I missed it. SOrry.

 

you should look into Lubegard, bitog.com loves it. i've used it with no problems.

 

Arx hands down

 

I can say that I have ARX in my van's tranny due to a front seal leak and it may have a rear leak as well. If that stuff works, it's got my vote for sure! I hope it does!!!

 

Dont do a flush if the tranny is already slipping, most likely it will cause it to slip even more. When you say it jerks or slips at those RPM's, thats when you floor it right? If thats the case, do the drop resistor mod, put a tranny cooler.

 

wouldnt that put more stress on my tranny though? making it shift really rough 100% of the time doesnt sound like it would be good for the transmission

 

Faster shifts = less slip

Just like putting a shift kit in a domestic, the faster, firmer shifts are actually better for the life of the transmission than the stock, slower shifts. Less heat and slippage between shifts.