transmission flush

is it worth it to get a transmission flush on a 1992 van (302) overdrive trans ? someone recomended that to me with a conditioner added. i have a small vibration or rumble or something when i get up to arround 25
mph on a moderate to hard acceleration. checked the universals (1 piece drive shaft) and the rear and axels and they seem fine.the tires seem fine too. thanks.
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I think you need to find out where the problem is before trying random things like transmission flushes.
Jeff
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On Sat, 22 Apr 2006 13:43:35 -0400, "42n8_1"

Why don't you just drain it? It has a plug in the converter. Between draining the converter and removing the pan to replace the filter, you will probably get damn near all the old fluid out instead of having some of the old fluid mixed in. Just pull the plug from the bottom of the bell housing and rotate the engine by hand until the 1/8" pipe plug with the 7/16" head is exposed to drain it.
The vibration you feel may very well be what is commonly called converter shudder. There are additives out there that work well to help cure or control the shudder. One is called Shudderfix. It is usually available at transmission parts houses. NAPA and other well stocked parts outlets may also have it. If your trans is an AODE or 4R70W, you should consider replacing the converter solenoid while you have the pan off with the later modified version to lock the converter quicker thus avoiding shudder. This is an easy replacement. Just make sure you do not overtighten it when you install the new on. Those valve bodies cqn be very sensitive to screws and bolts being too tight. It basically just need to be snug. If you have a low range torque wrench, you need about 100 in/lb. or so. This is about as tight as most folks can get with a screw driver.
Lugnut
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42n8_1 wrote:

================Experience has taught me................
That transmission can be removed, rebuilt, installed, with a warranty for around $1200.
Flushing trannies with moderate to high mileage, often, not always, but often turn a bad situation into an even worse situtation. This is also the case on low mileage units.
A transmission flush runs between $75 to $125, depending on the place doing the service. This money would be better off applied to future tranny repairs. (look at it as a discount coupon)
U-joints should ALWAYS be checked with the driveshaft removed.
Most vibrations and related noises are not the tranny. The tranny usually exhibits other symptoms before reaching this point.
~:~ MarshMonster ~sips his crownroyal and takes a hit off his doooby.....wonders if you wonder how i know this~
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On 22 Apr 2006 12:24:03 -0700, "MarshMonster"

Total BS. Change the fluid regularly for maximum automatic transmission life. Fluid is the lifeblood of the tranny.

the fluid anyway to PREVENT tranny trouble.

***
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clare wrote:

================== Listen here BITCH.............
read my words, not what you THINK you're reading, BEFORE you start calling my post bullshit!!!!!!!!!!!!
If you can't understand what's typed......... go back to school and take an english comp class.
~:~ MarshMonster ~tranny tech~ ~:~
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On 23 Apr 2006 12:10:50 -0700, "Marshal Monster"

Who you callin' bitch ?????? I'm a 53 year old 6'2" 200 lb MALE auto mechanic. Wanna tangle????
Your postulating that fluid changes on automatic transmissions are a waste of money IS pure, unadulterated B.S., and I'll say it to your face.

I understand it well.

I comprehend exactly what you are saying - and it is STILL B.S.

Tranny tech? Sure, like AAMCO and all the other Tranny specialists that would rather sell you a rebuild than properly maintain a tranny., or is it the other kind of "tranny" since you seam to have gender related issues.
***
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my experience with the trans in the 94 van with 302 was that at around 35-40k miles the converter shudder would start. so by doing a trans fluid and filter service every 35k miles,there was no shudder, or it was just starting. the van had 365k miles on it when sold last year, and now has 435k miles on it with the original trans, and the original motor with 3k mile oil changes
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Tom wrote:

==================== good practice, good advice.
~:~ Marsh ~:~
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On 23 Apr 2006 12:12:06 -0700, "Marshal Monster"

Now you are backtracking. When I said changing the fluid was a good idea, and that your saying it was not was B.S, you got all bent out of shape because you thought you were dealing with a girl?
Now all of a sudden it's a good idea?
Which is it??

***
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clare wrote:

========================Listen hear you gray haired 200lb piece of shit..........
READ WHAT I POSTED!!!!!!!!!!!!!!!!!
and put on yer damn glasses........BITCH!!!!!!
and..........use a dictionary.
dipshit,can't read can't comprehend,
FLUSH........
shit head.
FLUSH.....
dipshit.
FLUSH.....
BITCH!!!!!!!!!!!!!
and yeah..... I love looking in the eyes of backwoods fks that can't comprehend the english lanquage and telling em what a GOOBERHEADED, DUMBFK, IGNORANT, B I T C H ! ! ! ! .......I take them for when they can't understand what's being told them.
oh yeah, bitch, it's up there in my original reply.........
tell you what I'm gonna do........ I'm gonna type slower.... c u z y o u c a n ' t r e a d f a s t.
b i t c h
~:~ MARSHMONSTER ~takes a slug of his mushroom tea....reaches down in his baitwell..... and slaps yer bitch ass across the face with a dead mullet~
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Although it's too late for this now but I was reading an article about replacing the transmission fluids as soon as possible after break-in and it's logical when it's posible so many issues could potentially be avoided.
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thanks for the info think i will go with lugnuts advice

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big E350 with 351 engine I believe and the c-6 trans that had the shudder problem. The fix is buying the inexpensive part and intalling it in just a few minutes. The Shop did mine but said the fix was simple.
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On Sun, 23 Apr 2006 11:25:36 -0400, "Kwazy Wabbit"

Your '94 350 had an E4OD if it had a shudder. C6 was 3 speed non lock trans thus, no converter shudder possible. The E4OD did/does have shudder problems from time to time. The AOD(E)/4R70W was not used behind the 351 engine.
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