persuading an A340H to shift...
#1
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persuading an A340H to shift...
Another O/D problem. Just got my 88 on the road this weekend. As far as I can remember its been hitting overdrive just fine, and would shift down when I pushed the O/D of button in. Tonight (its been rather cold) I let my rig warm up a good 5 mins as always, so it was at operating temps, took it through town for a good 8 mins, and once I hit the open roads it wouldn't hit overdive.
As far as I can tell, both the engine and trans should have been very well warmed up. I don't have any blinking lights or CEL's. I even tried gaining speed slowly and backing off the throttle trying to get it to shift, and at one point I even put it in 4x4 low (hubs unlocked) and really buried it in third gear hoping it would give up and just shift for me![hillbilly](https://www.yotatech.com/forums/images/smilies/hillbilly.gif)
anything I can try tomorrow if it gives me the business to maybe get it to shift into O/D? It'll be my first time driving my rig to work, wich means first time on the freeway....I really hope me and her can get along tomorrow![saw](https://www.yotatech.com/forums/images/smilies/greenchainsaw.gif)
88 3vze, A340H (I'm pretty sure) Auto, 4x4
As far as I can tell, both the engine and trans should have been very well warmed up. I don't have any blinking lights or CEL's. I even tried gaining speed slowly and backing off the throttle trying to get it to shift, and at one point I even put it in 4x4 low (hubs unlocked) and really buried it in third gear hoping it would give up and just shift for me
![hillbilly](https://www.yotatech.com/forums/images/smilies/hillbilly.gif)
anything I can try tomorrow if it gives me the business to maybe get it to shift into O/D? It'll be my first time driving my rig to work, wich means first time on the freeway....I really hope me and her can get along tomorrow
![saw](https://www.yotatech.com/forums/images/smilies/greenchainsaw.gif)
88 3vze, A340H (I'm pretty sure) Auto, 4x4
Last edited by 85gijunk4x4; 01-23-2013 at 07:24 PM.
#2
Im having problems with my a340h tranny slipping in second gear.when i take off first thing in the morning when its cold it never slips and revs way up but after not even 5min of driving itll start slipping when i stop and then take off.makes truing to pull out in traffic a huge risk. Now what i my questions are is this:
1) would an aftermarket cooler help?
2) would filling it with lucas tranny fix help?
3) since i used a tranny fluid that was cheap and not dex III could that have harmed my tranny?
PLEASE DONT TELL ME TO JUST PUT IN A 5 speed. Thanks to anyone who can help!!
1) would an aftermarket cooler help?
2) would filling it with lucas tranny fix help?
3) since i used a tranny fluid that was cheap and not dex III could that have harmed my tranny?
PLEASE DONT TELL ME TO JUST PUT IN A 5 speed. Thanks to anyone who can help!!
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