4R100 Question
#1
4R100 Question
I have a 99 Expy, with the 5.4l and the 4R100 (AOD), and is 4WD. I believe the tranny is 4 speed? and I am having a weird shutter when it shifts between 3rd and 4th gear. Of course, now as I am typing this, I wonder if it is when it shift into over drive... Anyways, the shutter lasts about 2 or 3 seconds, and sound like you are driving over the center divide reflectors (if they were spaced about a foot apart). Any thoughts? Once it is ion gear it is fine, and everything else shifts smooth and seems fine.
#2
It needs a complete trans fluid change. Either take it somewhere that can do a trans flush, or do it yourself with these instructions:
http://www.ford-trucks.com/article/i...nsmission.html
http://www.ford-trucks.com/article/i...nsmission.html
#3
#4
You may not have to take it to a shop.
My 97 4.6 with the same transmission started
to do the SAME THING after I bought it with
82K miles.
I could actually get it to shutter under light throttle
up a small incline 1 second shutter 4 sec fine 1 sec
shutter and so on as the od was shifting on and off.
I made the mistake of going to ford for
a flush and filter change using MERCON V.
What they did I could do at home in 20 minutes.
Drop the pan
change filter screen.
seal up pan.
add 6 quarts Valvoline MAXLIFE.
charge me $129 +T
However, it was enough to add enough Mer V
to fix the problem completely as the new friction
modifiers did their job.
In the spring I will add another 6 quarts.
You must change fluid EVERY 30k mi, 15K if
you tow. Use ONLY MER V.
.
My 97 4.6 with the same transmission started
to do the SAME THING after I bought it with
82K miles.
I could actually get it to shutter under light throttle
up a small incline 1 second shutter 4 sec fine 1 sec
shutter and so on as the od was shifting on and off.
I made the mistake of going to ford for
a flush and filter change using MERCON V.
What they did I could do at home in 20 minutes.
Drop the pan
change filter screen.
seal up pan.
add 6 quarts Valvoline MAXLIFE.
charge me $129 +T
However, it was enough to add enough Mer V
to fix the problem completely as the new friction
modifiers did their job.
In the spring I will add another 6 quarts.
You must change fluid EVERY 30k mi, 15K if
you tow. Use ONLY MER V.
.
#6
Originally Posted by Mark Kovalsky
Read my post above. There is a procedure to change all of the fluid at home just like the shops with the machine.
a pull of the fluid up the dipstick with an evacuator can be
done in no time with no removal of the pan. Even though I won't have
a complete flush more and more new fluid will be added.
I think once it warms up It may be time to do the
whole job plus the Transfer Case and the rear end.
#7
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#11
Originally Posted by jaylariatf150
your transmission isnt suddering when it shifts into overdrive its your lock up torque converter just add a tube of anti shudder and your problem should go away if your oil is red dont change it.
When cruising at 50-60 70...you get the picture..... If I add a little throttle I get a vibe that I can feel in the gas pedal.
Also...now that its colder out, it takes a while to shift to 3rd 4th at low speeds ie. city driving.
Do I also need a tube O anti shudder? Is this found at NAPA or Autozone?
Thanks for any info...
#12
Originally Posted by MPBTim
When cruising at 50-60 70...you get the picture..... If I add a little throttle I get a vibe that I can feel in the gas pedal.
Originally Posted by MPBTim
Also...now that its colder out, it takes a while to shift to 3rd 4th at low speeds ie. city driving.
Originally Posted by MPBTim
Do I also need a tube O anti shudder?
#13