86 bronco needs tranny help!
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From: Boise, ID
86 bronco needs tranny help!
I Have an 86 ford bronco and the original 302 wore out so i bought a new 302 out of a friends wrecked bronco of the same year. I have already made the change with the engine and transmission together never disconnecting the two, however now that everything is done, the berg warner tranny is not shifting up. I have checked the fluid and it's ok. As far as I can tell everything is connected. The transmission goes into gear(D,R,N) just fine, but when driving just will not shift up. It feels likes it's slipping but it never shifts. I would be awsome if anyone has any suggestions. I don't know if there's possibly an electronic problem or if it's internal? Anything is appreciated!
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Joined: Jul 2002
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From: Bend,OR
what tranny is it the AOD or C6. If its the AOD then the TV cable is out of adjustment and i wouldnt drive it anymore tell thats fixed properly otherwise it will toast that tranny. If its a C6 then either a vacum line isnt hooked up to the modulator or the modulator is bad.
If that tranny is an AOD and frys on ya i will have one from an 85 shortly. im not to far away
If that tranny is an AOD and frys on ya i will have one from an 85 shortly. im not to far away
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From: Boise, ID
I believe it's the AOD because i also have a C6. Which Part is the "TV" cable and how does it need to be adjusted? Is it internal? Is it worth trying to fix or to change it back out with my original from my original engine. The reason i didn't do that to begin with is so i wouldn't have to break the engine and tranny apart during the change. However i do have another one if in worst case senario i have to change it out.
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From: Bend,OR
if the Tranny has an OD gear then it is the AOD. the TV cable is up by the throttle cable and runs back to the tranny. if you didnt carry that over and its running with out it for awhile then that tranny could be fried.
go to this link http://www.supermotors.org/vehicles/....php?id=157919
the orange plastic piece on top of the throttle body is the TV cable. your haynes manual will show how to adjust properly
go to this link http://www.supermotors.org/vehicles/....php?id=157919
the orange plastic piece on top of the throttle body is the TV cable. your haynes manual will show how to adjust properly
Last edited by Kemicalburns; Jun 5, 2006 at 11:40 AM.
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From: Boise, ID
aod Tranny
Ok now i'm getting a little confused. The orange piece over the cable is the throttle cable like from the pic on the link. the other black cable on the throttle body for the OD is connected already, However my understanding is that when the throttle is mashed down the cable manualy pulles the AOD tranny down out of overdrive to give more power. I don't see how this would affect it from shifting up when increasing speed? I have messed with that cable and no change or response.
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From: Bend,OR
can you manually shift it up? that tv cable does what you said but if its not adjusted properly it can burn up the tranny. are you sure the tranny you swapped in was good? is the tranny full of fluid and when was it serviced last?
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Joined: Jun 2003
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From: NC
Originally Posted by RUCrazy
Ok now i'm getting a little confused. The orange piece over the cable is the throttle cable like from the pic on the link. the other black cable on the throttle body for the OD is connected already, However my understanding is that when the throttle is mashed down the cable manualy pulles the AOD tranny down out of overdrive to give more power. I don't see how this would affect it from shifting up when increasing speed? I have messed with that cable and no change or response.
You must make sure you have AOD transmission and use AOD brackets and linkages not C6 brackets and linkages.
Also it seem like you're confusing the differences between TV cable and kickdown cable / linkage. The cable connection is very similiar but operation is totally different.
The picture link that kemicalburns posted don't mean anything because it can be either AOD or C6.
Only on AOD transmission. TV cable do controls upshift and downshift.
TV stands for throttle Valve.
TV cable adjustment must be correct otherwise you will have no upshift or weak shifting charateristic or harsh shifting charateristic.
Manually upshift a AOD without TV cable will not make any different.
Bottom line....
make sure you have correct trans and linkages.
make sure the linkage is hooked up correctly.
There are couple more items that can cause no upshift but I will not posted yet until you're sure of your installation to prevented any further confusion.
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From: Bend,OR
kwik
that picture is of an AOD setup from my engine bay. the TV cable adjustment is located right there. a C6 would not have that same arrangment
that picture is of an AOD setup from my engine bay. the TV cable adjustment is located right there. a C6 would not have that same arrangment
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From: NC
Originally Posted by Kemicalburns
kwik
that picture is of an AOD setup from my engine bay. the TV cable adjustment is located right there. a C6 would not have that same arrangment
that picture is of an AOD setup from my engine bay. the TV cable adjustment is located right there. a C6 would not have that same arrangment
I just did couple of full size F series and Bronco AOD and C6 at local Ford dealership.
Oh well...what do I know.
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From: Boise, ID
My AOD
The transmission is an AOD. The linkage is exactly the same that goes with the truck and the transmisison. the dropdown cable and all other cables are correctly hooked back up. I have put everything back together and double checked with my chilton and with the pic from Kemicalburns. They are exactly the same.
After consulting with other local knowledgable guys I think I have come to the conclusion that the clutches are stuck...therefore plan on changing out the transmission. What do you think. Right idea? If nothing else it will let me know if the tranny is bad or if something really is hooked up incorrectly.
After consulting with other local knowledgable guys I think I have come to the conclusion that the clutches are stuck...therefore plan on changing out the transmission. What do you think. Right idea? If nothing else it will let me know if the tranny is bad or if something really is hooked up incorrectly.
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From: Boise, ID
Resolution to the no shift tranny
Well... there is always a learning experience. I found the problem after Changing transmissions, torque converter, ECM, Speed Sensor, Speed Sensor module. When I changed the engine i did not have the O2 sensor pluged in completely. As soon as i connected the O2 it worked perfectly.
thanks everyone for your help!!!
thanks everyone for your help!!!
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