C-4 trans: No forward gears
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Joined: Nov 2006
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C-4 trans: No forward gears
I just bought a 1987 ford ranger with a built 302 with a c4 trans, B&M shifter, and posi front and back. The truck has 2000 on the drivetrain total. I was turning on to a road and i got up to 15MPH then all of a sudden the transmission seemed to pop out of gear, and it will not go forward no matter what gear i put it in or even if i rev it up. It has reverse, and the fluid is good. I saw underneath it seemed to have a little fluid where the tans and transfer case connect. I even had it running, then went underneath and manually shifted the gears right at the transmission and nothing but reverse. This is a clean and powerful truck, and it totally took me by surprise. Does anyone know what could possibly be wrong. Oh and i wasn't doing burn outs with it or beating it.
Elder User
Joined: Feb 2008
Posts: 640
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From: US/Baja border
Yup, pull the pan and see whats in it.
You said the fluid is good, does that mean clean? I had a trans where the filter was so dirty fluid would not pass through it causing no forward gears.
It does sound as though it's not long for this world w/o an overhaul.
You said the fluid is good, does that mean clean? I had a trans where the filter was so dirty fluid would not pass through it causing no forward gears.
It does sound as though it's not long for this world w/o an overhaul.
Elder User
Joined: Dec 2007
Posts: 739
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First off? A moderator might want to relocate this to the correct forum area. (Truck is a few years older for this, as we deal mainly with '73-'79) However let's see if we can be of help anyway :-)
Can you shift to manual first gear (on the shifter, all the way to "Low-1" or "L") Reason I ask is the transmissions use a one way roller clutch for first gear. That locks down part of the gear set, instead of using the band/clutch for that purpose. Now if you shift all the way down to first gear (not drive---but all the way down to first) And all the sudden the transmission engages? The one-way clutch is blown.
More then likely you'll wind up pulling the pan and inspecting the filter and the bottom of the pan. I have a feeling it will have quite a bit of metal shavings in it. It really does sound like an internal fault.
S-
Can you shift to manual first gear (on the shifter, all the way to "Low-1" or "L") Reason I ask is the transmissions use a one way roller clutch for first gear. That locks down part of the gear set, instead of using the band/clutch for that purpose. Now if you shift all the way down to first gear (not drive---but all the way down to first) And all the sudden the transmission engages? The one-way clutch is blown.
More then likely you'll wind up pulling the pan and inspecting the filter and the bottom of the pan. I have a feeling it will have quite a bit of metal shavings in it. It really does sound like an internal fault.
S-
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