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9th May 2012, 03:25 PM
#1
GQ TB42 overdrive problem?
Recently my auto has not been engaging overdrive, not a lock up converter problem, but it seems the power button is in the 'on' position.. The button works and the 'power' light on the cluster goes on and off but is only staying a 3 speed box, no 4th and stretches out the gear changes. Anyone know if there is a quick fix or know what is wrong with it? I'm going home to do a diagnostic check so see what comes up there tonight.. Cheers
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9th May 2012 03:25 PM
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9th May 2012, 11:51 PM
#2
Banned
Being electronic, it sort of appears something is failing in the electrics themselves ... earth issue?? Hopefully someone can assist mate.
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10th May 2012, 10:50 AM
#3
Yeah, the process of elimination is pretty long winded from the GQ service manual, was hoping to get out saturday do I better get cracking with the multimeter
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20th May 2012, 07:41 AM
#4
Rotaredom
Any updates, did you get it sorted?
Time is never wasted when your wasted all the time
WARNING: Towballs used for recoveries can, and do kill people and damage property.
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21st May 2012, 06:32 PM
#5
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21st May 2012, 06:46 PM
#6
As u can see all the internals had done their job and need replacing.. But i like the fact he broke it down for me and layed it out and spent a good hour on a Saturday to explain the bits and pieces to me. That's why i stick with this guy for auto problems. He also drove the missus home after dropping it off. Can't beat great customer service!!
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21st May 2012, 07:26 PM
#7
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21st May 2012, 07:34 PM
#8
Hardcore
She doesn't look too well at all.
Cheers, the ferret.
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21st May 2012, 07:54 PM
#9
But on a positive note, i thought the box shifted and drove well while it was on the way out so imagine how good she'll go when she gets back, plus i'm adding a external cooler which i don't have (since it tows a camper) and the usual upgrade to kevlar bands and getting the touque converter and lock up done..
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29th July 2012, 01:20 PM
#10
Beginner
Looks like you've got yourself a good mechanic. Mine has also lost 4th but I just dropped the pan of mine to find it was spotless clean so it looks like mine is electrical. For some reason 4th is still there if you back off but as soon as I touch the throttle it drops back to third???
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