Auto confusion

[NissanGQ4.2]

Very rare for the computer to play up, unless you do a fair bit of river crossings.

But anything is possible, will be interesting 2 hear the outcome of this one

[saw13]

Hey Saw13, Can you describe the symptoms? I have been having a lot of isssues with my auto too. Check out this thread http://www.nissanpatrol.com.au/forum...ox-Electricals

Also theres a bit more info in my members ride thread: http://www.nissanpatrol.com.au/forum...ucas-s-TB42-Ti

It just goes through the gears like 1st 2nd D in like 20-30 meters from a stand still, activate the HOLD button nd its suppose to start of in 2nd but starts off in 1st nd goes through the gears, POWER light on the button comes on when u disable O/Drive, ahhh its just a mess nd no body seems to know anything about these g/boxs nd electrics lol

[taslucas]

It just goes through the gears like 1st 2nd D in like 20-30 meters from a stand still, activate the HOLD button nd its suppose to start of in 2nd but starts off in 1st nd goes through the gears, POWER light on the button comes on when u disable O/Drive, ahhh its just a mess nd no body seems to know anything about these g/boxs nd electrics lol

Mine was changing gears quicker than it should (although I didn't know it) and it was because it had NO tps fitted.

tappin it

[NissanGQ4.2]

ahhh its just a mess nd no body seems to know anything about these g/boxs nd electrics lol

yep, try doing this: http://www.nissanpatrol.com.au/forum...earbox+rebuild

Thats what you call a mess!!!!! *L*

[saw13]

yep, try doing this: http://www.nissanpatrol.com.au/forum...earbox+rebuild

Thats what you call a mess!!!!! *L*

Holy dam, that was a mess!!!!!
i take it back mate lol,
ill just say mines just a bit of a struggle hahaha

[saw13]

Very rare for the computer to play up, unless you do a fair bit of river crossings.

But anything is possible, will be interesting 2 hear the outcome of this one

Well there we have it, was just out at a mates place thought we would try his auto comp in mine, his trol changes gears spot on, so threw it in to mine nd still no difference,
so the comps are perfectly fine lol

[NissanGQ4.2]

Well there we have it, was just out at a mates place thought we would try his auto comp in mine, his trol changes gears spot on, so threw it in to mine nd still no difference,
so the comps are perfectly fine lol

Have you done any diagnostic fault testing yourself???

Do you have access to the AT section in the GQ manual??? This clearly explains how to test each of the components.

[Ade]

Mine was changing gears quicker than it should (although I didn't know it) and it was because it had NO tps fitted.

tappin it

Yup..agreed with ya mate. Thats what happened on mine too (TD42), I was once disconnected my faulty TPS and drove her like a manual..on D range it was changing gears very very quickly without the TPS. Now its all good with 2nd hand TPS.

[saw13]

Have you done any diagnostic fault testing yourself???

Do you have access to the AT section in the GQ manual??? This clearly explains how to test each of the components.

Yeah i tried this the other day, nd once again just then, light comes on for two seconds then flashes 16x which is suppose to be normal as it does its own sys check, but i still go through the
diagnosis instructions nd nothing happen lol,
As soon as you turn your key on, does the light come on for two secs then flash 16x ??

[Ade]

Now I remember one thing!

1 gears change really quickly (really quickly) unless putting foot down a fair bit, feels a little gutless nd feels like it doesnt grab gears properly,

3 POWER switch light comes on when turning off O/Drive, visa versa, even when the HOLD switch is active (is that suppose to?)

This is the first issue that I had with my auto..similar to yours mate. I dont have the hold button though, just the power/od button. So, I just disconnected the TPS (solved the #3) and drove it like a manual (#1)..until I got the 2nd hand unit from a wrecker and its all good. But still..I was like adjusting the TPS more than 7 times to have it change gears at correct speeds. As for the gutless feels and doesn't grab the gear properly, I sorted these issue after the box been rebuild and a Nomad Valve Body from Wholesale Automatic Transmission was fitted.

The only issue I got left now is the fluid temperature, manageable though. Rodney of W.A.T told me that I should get a hand on a later version of the torque converter as what I have now is an earlier version of tc (F1-smooth bell housing) and it is smaller than the later version of tc (J6-ribbed bell housing).