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View Full Version : Do you change your transmission fluid?


Demonpenz
04-04-2007, 02:44 PM
car thread for you guys/

Redrum_69
04-04-2007, 02:46 PM
only when pieces of metal are found in it

Baconeater
04-04-2007, 02:47 PM
Hell no, I'm fairly certain all that sludge is the only thing keeping it going.

Demonpenz
04-04-2007, 02:49 PM
changing trasmission fluid is like ****ing red rums mom. Guy comes out with a dipstick says it might be a good idea to try it. It takes 10 minutes longer than what it should then on your way home you start getting a burning sensation on your undercarriage

elvomito
04-04-2007, 02:51 PM
Hell no, I'm fairly certain all that sludge is the only thing keeping it going.thats absolutely true. leave it alone

HemiEd
04-04-2007, 02:53 PM
I do it on alternating 30k intervals. The other times I have the shop do the flush thing, pretty expensive.
I am not totally sold on the flush, because the dirty filter remains in the car. However, by dropping the pan and changing the fluid, you are not changing the fluid in the torque converter. Some converters have a drain plug, but most do not.

Frazod
04-04-2007, 03:44 PM
I've owned four different vehicles in the past five years. I basically don't keep a car long enough for the fluid to need changing.

HemiEd
04-04-2007, 03:48 PM
I've owned four different vehicles in the past five years. I basically don't keep a car long enough for the fluid to need changing.

yep, I have heard about you people from Naperville . :p

Fruit Ninja
04-04-2007, 03:50 PM
I changed it once on my old school Caddilac. HUGE HUGE mistake. Transmission gave out about a month later. Started slowly, then i couldnt go in reverse. The car was never the same after. Well, that and i wrecked it :(

Sully
04-04-2007, 03:53 PM
So, this seems a decent place to ask a transmission question. Keep in mind, I don't know a damn thing about cars.

My truck seems to be getting into some transmission issues. I'm getting the whole kick when I first get on the gas (a pause, then the trans kicks in suddenly), as well as what feels like the gears doing weird things while driving.

Any ideas what it is, and if there is anything I can do other than wait for it to die?

stlchiefs
04-04-2007, 03:56 PM
I was always told by a mechanic friend of the family never to change tranny fluid. He said it is good to go and once you start messing w/ that things go wrong (see kcxiv's post above). I have a 1994 Jeep G. Cherokee w/ 130k miles on it and didn't replace it until I had to have my tranny rebuilt 10k miles ago.

Phobia
04-04-2007, 03:56 PM
Do NOT wait for it to die. Then you'll be in for a huge bill. Chances are, if you catch it early, it could be a much cheaper fix.

Unless that transmission has beaucoup miles on it and the truck isn't worth much anyway. In that case, drive it until it dies and replace the entire rig.

Fish
04-04-2007, 03:56 PM
So, this seems a decent place to ask a transmission question. Keep in mind, I don't know a damn thing about cars.

My truck seems to be getting into some transmission issues. I'm getting the whole kick when I first get on the gas (a pause, then the trans kicks in suddenly), as well as what feels like the gears doing weird things while driving.

Any ideas what it is, and if there is anything I can do other than wait for it to die?

Put out a bowl of antifreeze?.... err.... tranny fluid?

stlchiefs
04-04-2007, 04:04 PM
Do NOT wait for it to die. Then you'll be in for a huge bill. Chances are, if you catch it early, it could be a much cheaper fix.

Unless that transmission has beaucoup miles on it and the truck isn't worth much anyway. In that case, drive it until it dies and replace the entire rig.

I was told this same thing by a trusted mechanic that I used. My tranny was going out in STL and he was in STL. I raised the possibility of driving back to KC to have him do the work as I trusted him and his price was a lot less. He said it wasn't worth it because if you wait for it to lock up it will end up screwing even more chit up. As it is now you'll most likely find they recommend you have it rebuilt for $800-$1800.

HemiEd
04-04-2007, 04:08 PM
I was always told by a mechanic friend of the family never to change tranny fluid..He said it is good to go and once you start messing w/ that things go wrong (see kcxiv's post above). I have heard that same bullshit a "hunderd times."
Here is the deal, IMO. If you let one go to the point of total neglect (100k). You probably should leave it alone, because all of the metal filings in the fluid, are actually helping the clutches and bands catch. Changing the fluid removes this crap from the system.
I have a 1994 Jeep G. Cherokee w/ 130k miles on it and didn't replace it until I had to have my tranny rebuilt 10k miles ago.
People have ignored changing trans fluid for years. The valve body works better with clean fluid but they will go a long time without a change. I have a habit up pulling the trans dip stick and smelling it, burnt fluid actually smells burnt. I used to change the fluid in my drag car every other weekend.

Fruit Ninja
04-04-2007, 04:11 PM
Do NOT wait for it to die. Then you'll be in for a huge bill. Chances are, if you catch it early, it could be a much cheaper fix.

Unless that transmission has beaucoup miles on it and the truck isn't worth much anyway. In that case, drive it until it dies and replace the entire rig.I went to the Junk Yard n got one from there. Though, i wrecked because of the weather about a month later. So eh.

stlchiefs
04-04-2007, 04:12 PM
Did you return the tranny to the junk yard?

Cochise
04-04-2007, 04:19 PM
I've never had it done and never had to replace a transmission. :shrug:

HemiEd
04-04-2007, 05:43 PM
I've never had it done and never had to replace a transmission. :shrug:

I think a lot of people can say that. How many miles do you usually put on a car?

Changing the fluid probably is a bad investment, for most people. The next owner of my cars gets the benefit. 3,000 mile oil changes and 30,000 mile ATF changes.

keg in kc
04-04-2007, 05:49 PM
Did you return the tranny to the junk yard?

This is definitely not a conversation I want to be in the middle of.


NTTAWWT

HemiEd
04-04-2007, 05:52 PM
This is definitely not a conversation I want to be in the middle of.


NTTAWWT


Damn you got to be a twisted ****er to turn this into that! ROFL

keg in kc
04-04-2007, 06:01 PM
That pretty much sums me up.

Demonpenz
04-04-2007, 06:08 PM
Yeah I own a Mitsubishi lancer and it said I should change it after 30000 miles then i saw how much it was and figure that I got ripped off. So I guess easy come easy go. I just got a bonus at work and prompty spent it on my car. Oh well I guess I can keep it until my midlife crisis

Cochise
04-04-2007, 06:10 PM
I think a lot of people can say that. How many miles do you usually put on a car?

Changing the fluid probably is a bad investment, for most people. The next owner of my cars gets the benefit. 3,000 mile oil changes and 30,000 mile ATF changes.

100k on the last one and about 80k on the one before that. Both of them were new to begin with. :hmmm:

Road Hog
04-04-2007, 06:57 PM
I transmit my fluid every chance I get. I always try to make sure she's up to it.

dtebbe
04-04-2007, 07:00 PM
I do it on alternating 30k intervals. The other times I have the shop do the flush thing, pretty expensive.
I am not totally sold on the flush, because the dirty filter remains in the car. However, by dropping the pan and changing the fluid, you are not changing the fluid in the torque converter. Some converters have a drain plug, but most do not.

A good shop will change the filter before the flush it. I usually have that done every 60k. Mercedes and BMW use very expensive synthetic fluid that is considered "lifetime" fluid. The shop next door to me still suggests replacing that at 100k. Even with synthetic fluid they charge under $200 for the flush. I also change ALL the fluids when I buy a used car. That way I KNOW exactly what has been done to the car, and get get on a good schedule from there.

DT

HemiEd
04-04-2007, 07:24 PM
100k on the last one and about 80k on the one before that. Both of them were new to begin with. :hmmm:

I have probably been wasting money all these years, I usually don't keep them past 70k or so.

This is a totally different perspective for me, they are just machines to be consumed. I have always looked at it as, what is best for the car. Stupid, I would have a lot more in my pocket!

Never been stranded though, but close.

HemiEd
04-04-2007, 07:35 PM
A good shop will change the filter before the flush it. I usually have that done every 60k. Mercedes and BMW use very expensive synthetic fluid that is considered "lifetime" fluid. The shop next door to me still suggests replacing that at 100k. Even with synthetic fluid they charge under $200 for the flush. I also change ALL the fluids when I buy a used car. That way I KNOW exactly what has been done to the car, and get get on a good schedule from there.

DT


I have never been in the doors of a Beemer shop, but the several Chrysler shops I use do not do both. (change filter and flush)

In fact, the bigger dealerships only flush now, $180.

But we are talking apples to oranges here. I was reading my bosses BMW owners manual while riding to a sales call. (several years ago, 533)

They recommend pulling the transmission for inspection as a regular service interval. That is a whole different ball game there.

beavis
04-04-2007, 07:51 PM
So, this seems a decent place to ask a transmission question. Keep in mind, I don't know a damn thing about cars.

My truck seems to be getting into some transmission issues. I'm getting the whole kick when I first get on the gas (a pause, then the trans kicks in suddenly), as well as what feels like the gears doing weird things while driving.

Any ideas what it is, and if there is anything I can do other than wait for it to die?
You bought a Ford too huh? Wait for it to die, that's what I'm doing.

greg63
04-04-2007, 07:54 PM
Nope, I pay someone an arm and a leg to have the lines flushed and the fluid replaced. :banghead:

Extra Point
04-04-2007, 10:47 PM
Every 70,000 miles, drop the pan, change the inlet filter, wipe the sludge off the magnet and what's in the pan, and top off the fluid. Of course, you're only going to drain 1/2 of what's in the entire unit, but the $65 you spend on the fluid, filter, gasket & gasket sealant will keep you from spending $2000 on having someone else overhaul your transmission.

If you don't want to do it yourself, call Angels on Merriam Dr. Absolutely the best shop in town, even if you have to bite the bullet and have yours remanufactured.

As a rite of passage, my 16 yr old son and I went to the autoparts store for the first time this past weekend, and he cut the check for the drums, wheel cylinders & shoes, the ATF fluid & filter/gasket kit, the oil & oil filter, and the inlet air filter. We did the work together, and he understood the why and the how of it. A blip in the curve of life, but one to get into.

PastorMikH
04-04-2007, 11:01 PM
I do my own, but I do more than just drop the pan and change the filter. After the pan drop and filter replacement, I pull the transmission line going to the radiator at the radiator. I put that end in a 5 gal bucket. Now, pour about 3-4 quarts of transmission fluid in then start the engine. The transmission pump will circulate the new fluid. I keep adding fluid until the fluid coming out of the line is nice and clean looking. Then I shut the motor off, re-attach the line, and fill to the line.

This way I circulate all the old fluid out. I'll use a full case of tranny fluid but I figure it's worth it. I've also at times, when I can find it, put some B&G Transmission cleaner in and drive it a bit before changing. This really cleans stuff out.

ChiefaRoo
04-04-2007, 11:03 PM
I do it when the power steering starts to whine when the wheels are turned all the way one direction or the other. If it gets real bad it'll make a grinding sound in very cold weather when you start the engine cold (at least that's how it sounds with my trusty Intrepid). I've only changed mine once in 9 years.

Never mind I'm talking about power steering fluid. oops

Kerberos
04-05-2007, 07:06 AM
With 226,000 miles on the Suburban with the OEM transmission in it I can tell you that AFTER 100,000 miles it is a good idea to change it every 15,000 miles or once a year whichever comes first.

I use Amsoil Synthetic Transmission fluid and you can FEEL the difference when it shifts. It is quicker and more crisp than with standard fluid.

my .02

Skip Towne
04-05-2007, 07:16 AM
I do my own, but I do more than just drop the pan and change the filter. After the pan drop and filter replacement, I pull the transmission line going to the radiator at the radiator. I put that end in a 5 gal bucket. Now, pour about 3-4 quarts of transmission fluid in then start the engine. The transmission pump will circulate the new fluid. I keep adding fluid until the fluid coming out of the line is nice and clean looking. Then I shut the motor off, re-attach the line, and fill to the line.

This way I circulate all the old fluid out. I'll use a full case of tranny fluid but I figure it's worth it. I've also at times, when I can find it, put some B&G Transmission cleaner in and drive it a bit before changing. This really cleans stuff out.
I can't find that BG trans conditioner any more. It is great stuff but the parts store guy said they took it off the market. It was in a brown and yellow can IIRC.

El Jefe
04-05-2007, 07:42 AM
HemiEd, is definetely the most knowledgeable on transmissions in this thread. Not changing your trans fluid is stupid and if you do it right it is not going to hurt it. I should know this is my occupation. But any mechanic who says dont change your fluid must not know anything about transmissions

HemiEd
04-05-2007, 07:59 AM
I can't find that BG trans conditioner any more. It is great stuff but the parts store guy said they took it off the market. It was in a brown and yellow can IIRC.

Haha, it is a Kansas product and they arn't letting you Okies have any! :p

PastorMikH
04-05-2007, 08:48 AM
I can't find that BG trans conditioner any more. It is great stuff but the parts store guy said they took it off the market. It was in a brown and yellow can IIRC.



Great stuff/poor Sales Rep service. At the shop my dad works at as well as the locals I was getting it at, they all say the same thing - We love the stuff but we never see a sales rep to restock us. Everyone I have talked to says its the best around, problem is they can't get it.

PastorMikH
04-05-2007, 08:51 AM
I have probably been wasting money all these years, I usually don't keep them past 70k or so.




Yeah, I never wanted to keep a dodge much past the warranty expiration either.

:p

HemiEd
04-05-2007, 09:15 AM
Yeah, I never wanted to keep a dodge much past the warranty expiration either.

:p


LMAO, the one Dodge you have owned?

All kidding aside though, I like your idea on removing one line. It is very similar probably to what happens when they flush it.

KC Kings
04-05-2007, 09:28 AM
I was told this same thing by a trusted mechanic that I used. My tranny was going out in STL and he was in STL. I raised the possibility of driving back to KC to have him do the work as I trusted him and his price was a lot less. He said it wasn't worth it because if you wait for it to lock up it will end up screwing even more chit up. As it is now you'll most likely find they recommend you have it rebuilt for $800-$1800.
It really depends on the vehicle. My Escort with 75K miles lost 4th gear, then 1st gear, all in about 20 minutes of driving. A couple places said they would "fix" it for $750. Their fix was replacing the bands. Since fourth gear went first and a lost another gear later, multiple mechanics told me that there was probably debris from the first gear in the fluid that caused the secondary damage. I could spend $750 for the in house mechanic to replace the bands, change the fluid, hope they got all of the debris out of there, and then send me on my way with no warantee. Or I could spend around $2k for the tranny to be replaced with a factory certified remanufactured tranny with a 5 year warantee. It ended up costing $2200, which took a little while to justify putting into a 99 Escort, but since it runs great, only has 75,000 miles, and $2200 isn't even 6 months worth of a new car payment, I got it done.

For the guy with the truck problem, when you hit the gas does the motor rev up a little bit then the tranny catches and you start moving? If so it sounds like the tranny is slipping, which could be as easy as being low on tranny fluid. My Dad has an old Ford with a bad rear seal, and it goes through tranny fluid pretty good. At the end of a trip you end up having to drive it like a manual, using the brake as clutch until the tranny starts to catch. It's a pain, but it is nice to have an old beater truck around whenever you need one.

burt
04-05-2007, 10:19 AM
My transmission has fluid??????

Stewie
04-05-2007, 10:22 AM
A friend of mine has an S-10 pickup that needed an new engine after 10K miles. He was so pissed about the whole deal he never changes the engine oil (only adds oil when needed). Last count it had 110K and still going. Amazing. Of course, motor oil has come a long way in the past 15 years.

HemiEd
04-05-2007, 11:12 AM
A friend of mine has an S-10 pickup that needed an new engine after 10K miles. He was so pissed about the whole deal he never changes the engine oil (only adds oil when needed). Last count it had 110K and still going. Amazing. Of course, motor oil has come a long way in the past 15 years.

I had an eccentric Brother In Law that did that with Cadillac's. He did not believe in servicing them, when they acted up he would buy a new one. He didn't live long enough to ruin very many of them.

PastorMikH
04-05-2007, 11:23 AM
LMAO, the one Dodge you have owned?

All kidding aside though, I like your idea on removing one line. It is very similar probably to what happens when they flush it.


It is. Dad's shop had the B&G machine and that is where they hooked it into the transmission to circulate the fluid through. That's where we got the idea.


As for the Dodges, the wife had a Dodge Colt when we got married that the cam siezed on at 75k. We had a Dodge Caravan that I spend more time working on it than driving it. I also had a Dodge Dakota that I got rid of at 45k due to a lot of work I had to do to it after the 36k waranty expired. I've had 3, I won't have 4.:)

PastorMikH
04-05-2007, 11:24 AM
I had an eccentric Brother In Law that did that with Cadillac's. He did not believe in servicing them, when they acted up he would buy a new one. He didn't live long enough to ruin very many of them.


I don't think I've ever met a caddy owner that actually worked on their own car.