telly98xj

hey guys tranmission proble.
I changed my auto trans and used dextroniii instead ATF+4 not knowing that it had to be the later one
it started to slip on me and I right a way parked it and after a little research i reliazed that i made the wrong choice
is my trany shot or is there something that can be done to save it and how
thanx
below my poor jeep in need of help

Spencer_P

Drain and refill with the correct fluid.

Dave51

Flush and refill with correct fluid.

EZEARL

If it's an AW4 trans Dextron is the correct fluid. Do the above recommendations.

telly98xj

so is it supposed to be ATF+4 ??
and what about the dexron that went in the tourqe converter or

Spencer_P

DexronIII/Mercron.
Do multiple drain and refills to get all of the fluid swapped out of the torque converter.

Dave51

OK so let's back up. Why do you think it's the wrong fluid? Do you have a 4.0 or a 2.5 liter engine?

telly98xj

its a 4.0

lawsoncl

The correct fluid is Dexron per the manufacturer of the trans (not chrysler) Chrysler claims ATF4+ is fine and many people have run it with no issues, but the consensus is that your should stick to DexIII. Check that the cable from the throttle body to the transmission is adjusted correctly. Is it filled properly per the dipstick?

telly98xj

it is to level
i will check the cable though thanx

lawsoncl

Also, when you say slipping, is it maybe trying to start in 4th gear instead of 1st. Does it take-off normally if you put the shifter in (1-2). That's a different issue.

Here's a how-to video on checking the cable.

telly98xj

car runs fine it slips when i am at higher speeds rpm goes hi and transmission catches and releases

telly98xj

around 45 mph it starts acting up between 3rd and 4th

lawsoncl

It's jumping a few hundred rpm, like the torque converter is unlocking and locking? Driving along, can you cause the same effect if you lightly tap the brake with your left foot? If that's the case, the suspects are the switch at the brake pedal, throttle positiion sensor, and possibly the torque converter lockup solenoid in the trans.

rzldzl

could be overdrive solenoid

my wifes 98 wouldnt stay in overdrive at highway speed, changed od solenoid, boom fixed