Ford Transmission :: 1979 - Rebuilt C6 - Late Shift And Slipping
So against my better judgement I rebuilt my C6 myself. It's all back together and in my 79 F150 2wd 400cu. It seems to not want to shift into 2nd on it's own. I can manually shift it into all the gears but 2nd feels like it slips. So here is a list of parts with questions:
I used Mercon V instead of Type F. The transmission is a 1987 and the bottle says it covers vehicles requiring Dextron/Mercon.
I installed a FF servo lever with a P servo. My kit didn't come with a new spring. What effect would a worn spring have?
When adjusting the band, I set it to 120in/lbs and backed it off 1.5 turns. This seemed very loose to me. It leaves the set screw finger tight/loose, so I tried turning it in 1/2 turn but that made no difference and I won't drive it until I readjust it. Also it's a RedEagle wide band, but that shouldn't make a difference.
One place I think I could have a problem is with the modulator. I didn't have a scale to do the 12.5 lbs method, but I had a big syringe, vacuum guage, tubing and t fitting. I could hold the -15" of mercury but the rod didn't go in to the notch like it said it should. I was going to stick the old one in but it's bent and the rod is missing. Will a bad or misadjusted modulator cause the tranny to slip in 2nd? I don't think it's inbetween gears because it does accelerate in 2nd.
I used the BadShoeProductions video along with a Ford Shop manual to assist me.
Complete list of replaced items:
New Modulator
F servo lever with P piston
All Friction and steels
Pressure plates for additional friction plates per video.
All Seals and gaskets
New wide band
New pump
Hughes torque converter
TransGo shift kit
New Sun Shell (Took my end play from .070 to .012)
Everything was cleaned and tested ok per video.
Then only problem with the video is it doesn't tell you what to do when you have a problem, only shows you how to tear down and reassemble.
I used a torque wrench for everything, but if it turns out it's a valve body problem then I will go back through it but only using a nut driver.
The kick down rod is working properly.
My gear selector is set properly.
Ford F-150 (2009-2014) :: Transmission Hard Shift Between 1st And 2nd Then Again Between 2nd And 3rd
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I have a 2014 screw 4x4 v8 that has been in the shop 5 times now for something that the dealership can't duplicate, and that is intermittent enough for me that I can't determine what the conditions need to be in order to duplicate it myself.
My transmission will shift hard under two different situations:
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