The trans in my EJ1 is starting to slap into second and third hard.
Does any one know the cost to repair an automatic transmission?
Is it better to get a replacement or repair original?
If so, where?

 

http://shop.synchrotech-transmissions.com/

 

How many miles on it? Last time ATF was drained and filled? How many miles between drain and fill? Any slippage going on?

 

I would definitely start with a 3x3 drain/fill before you worry about replacing the transmission. Use Honda OEM ATF.

That aside, it's more cost effect in the short term to replace the transmission with a used one rather than rebuilding it, unless you're doing the rebuild yourself. I definitely don't recommend rebuilding the transmission yourself unless you have experience doing so. Auto transmissions are complicated beasts.

The best option would be to replace it with a new one from Synchrotech, but that would also be the most expensive option. If you're planning on keeping the car until it dies, I would give Synchrotech a call.

 

127,000 miles

Every scheduled Honda maintenance done.

Slips a little when exiting the freeway. Coasting off exit ramp, when step on gas it revs like its slipping.
Foot off gas and re-engage no problem.

 

are you sure it is slipping or just the PCM unlocking the convertor?

AKA normal.

 

my car is doing the same thing. haven't done a fluid change in a while though. bought a the upper and lower shift solenoids cuz its a 94. probably the originals on it. after a fluid change, i'll see if that helps before i put the new solenoids on. thx for your post