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