Hey all,
I have a 94 Ford Bronco with a 351W and an E4OD tranny. I have about 135K miles on it. The tranny shifts very slowly from 2nd to 3rd. Literally, it takes 2-3 seconds for it to finish shifting if I don't let off the accelerator. Shifting from second to third, it will drop a couple hundred RPMs and then about 1-2 seconds later it will drop another couple hundred RPMs and is then in 3rd gear (I hope this makes sense). I realize this tranny is on its way out, but I would like it to hold on awhile longer.
I was cheating on Mud by perusing another forum (gasp!) and someone had a similar problem. One of the suggestions was to drop the pan and put in a new tricumulator and sonnax valve. Anyone here have an opinion on this? I'm not very versed in auto trannies. Will this help? Any E4OD experts here? Links below:
Tricumulator - Tricumulator, E40D / 4R100, spring package *(A36926BK): Bulkpart transmission parts
Sonnax valve - Valve Kit, Accumulator Regulator , E40D: Bulkpart transmission parts
I also found on the same website this:
Sure cure kit - SURE CURE KIT, E4OD 89-UP(SONNAX): Bulkpart transmission parts
Will this accomplish the same thing or is it altogether different. I should mention that it also takes awhile for it to shift into reverse. That's what caught my eye on the "sure cure kit". I don't really want to tear into the tranny beyond dropping the pan. I did recently change the fluid with Valvoline high mileage ATF and put in a new filter. If I drop the pan again, I will put on a transmission cooler also.
Any advice?
Thanks!

I have a 94 Ford Bronco with a 351W and an E4OD tranny. I have about 135K miles on it. The tranny shifts very slowly from 2nd to 3rd. Literally, it takes 2-3 seconds for it to finish shifting if I don't let off the accelerator. Shifting from second to third, it will drop a couple hundred RPMs and then about 1-2 seconds later it will drop another couple hundred RPMs and is then in 3rd gear (I hope this makes sense). I realize this tranny is on its way out, but I would like it to hold on awhile longer.
I was cheating on Mud by perusing another forum (gasp!) and someone had a similar problem. One of the suggestions was to drop the pan and put in a new tricumulator and sonnax valve. Anyone here have an opinion on this? I'm not very versed in auto trannies. Will this help? Any E4OD experts here? Links below:
Tricumulator - Tricumulator, E40D / 4R100, spring package *(A36926BK): Bulkpart transmission parts
Sonnax valve - Valve Kit, Accumulator Regulator , E40D: Bulkpart transmission parts
I also found on the same website this:
Sure cure kit - SURE CURE KIT, E4OD 89-UP(SONNAX): Bulkpart transmission parts
Will this accomplish the same thing or is it altogether different. I should mention that it also takes awhile for it to shift into reverse. That's what caught my eye on the "sure cure kit". I don't really want to tear into the tranny beyond dropping the pan. I did recently change the fluid with Valvoline high mileage ATF and put in a new filter. If I drop the pan again, I will put on a transmission cooler also.
Any advice?
Thanks!
