david

Hi all, My '94 S-10 blazer 4X4 is my first 4X4, I don't have previous
records on it, but it appears to have been well maintained. It currently
has 145K on the clock and came from a major company where it was a company
vehicle.

My tranny fluid + filter was just changed because of burned smell. When
should I take it in for another one, they only swaped out about 20-30% to
reduce the possibility of major damage. Also what fluid goes in the front
and transfer cases and at what interval. I plan on using all synthetic BTW.
Would it be ok to have my tranny fluid changes filled with syn or should I
stick with dino until all the old fluid is out of there? When should I
change the rear axle and weight.Will the front and rear axles be identicle
in procedure and weight?

Not having old service records, I'm planning on slowly and surely changing
all through the summer.It's kinda embarrasing having to ask this, but I've
never had the $$$ to afford one before, so I never learned anything about
them.

David

brianorion

proper maintenance

Group: alt.autos.4x4.chevy-trucks Date: Sat, Feb 28, 2004, 3:08am
(PST+8) From: NOSPAM@MYINBOX (David)
Hi all, My '94 S-10 blazer 4X4 is my first 4X4, I don't have previous
records on it, but it appears to have been well maintained. It currently
has 145K on the clock and came from a major company where it was a
company vehicle.
My tranny fluid + filter was just changed because of burned smell. When
should I take it in for another one, they only swaped out about 20-30%
to reduce the possibility of major damage. Also what fluid goes in the
front and transfer cases and at what interval. I plan on using all
synthetic BTW. Would it be ok to have my tranny fluid changes filled
with syn or should I stick with dino until all the old fluid is out of
there? When should I change the rear axle and weight.Will the front and
rear axles be identicle in procedure and weight?
Not having old service records, I'm planning on slowly and surely
changing all through the summer.It's kinda embarrasing having to ask
this, but I've never had the $$$ to afford one before, so I never
learned anything about them.
David
_____________________________________

David,Don't get your hopes up too high on a transmission with "burned
smell".A burned smell to the fluid signifies serious damage to the
friction material in the trans.Replacing all the fluid will often cause
total failure because the new fluid will be more viscous,and may allow
the burned clutches/bands to slip.Once they start slipping it's a
goner.I worked for that large national chain and we would NEVER change
the fluid on a car with "burned smell" to the fluid.We would recommend
an inspection.Actually we knew all along that the tranny was bad once it
reached that point.If the fluid has a real bad burned smell and is no
longer reddish but brown in color,start looking for a rebuilt
tranny.Incidentally,did they find lots of metal and/or friction material
in the pan ?

\doc\

Dave ignore the above advice, it's bullshit. A burned smell just means the
fluid is old and expired, and doesn't equate torched AT internals.
Replacing the fluid is the BEST thing you can do when the old stuff is
cooked to prevent damage. Drop the pan and check for metal chunks/shards,
replace the filter, clean the pan till it's SURGICALLY clean, then refill
and be on your way.

Repeat the above two more times at 500 mile intervals to get all the old
stuff out. When I bought my current truck it had 107k miles and the ATF was
brown and smelt like a skunk; still shifted fine. Flushed it out using the
above described procedures to get rid of all the old stuff, and now change
every 15k. It has 160k on the clock now (2 years later, I drive alot) and
still shifts perfectly. Doc

transsurgeon

'that large national chain '.......'would recommend an
inspection'............................

would that be 'AAMCO' a.k.a. 'All Automatics Must Come Out' ????

brianorion

Re: proper maintenance

Group: alt.autos.4x4.chevy-trucks Date: Sun, Feb 29, 2004, 3:31am
(PST+8) From: nobulltrans@mchsi.com (TransSurgeon)


"Brian Orion" <brianorion@webtv.net> wrote in message
news:25996-40413FD0-99@storefull-3238.bay.webtv.net...
proper maintenance
Group: alt.autos.4x4.chevy-trucks Date: Sat, Feb 28, 2004, 3:08am
(PST+8) From: NOSPAM@MYINBOX (David)
Hi all, My '94 S-10 blazer 4X4 is my first 4X4, I don't have previous
records on it, but it appears to have been well maintained. It currently
has 145K on the clock and came from a major company where it was a
company vehicle.
My tranny fluid + filter was just changed because of burned smell. When
should I take it in for another one, they only swaped out about 20-30%
to reduce the possibility of major damage. Also what fluid goes in the
front and transfer cases and at what interval. I plan on using all
synthetic BTW. Would it be ok to have my tranny fluid changes filled
with syn or should I stick with dino until all the old fluid is out of
there? When should I change the rear axle and weight.Will the front and
rear axles be identicle in procedure and weight? Not having old service
records, I'm planning on slowly and surely changing all through the
summer.It's kinda embarrasing having to ask this, but I've never had the
$$$ to afford one before, so I never learned anything about them.
David
_____________________________________
**David,Don't get your hopes up too high on a transmission with
"burned smell".A burned smell to the fluid signifies serious damage to
the friction material in the trans.Replacing all the fluid will often
cause total failure because the new fluid will be more viscous,and may
allow the burned clutches/bands to slip.Once they start slipping it's a
goner.I worked for that large national chain and we would NEVER change
the fluid on a car with "burned smell" to the fluid.We would recommend
an inspection.Actually we knew all along that the tranny was bad once it
reached that point.If the fluid has a real bad burned smell and is no
longer reddish but brown in color,start looking for a rebuilt
tranny.Incidentally,did they find lots of metal and/or friction material
in the pan ?
Dave ignore the above advice, it's bullshit. A burned smell just means
the fluid is old and expired, and doesn't equate torched AT internals.
Replacing the fluid is the BEST thing you can do when the old stuff is
cooked to prevent damage. Drop the pan and check for metal
chunks/shards, replace the filter, clean the pan till it's SURGICALLY
clean, then refill and be on your way.
Repeat the above two more times at 500 mile intervals to get all the old
stuff out. When I bought my current truck it had 107k miles and the ATF
was brown and smelt like a skunk; still shifted fine. Flushed it out
using the above described procedures to get rid of all the old stuff,
and now change every 15k. It has 160k on the clock now (2 years later, I
drive alot) and still shifts perfectly.
'that large national chain '.......'would recommend an
inspection'............................
would that be 'AAMCO' a.k.a. 'All Automatics Must Come Out' ????
_____________________________________
Hey,all I said was not to get his hopes up too high.
You were lucky,I,ve seen 5,000 others not so fortunate.
By the way,ATF dosn't burn in a transmission.That smell is fried
friction material. Fried clutches and bands just don't seem to last too
long,plus there is often a separate malfuntion,ie.slow shift,etc. that
will finish the job so I warned him that's all.
,

nospam

Hey that's funny? Can I use that?

I hate AAMCO, I was getting very hard shifts in my 1994 Chevy Z34 and a
whining noise out of the transmission. I stopped by an AAMCO on the way home
from work to get an idea of the problem. Well their professional opinion
(from the outside inspection) was I needed one of their off the shelf
transmissions. Only $1799.99 plus tax.
I said see ya later NOT. Took the car to the Chevy dealer that I bought it
from and they found a vacuum leak at the ac***ulator piston. Cost me $69.00
as that's the minimum they charge to look at a car.

Brian
(Momma didn't raise no fool)

david

Incidentally,did they find lots of metal and/or friction material


I forgot to ask and this idiotic national chain (which I won't go back to)
didn't tell me. I could kick myself for not asking, I was so furious at the
long wait time. I was told about 45 minutes with a 3:00 appt time.
My truck didn't go in the shop until 4:20, then it was in the shop for 2.5
hours. their heater was an air conditioner turned to heat (Buffalo, NY
early February, 20 outside), no coffee machine, no pop machine, 12"tv on
PBS, no bathrooms, Women's magazines only.

BTW, fluid was still reddish color, not real burnt smell. Also they only
changed about 20-30% of the fluid, to help combat tranny failure.

david

plus there is often a separate malfuntion,ie.slow shift,etc. that


Well, my tranny has no problems shifting or anything like that. I'm not at
all concerned about it, never had a tranny fail, and I was raised on
old,beat cars. My parents haven't bought a new car since before I was born.
I don't even remember my father ever doing maintanence to them! LOL

brianorion

Sounds good David