transmission problem?
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Senior User
Joined: Oct 2007
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transmission problem?
i have an 83 f150 4wd w/ 302.
whenever i put the truck in drive from park it takes about 5 secs to get in drive. it seems like it is worse on cold starts. it also does it when i put it in reverse or manually shift into first. is this normal. it has the c6 tranny.
also, what does the transmission kickdown on the carb do? i dont think i have one hooked up. all i have is the throttle cable.
whenever i put the truck in drive from park it takes about 5 secs to get in drive. it seems like it is worse on cold starts. it also does it when i put it in reverse or manually shift into first. is this normal. it has the c6 tranny.
also, what does the transmission kickdown on the carb do? i dont think i have one hooked up. all i have is the throttle cable.
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Joined: Nov 2006
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From: Quad Cities, IA
I'd have to say it is not normal. My C6 goes into drive almost as soon as I get the shifter into that range.
The "kickdown" on the side of the carb is what makes your transmission downshift when you floor your fuel pedal. Without it, you'd have to manually downshift if you wanted to do that. (Also called "passing gear" by some folk)
The "kickdown" on the side of the carb is what makes your transmission downshift when you floor your fuel pedal. Without it, you'd have to manually downshift if you wanted to do that. (Also called "passing gear" by some folk)
Cargo Master
Joined: Dec 2004
Posts: 3,362
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From: Florence, SC
Are you SURE you have a C6 transmission?
Sounds like you have an AOD (Automatic Over Drive) transmission. An AOD doesn't use a kickdown, only a throttle cable, and it BETTER be adjusted correctly! Most 302s came with the AOD.
Do you have a bar running from the tranny and hooked to the throttle of the carb? Does your gear selector say P R N OD D 1? If you do, you have an AOD, not a C6.
Sounds like you have an AOD (Automatic Over Drive) transmission. An AOD doesn't use a kickdown, only a throttle cable, and it BETTER be adjusted correctly! Most 302s came with the AOD.
Do you have a bar running from the tranny and hooked to the throttle of the carb? Does your gear selector say P R N OD D 1? If you do, you have an AOD, not a C6.
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From: Quad Cities, IA
LARIAT 85 is correct that the AOD does not have the kickdown cable. As far as I know, all overdrive transmissions work off of fluid pressure to know when to shift/downshift, and if your throttle cable isn't adjusted correctly it will make all your shift points wierd and eventually destroy your transmission.
If you do have the C6, your shift range indicator in the dash will read P R N D 2 1 and even has a nice little feature of being able to lock out 1st gear entirely if you put it in the 2 range. Starts the truck out in 2nd gear. Good for in the winter on ice if you loose traction a lot.
As far as the late shifting into D when you first start up, I'd say it could be low fluid or a worn pump. Could even be contamination in the fluid jamming stuff up inside the tranny.
Get some new fluid, drop the pan, change the filter, replace the pan, add new fluid, see if the problem goes away. The worst that happens then is it doesn't work and you're out twenty bucks or so. Best that happens is, nobody has changed the fluid in a long time and that's all it needed.
If you do have the C6, your shift range indicator in the dash will read P R N D 2 1 and even has a nice little feature of being able to lock out 1st gear entirely if you put it in the 2 range. Starts the truck out in 2nd gear. Good for in the winter on ice if you loose traction a lot.
As far as the late shifting into D when you first start up, I'd say it could be low fluid or a worn pump. Could even be contamination in the fluid jamming stuff up inside the tranny.
Get some new fluid, drop the pan, change the filter, replace the pan, add new fluid, see if the problem goes away. The worst that happens then is it doesn't work and you're out twenty bucks or so. Best that happens is, nobody has changed the fluid in a long time and that's all it needed.
Thread Starter
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Senior User
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ok thanks. im sure the transmission is a c6, it says transmsission code k and i dont have overdrive. how would i hook up the transmission kickdown. and would this describe why my truck bogs down for a sec after sudden acceleration?
and ill check the fluid level tommorow.
and ill check the fluid level tommorow.
Senior User
Joined: Nov 2006
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From: Quad Cities, IA
Truck bogging down on a sudden accelleration could be any number of things. This ranges anywhere from an improperly calibrated carburetor (fuel bowl floats set too low possibly) to a weak or failing part in the ignition such as the vacuum advance. It's fairly unlikely that the truck would bog down if it were a transmission problem. Most likely, it'd be slipping in a certain gear, and revving higher than normal for a few seconds while it's slipping.
This issue is most likely an engine-related problem.
This issue is most likely an engine-related problem.
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ok. its problably in the carburetor cause i just put a new one on. a holley 1850.
how does the transmsiison kickdown hok up to that carb?
how does the transmsiison kickdown hok up to that carb?
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Senior User
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From: Quad Cities, IA
It doesn't.
Not without an adaptor or some modifications, anyway.
I had to fabricate a piece to install mine onto my carb (I have a similar Holley model I put on mine). You *can* buy an adaptor plate that bolts right on to your throttle assembly, but I'm cheap and just made one.
Not without an adaptor or some modifications, anyway.
I had to fabricate a piece to install mine onto my carb (I have a similar Holley model I put on mine). You *can* buy an adaptor plate that bolts right on to your throttle assembly, but I'm cheap and just made one.