AW4

[1eliminator1]

For some reason my trans wants to randomly come out of overdrive when I am driving down the road. It doesn't do it as much when I slowly accelerate at around 55mph, but when I maintain 55mph it was to pop back into 3rd for about half a second and then right back. It isn't consistent either. Has anyone else had problems like this?

[HOrnbrod]

Try adjusting the Throttle Valve cable (commonly called the kickdown cable) at the throttle body. If maladjusted it will cause your AW4 shifting points to be all over the place. Takes no tools and about five minutes to do.

 

 

1: Push in and hold the release button

2: While holding in release button, push "conduit" in as far as it will go

3: Release button

4: Rotate throttle to WOT, some people do this with the gas pedal. Others do it from the engine compartment.

5: Hold at WOT for a few seconds, cable should ratchet out a click or two.

6: Your TV cable should now be properly adjusted. :cheers:

[1eliminator1]

alright, will do thanks

[1eliminator1]

I tried and it didnt help

[cruiser54]

Do you have the trans switch in the Comfort mode?

[1eliminator1]

I have tried both power and comfort mode. It does the same thing

[cruiser54]

I have tried both power and comfort mode. It does the same thing

 

Does the switch light up in the Power mode? Is the 7.5 amp "trans" fuse blown in the fusebox?

[1eliminator1]

The fuse isnt blown and the light lights up

[cruiser54]

Got reverse lights?

[NotMatt]

Check the brake light switch on the brake pedal. It's not only a light switch, but it also unlocks the torque converter when you step on the brakes. If it's slightly out of adjustment, it will behave like that on the road... plus your brake lights will be coming on randomly too.

[1eliminator1]

I have checked it but I will check it again. My problem doesn't release the torque converter, it downshifts. When i drive at 55 and tap the brake it only goes to around 1900rpm. My problem goes to around 2100 or 2200rpm

[Kona]

TCU? Check voltage on the TPS.

[HOrnbrod]

Check the brake light switch on the brake pedal. It's not only a light switch, but it also unlocks the torque converter when you step on the brakes. If it's slightly out of adjustment, it will behave like that on the road... plus your brake lights will be coming on randomly too.

That's only for the HOs.

 

There are three solenoids in the AW4; one is for TC lockup. This solenoid sounds like it's cutting in and out causing the TC to lock and unlock randomly. First thing you should do is check the solenoid resistance with an ohmmeter. This can be done w/o pulling the tranny pan by disconnecting the cable that runs from the TCU to the AW4 behind the engine; it's a white connector. Shoot me a PM and I'll send you the AW4 manual that shows the pinouts.