P0740 TCC Failure
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Posts like a Turbo
Joined: Mar 2009
Posts: 342
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From: Richmond,Va.
The part that Johnd89 mentioned probably won't help you. That valve controls the on off function for the tcc. Your tcc is turning on. The problem is low apply pressure for the clutch. This is the part that would most likely help you.
Sonnax Transmission, Torque Converter, Performance, Driveline Parts :: Transmission :: 84754-01K :: Part Summary
This valve has extreme wear since it constantly buzzes in the bore while tcc is engaged. The other valve just clunks back and forth for engagement and disengagement.
I do not recommend going into the valvebody unless you have experience working on trannies. I have seen many people in the trade make mistakes.
But if you do try, Make sure you have new valvebody gaskets ready. And don't lose any of the check balls that will fall out.
Sonnax Transmission, Torque Converter, Performance, Driveline Parts :: Transmission :: 84754-01K :: Part Summary
This valve has extreme wear since it constantly buzzes in the bore while tcc is engaged. The other valve just clunks back and forth for engagement and disengagement.
I do not recommend going into the valvebody unless you have experience working on trannies. I have seen many people in the trade make mistakes.
But if you do try, Make sure you have new valvebody gaskets ready. And don't lose any of the check balls that will fall out.
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Posts like a Ricer Type-R
Joined: Aug 2009
Posts: 18
Likes: 0
From: West Brookfield, MA
Realistically, you are looking at 400 to 600 dollars to fix this. That is to do a torque converter, install the valve, and a new filter and fluid, of coarse. I think this is a fairly cheap price.
Personally, once the tranny is out of the vehicle, to replace the tc that has been forced to slip for so long; I would at least inspect the rest of the unit. There are too many parts that are known to fail to not do this.
I am in Massachusetts and if you where close enough I would be able to help you out on keeping your costs down.
Hope it all works out for you
Personally, once the tranny is out of the vehicle, to replace the tc that has been forced to slip for so long; I would at least inspect the rest of the unit. There are too many parts that are known to fail to not do this.
I am in Massachusetts and if you where close enough I would be able to help you out on keeping your costs down.
Hope it all works out for you
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