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1978 F-150 C4 shift problem

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Old Jan 2, 2005 | 11:13 AM
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F350flatbed's Avatar
F350flatbed
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From: Eastern Washington State
1978 F-150 C4 shift problem

I've got a 1978 F-150 2X4 with a 302 and a C4. Lately it will not automatically shift into 1st gear by itself. I need to manually pull it into 1st; and then sometimes I need to gas it to get it to shift as well. Is this a valve body problem? I also have low pressure at cold start up. It won't engage the gears until it warms up for a while. Thanks!
 
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Old Jan 2, 2005 | 01:01 PM
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JoeBlow
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From: Bayonne NJ
Check the fluid level for starters. Is the vacuum modulator hooked up? Or working correctly? Is it starting in second gear from a stop?
 
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Old Jan 3, 2005 | 09:16 PM
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F350flatbed
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The fluid level is good, it is starting in second, and the vacuum modulator is hooked up.
 
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Old Jan 3, 2005 | 09:57 PM
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yield2s
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is the shifter indicaton on the steering column acurate? maybe linkage isnt adjusted and your accually in "2" instead on "d"
 
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Old Jan 5, 2005 | 12:50 PM
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F350flatbed
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The linkage is lined up as well. This is why I'm getting so stumped. I've checked all the obvious things.
 
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