Auto confusion

Ive been having some problems with my auto in my swb gq, it was due for a service so took it nd got it done, told the mech what was happening, he serviced it, test drove it, tested voltage nd said theres nothing wrong with the box at all, its an electrical problem, -$300 for a test and service!!!!
Booked it in to a local Auto lecky, told them exactly what was happening, told them its just been serviced nd tested nd the mech said its a lecky problem!! Today got a call saying its ready to be picked up, so cruzed there to pay bill, the lecky said there were some earth problems here and there, they done a system dianosis all good, so they fixed them up nd the car is now fine :clapping:
ok sweet so i paid my bill -$472 for a electrical fix :mad:
picked it up later in the arve, started driving up the street nd nothing has changed :blowup:

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,

2 HOLD switch is active, still changes through gears, even drops back when accelerating wtf, (it never use to)

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

4 Anybody else had any such dramas with there autos like this or even close? any info would be good so i can get some ground

Ill be taking it back tommorrow and having a chat to them both the mech nd lecky, even tho they have a really good rep round town but nearly $800 for not much change aint right!!!!

Jeepers ! on first reading i thought the $472 included the initial $300, wow, sounds like you need to find new people to work on ya car ?

Sorry dont have any real info for ya, id just be guessing, but in my experience with any auto gearbox problem, you are nearly always better to take it straight to a Automatic Gearbox specialist, they are often the only ones that won't be just "guessing".

Cheers mate,
lol yeah not cheap, all tho he is an automatic gearbox specialist aswell as power steering ect,
ill just go back and forth to both, maybe if i annoy them enough ill get some answers haha!!!!

Gday mate,

Sounds like the TPS need adjustment there. TB or TD..?

Its a TB42e Ade, i went back to the leckys this arve and mentioned it hasnt changed, they said take it back monday nd they will go through it again, also went back to the auto specialist to ask what else it could be, he then said the voltage reading at the auto computer was around normal at idle, but the reading at the tps was alot higher!!

Bad TPS will make gear changes very jerky. Quick test: disconnect TPS connctor. Take for drive. If no change - Bingo!

Thanks Reef yeah we tried that, even changed tps over but still no difference.

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

Did they test the potentiometer on the TPS itself mate? To make sure it was smooth through the opening of the throttle? The gearbox uses dual signals from the engine rev sensor and the TPS to sort gear changes, and whilst it may have 0.45 volts at idle it may have glitches through the range and needs to be tested with an OHMs reading to make sure that it doesn't have any flat spots and/or spikes through its entire opening range.

Hey Bigrig dropped it of this morning nd went to see what the verdict was after work, they tested the tps nd that, everything was smooth they say, now they also said it could be the auto computer, see i got another one off a mate to check for myself incase it was the comp but they said both could be stuffed cause they try both after another nd the do totally different things, lol so yeah whats the chances of that!!!!!

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

Quote:

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Originally Posted by taslucas

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

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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

Quote:

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Originally Posted by saw13

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

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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

Quote:

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Originally Posted by saw13

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

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

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

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Originally Posted by NissanGQ4.2

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

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

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

Quote:

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Originally Posted by 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

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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

Quote:

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Originally Posted by saw13

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

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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.

Quote:

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Originally Posted by taslucas

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

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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.

Quote:

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Originally Posted by NissanGQ4.2

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.

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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 ??

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).

Quote:

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Originally Posted by saw13

As soon as you turn your key on, does the light come on for two secs then flash 16x ??

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On mine, yes. This still happened, sometimes..

Quote:

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Originally Posted by saw13

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 ??

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No, power light comes on for about 2 secs then goes out, that's all that should happen as far as I'm aware.

When you get a chance, would it be possible 2 record the flashes for me please and post it up???

Just about 2 send you a pm

Cheers

Todd

Quote:

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Originally Posted by 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).

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I disconnected the TPS, turned the key to the ON pos, O/Drive was turned OFF nd the light comes on, turned ON the O/Drive light goes out, hhmm!!!
Mine is also a the J6 ribbed box nd also has a GU stall converter as i was told by my mate that i currently bought the motor nd box off.

Quote:

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Originally Posted by NissanGQ4.2

No, power light comes on for about 2 secs then goes out, that's all that should happen as far as I'm aware.

When you get a chance, would it be possible 2 record the flashes for me please and post it up???

Just about 2 send you a pm

Cheers

Todd

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Tried the DIA once again Todd, nothing happened,
But as soon as u turn the key to the ON pos or start the car, the power light comes on solid for 2 secs, then flashes continuosly for 16 times.

There is one other option that i can think of before i take it back to the auto leaky, is to disconnect the wiring harness from the auto to the connectors underneath the engine bay nd check for bare or damaged wires, just a thought!!!

Quote:

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Originally Posted by saw13

Tried the DIA once again Todd, nothing happened,
But as soon as u turn the key to the ON pos or start the car, the power light comes on solid for 2 secs, then flashes continuosly for 16 times.

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Does the power light flashes indicate an issue - i.e. the number and type of flashes indicates a specific problem .. because mine is having issues as per other threads also, and it flashes about a dozen time when I turn the truck on??

In the Haynes manual that I have it's not the,amount of flashes but the length of any given flash, i.e. if third flash stays on longer it is such and such, or if 6 short flashes followed by four long it is means another issue etc....I can't remember the exact wording. Will have a look when I get home. The first time I did the diagnostic check it said I had a problem with my TPS....turns out there was no TPS at all! So it was on the money

tappin it

c'mon get the mobile phone recording and post up the flashes for us so we can work out what the fault code is :)

Quote:

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Originally Posted by NissanGQ4.2

c'mon get the mobile phone recording and post up the flashes for us so we can work out what the fault code is :)

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Hey mate sorry ive taken a mobile video of it but it wont let me post it up at all, keeps saying upload failed!!!!

Quote:

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Originally Posted by taslucas

In the Haynes manual that I have it's not the,amount of flashes but the length of any given flash, i.e. if third flash stays on longer it is such and such, or if 6 short flashes followed by four long it is means another issue etc....I can't remember the exact wording. Will have a look when I get home. The first time I did the diagnostic check it said I had a problem with my TPS....turns out there was no TPS at all! So it was on the money

tappin it

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Yeah i looked very closely nd every flash is the same exact amount of time lol

Quote:

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Originally Posted by Bigrig

Does the power light flashes indicate an issue - i.e. the number and type of flashes indicates a specific problem .. because mine is having issues as per other threads also, and it flashes about a dozen time when I turn the truck on??

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With the self dianosis it said, All judgmental flickers are the same = All circuits that can be confirmed by self-diagnosis are O.K
but in saying that it states 10 judgmental flickers, and mine is 16 lol

http://youtu.be/TJCcBJV0J6s

the only way i know how to do it lol

Quote:

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Originally Posted by saw13

http://youtu.be/TJCcBJV0J6s

the only way i know how to do it lol

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Thanks for that mate, will have a better look at it 2nite when the rug rats have gone 2 bed, from reading the service manual there is only mean to be 10 flashes after the initial longer flash and depending on the time length of each flash will tell you where to start looking.

Very strange, can you confirm if your gearbox is the RE4R03A???

There should be a tag on there saying what the gearbox is, can't remember of the top of my head where mine was located

Quote:

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Originally Posted by NissanGQ4.2

Thanks for that mate, will have a better look at it 2nite when the rug rats have gone 2 bed, from reading the service manual there is only mean to be 10 flashes after the initial longer flash and depending on the time length of each flash will tell you where to start looking.

Very strange, can you confirm if your gearbox is the RE4R03A???

There should be a tag on there saying what the gearbox is, can't remember of the top of my head where mine was located

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haha i know the feeling mate but u gotta love them lol
ok now i found out something, i just pulled the traces of wire out and checked them all, theres no damaged or bare wires, good!!!
power light is still coming on when O/D was selected with all the wires disconnected, not sure why i checked that but glad i did cause wouldnt this mean the fault is not in the box!!!
then i thought i might just swap the comps over (the original from car) nd there u have it the power light stay off while selecting O/D!!!!!

i put the other one back in nd the light come on!!!!
so in theory, would the ribbed auto have a different type of computer?????
seeing i tried a mates comp out of his car nd the light would come on to, (his isnt ribbed)
Btw ill check that tag tomorrow mate nd let u know as its gotten to dark, as of now im just going off what my mate has said about the box lol

Quote:

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Originally Posted by saw13

haha i know the feeling mate but u gotta love them lol
ok now i found out something, i just pulled the traces of wire out and checked them all, theres no damaged or bare wires, good!!!
power light is still coming on when O/D was selected with all the wires disconnected, not sure why i checked that but glad i did cause wouldnt this mean the fault is not in the box!!!
then i thought i might just swap the comps over (the original from car) nd there u have it the power light stay off while selecting O/D!!!!!

i put the other one back in nd the light come on!!!!
so in theory, would the ribbed auto have a different type of computer?????
seeing i tried a mates comp out of his car nd the light would come on to, (his isnt ribbed)
Btw ill check that tag tomorrow mate nd let u know as its gotten to dark, as of now im just going off what my mate has said about the box lol

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Sorry mate, but I have no idea what you mean by "ribbed"

I also have a J6 torque converter in mine, and never changed my ECU or TCU they are still original.

If I have read correctly you say you put your original TCU back in and the light didn't come on, so why don't you leave the original TCU in there.......and why did you change it for in the first place.

Cheers

Todd

Quote:

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Originally Posted by NissanGQ4.2

Sorry mate, but I have no idea what you mean by "ribbed"

I also have a J6 torque converter in mine, and never changed my ECU or TCU they are still original.

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I found out this afternoon I do have the J6 ribbed gearbox. I learn something new every day *L*

Found a solution to this yet?

i think ya's have answered all my questions. mine changes too quick and all that. so im gunna have to see about getting a tps and see if its that. i played around with mine and made it a little better but still not right. so new tps for me. thanks guys.