?????Downhill no hold back 4wd lowrange?????

[markusedma]

Also make sure the tranny is not low on fluid, if the hill is steep and the level is low it will cause it to suck air and you will lose braking. (I have this happen on my field beater when the level gets low from all the leaks lol.)

[jtgh]

hope you find it , cheap and easy.

cheers.


my xfr cas in 4L , is 1.82:1 , almost 2 times the reduction, it is profound what I can do in that gear.

[jtgh]

OMG, the level is check 1.

and color, and smell.
as is doing a full power flush $100 with new filter.
job 1 ,every time any AT messes up.

its here, in my list of IN CAR AT FIXES

Slush pump diagnosis

YOU WONT FInd this at AAMCO , no way. just a big fat bill.

[jtgh]

and on a pub. folder here


autotransdiagnosis-3L30.pdf | FreeDrive.com | Online Storage and Social Utility

here is the 3sp diagnostic, manual. what more do you need?

31 pages.

click blue arrow, silly but that is key to download here.

[John TN]

Originally Posted by jtgh

and on a pub. folder here


autotransdiagnosis-3L30.pdf | FreeDrive.com | Online Storage and Social Utility

here is the 3sp diagnostic, manual. what more do you need?

31 pages.

click blue arrow, silly but that is key to download here.

Thanks for all the info, lots to be done and checked, fluid as said is number 1, filter and fluid change next on the growing list of things to do. Got the download jtgh time to study and learn, hopefully I'll be able to work on it some this week.

I can say for sure it's going in 4wd low range, checked that today, anyone know if it's a must to shift the tranny into 1st gear for hold back or would hold back occur in D as well? Until I check the shift adjustment I'm still not certain it's going into manually shifted 1st gear. I will follow up with info on what I find.

[John TN]

jtgh the auto tranny diagnosis manual says this for no hold back in 2 or 1 manual shifted.

No Engine Braking In Low
Check select cable adjustment and/or stuck manual low control
valve.
No Engine Braking In "2" Range
Check select cable adjustment.

[jtgh]

thanks, i do not know all the rules for that.
kinda makes it useless for engine braking. really.

i wonder if 4sp can brake in 3, and 2, as many cars do.

first is just to prevent non gear oriented folks from messing up.
on some trannies, it just ignores you if going too fast.

I do have the driven and underdriven maps for the out.
it is there too, on the full rpm/load maps.

cheers.

[CodyJ]

If I had a 3-speed 4wd i'd reply with test back... but my auto pulls hard in first to about 20.

I am sure it wont engine brake less than that speed even in low much... only if in 4wd low and if it stays in 1st.

[-Lawless]

Easiest way to make sure it is in 1st gear (manually) is to drive it. If it shifts to second then obviously it's not in 1st gear.
My guess is it will not engine brake in "D" but only in 1st as most cars do.

[aquanaut20]

Do know if this is little help

Have a 99 Tracker with 3sp slush box+OD, it will engine brake(compression) in manual 1 an 2 in both 2wd and 4x4, it will also engine break at hiway speed by disengaging OD.

Love this truck, out paces the 97 Ford Explorer controltrack (Rescue 1st Response) I drive all week.