Is my auto normal? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

DansEdgli · 11-16-2003, 04:58

I just had a 351C and an auto (C10 Im told) put in my XF last week.

When im stopped and i floor it in drive it takes off slow and takes forever to get up to 80. I though this was odd so i tried it again from being stopped and held the shifter in first gear. I planted it and the rears lit up and the car sidestepped getting to 80 quick smart leaving a nice long black line on the ground.
I have a diff ratio of 2.92 and 235's on 17 inch rims. Nearly brand new tires.

Does this mean my auto is not getting into first when it is in drive? Is this normal? How can i fix it?
When in drive i can feel the gears change but they are very soft changes.
Is it bad to shift it manually without a manual valve body?

what should i do?

Thanks guys
Dan

9psi EB · 11-17-2003, 19:41

I know some autos take off in 2nd unless they are manually put into 1st, not sure if the C10 does that though.

You may have a sticky valve in the valve body, or another problem, causing it to take off in 2nd instead of 1st

DansEdgli · 11-17-2003, 21:49

I just found out There is no kick down cable/rod. Would this cause it? It will be added tomorrow.

Thanks
Dan

natho · 11-17-2003, 21:51

yeah, im pretty sure that would cause it!!

DansEdgli · 11-17-2003, 21:54

I thought it was a little slow for a 351.
Thanks guys.

brenx · 11-19-2003, 02:27

It should go to 1st if stopped without the kick down. I've ran no kick down for years. Just without a kickdown the auto will change up early.

Brenden

DansEdgli · 11-19-2003, 04:29

Im still unsure if the kickdown makes a difference or not. They couldnt get the kickdown rod to fit cos of the firewall. They reset the timing so it revs higher before changing now. Feels about right anyway. Not sure if it goes to first or not. It has a shirt load more power now but still only spins the rears when taking off when manually putting the car in first. It isnt a slug taking off in drive though anymore.
The timing change has made a massive increase in power they must have done it completely wrong the first time.
Im not going to worry about the trans anymore, it responds good enough for me. I might just throw in a quicksilver B and M for the ratchet action and leave it at that.

Thanks guys
Dan

RevHeadRon · 11-19-2003, 04:44

i thought the C10 would have been a vacuum kickdown like other C series transmissions?

DansEdgli · 11-19-2003, 04:53

Im not sure but the wreckers where i bought everything gave me the rod and showed me where it connected on the carb on an engine they had there.
There is definately more power when putting it in first manually though.

Dan

RevHeadRon · 11-19-2003, 05:31

so do you have any pics of your xf?