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Author
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Topic: No forward gears with C4 and gushing fluid out modulator hole
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I65Stang
Gearhead Posts: 6792
From: Sacramento, CA
Registered: Jun 99
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posted 05-30-2006 02:39 AM
 
Gotta love being kicked while you are down... I let my visiting from out of town cousins borrow the Festiva tonight figuring I could take the '65 to work the rest of the week. Well I remembered that she wasnt shifting into higher gears correctly so pulled the vacuum modulator line to find tranny fluid in it. So I got a replacement and when I pulled the old one tranny fluid gushed all over and wouldnt stop flowing until I put the replacement in. Something tells me this is a bad thing as I have done a bunch of vacuum modulators (even in the '65) and have never had this happen before lol. So whats up with this? After getting the mess cleaned up I warmed her up to check the tranny fluid. It was of course low but got enough in her until I could get her totally warm. Problem is I have to rev way high to get into first gear (it is a green dot and doesnt matter which one I put it in). Reverse is working great. Of course now I remember that the last time I drove her I noticed that the tranny was flashing up (it had been a while, I drove her the day before Andrea got in the accident so I totally spaced on this problem). So any clue on what is going on? Anything I can try? I have a good v8 C4 out of a '66 sitting out back but I think I would have to change input shaft, etc to use it. Thanks all. ------------------
Tim M&M Member #35
1965 Mustang coupe, 200 I6, Holley 2300, Clifford header, true duals w/ 26" Smithys
1988 Mustang GT AOD vert, 15.810 @ 88.871 mph 100% stock w/ no traction
1991 Ford Festiva, 30+ mpg, enough said
http://www.mustangsandmore.com/ubb/I65Stang.html
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Jake11
Gearhead Posts: 246
From: Banning,Ca,USA
Registered: Oct 2005
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posted 05-30-2006 08:28 PM
Sounds like the forward clutch is gone.
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I65Stang
Gearhead Posts: 6792
From: Sacramento, CA
Registered: Jun 99
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posted 05-31-2006 10:31 AM
Thanks.
I'm still trying to figure out the gushing fluid part...
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Whitson
Gearhead Posts: 290
From: Western Canada
Registered: Dec 2005
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posted 05-31-2006 10:46 AM
Did you by any chance loose/drop that little pushrod thing that goes in the end of the modulator? That will give you low system pressure and cause what you're discribing. ????
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I65Stang
Gearhead Posts: 6792
From: Sacramento, CA
Registered: Jun 99
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posted 05-31-2006 10:48 AM
No, the rod was reinstalled.
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 05-31-2006 11:13 AM
Did you have the car raised up in the front only? I assume so as the check pin fell out.
Raise the car level, remove the modulator and check pin.
Get a magnet and see if you can fish out the modulator control valve. It is about 2.5 inches long.
Re-install the valve as far as it will go.
Instert the check pin INTO the modulator then re-install it.
Warm up hot and top off fluid.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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I65Stang
Gearhead Posts: 6792
From: Sacramento, CA
Registered: Jun 99
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posted 05-31-2006 11:23 AM
So if I got this right when taking out the old vacuum modulator the modulator control valve fell into the pan thus allowing the fluid to gush and the no forward gears? The check pin came out with the old vacuum modulator and was installed in the new one. Thanks Alex, I'll try that tonight!
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 05-31-2006 12:05 PM
Correct.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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I65Stang
Gearhead Posts: 6792
From: Sacramento, CA
Registered: Jun 99
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posted 05-31-2006 03:11 PM
Thanks again Alex! I'll let you know if it works!
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