C4 Not locking into first gear????

A67StangMaster

New Member

May 4, 2005

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San Jose CA

Sep 17, 2007

#1

• Sep 17, 2007

• #1

Today I finally got my 1967 mustang started agian and cleaned up the wireing mess that I had made from the install of the new wireing harness.

I started the car let it warm up to oper-temp then put it into first gear, Nothing happend?

I had removed the valve body about a week ago to clean out the old tranny fluid and put it right back in, it fit right in and seemed to shift perfectly fine, I know the gears arnt messed up beacuse the tranny was rebuilt about 3000 miles ago.

What could be the problem?


Thanks agian......

ps. its a 1967 C4 auto

 

iskwezm

10 Year Member

May 24, 2005

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79

Rowland Heights,California

Sep 17, 2007

#2

• Sep 17, 2007

• #2

Im guessing the valve body didnt go back in correctly.

Are there any gears???forward or reverse????

 

BullittStangV8

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Oct 5, 2002

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NJ

Sep 17, 2007

#3

• Sep 17, 2007

• #3

Did you forget to add new fluid?

 

A67StangMaster

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May 4, 2005

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San Jose CA

Sep 18, 2007

#4

• Sep 18, 2007

• #4

opps

 

A67StangMaster

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May 4, 2005

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San Jose CA

Sep 18, 2007

#5

• Sep 18, 2007

• #5

Ok solved the problem,
I forgot to add the extra oil like BullitStangV8 said

How many Quarts of Dex dose a stock tranny take? including the converter
I added about 4 more quarts to what i had in the tranny now it locks in perfect

 

JDS68Stang

New Member

Sep 3, 2007

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New York State

Sep 18, 2007

#6

• Sep 18, 2007

• #6

Now run it till it's warmed up and check the fluid level, 4 quarts sounds like to much to me.
If I drop my pan (C4) I need to replace 2 1/2 quarts.

 

A67StangMaster

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May 4, 2005

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San Jose CA

Sep 18, 2007

#7

• Sep 18, 2007

• #7

JDS68Stang said:

Now run it till it's warmed up and check the fluid level, 4 quarts sounds like to much to me.
If I drop my pan (C4) I need to replace 2 1/2 quarts.

Click to expand...

well this was the first time I got my car running after the rebuild.

 

BullittStangV8

Founding Member

Oct 5, 2002

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NJ

Sep 19, 2007

#8

• Sep 19, 2007

• #8

I said the check fluid guess as kind of a joke answer ..Glad it helped you out.

 

Iamdiffrnt

Member

Nov 13, 2005

197

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South of Detroit, MI

Sep 20, 2007

#9

• Sep 20, 2007

• #9

Has the trans been rebuilt? I seem to remember Type-F and Dextron tranny fluid don't play nice together. However my information may be dated with all of the newer formulations of tranny fluid.

Edit: I know originally your trans had Type-F if it's a '67 C-4.

Check to see if your trans fluid is foaming.

 

A67StangMaster

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May 4, 2005

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San Jose CA

Sep 20, 2007

#10

• Sep 20, 2007

• #10

Iamdiffrnt said:

Has the trans been rebuilt? I seem to remember Type-F and Dextron tranny fluid don't play nice together. However my information may be dated with all of the newer formulations of tranny fluid.

Edit: I know originally your trans had Type-F if it's a '67 C-4.

Check to see if your trans fluid is foaming.

Click to expand...

How would I check?
A fellow member once told me on here that I should be useing Dextron. so i have been sticking with that?

I havnt really takin it out yet.

 

Iamdiffrnt

Member

Nov 13, 2005

197

6

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South of Detroit, MI

Sep 21, 2007

#11

• Sep 21, 2007

• #11

Just pull out the dip stick after running it for a few minutes, if there is no foam on it, you're probly ok. The way I understood it something in the two fluids reacted in such a way that it would aerate (?) very easily, obviously lots of tiny bubbles arent a good thing in a hydraulic system. Maybe if it was designed by Don Ho?

Edit: If you have been using it for a while you're probly ok, I think it's mostly when the two are mixed.