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C6 tranny issue
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http://www.clubcobra.com/forums/all-cobra-talk/136454-c6-tranny-issue.html)
| Truetriplex |
05-08-2016 03:30 PM |
C6 tranny issue
I have a C6 coupled to a 428 and it does not down shift (passing gear) when I hit the throttle. What are some possible causes/symptoms and cures for this?
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| Jac Mac |
05-08-2016 06:44 PM |
Do you have a kick-down linkage/cable fitted?
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| Snake2998 |
05-09-2016 06:26 AM |
Is the vacuum modulator connected to the inlet manifold and if so is the pipe not being sucked closed by vacuum?
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| keezling |
05-09-2016 09:15 AM |
Actually the vacuum modulator loss or no vacuum signal would cause maximum RPM upshifts in each gear regardless of throttle setting, kinda the opposite condition...
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| breezridez |
05-09-2016 08:10 PM |
Has the car been sitting for very long or is it driven regularly? It sounds like the governor may be stuck. usually from sitting for long periods in humid climates. I would try a couple of forced manual up shifts and down shifts. moderate to heavy throttle on the up shift. the forced downshifts will force the valve closed.
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| Archrms |
05-10-2016 08:00 PM |
Is this a new problem with an existing transmission that worked fine before, or is it a new transmission that you just installed?
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| Truetriplex |
05-11-2016 05:45 AM |
Thanks for all the input. I hope to find time this week to explore all the ideas suggested. To answer some questions, I just purchased the car. I immediately had the motor pulled for a freshen up, and to fix some small issues. I don't remember if the kick-down worked before and no, it had not been sitting. I wasn't around when it was reassembled so I will have to wait until I have time this week to really look at everything. Again, I do appreciate all the input. It has been a looooong time since I owned a Ford product and the memory is lacking
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| Gaz64 |
05-11-2016 06:52 PM |
What carburetor do you have, and is the kickdown linkage connected?
You need to get it sorted, before you'll be pulling the trans out from failure.
Gary
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