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C4 2-3 shift flare

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Old 05-25-2015, 08:45 PM   #1
panteramatt
 
Join Date: Aug 2004
Posts: 33
Default C4 2-3 shift flare

The stock C4 tranny in my 74 bronco has a bad shift flare. The kickdown foot had fallen off the lever so I dropped the pan and welded it on. Fluid looked great and all. I remember a while ago adjusting the front band and that didnt help at all. Should I tighten it a little more? Could it be the servo or could I change the modulator pin size to help? It also shifts from first to second extremely fast so fast I thought I was starting in second everytime. How do I get it to rev higher before it shifts? The kickdown cable isnt hooked up yet BTW.
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Old 05-25-2015, 08:57 PM   #2
barnett468
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Join Date: Nov 2013
Vehicle: 1965 shelby
Location: arizona
Posts: 1,097
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ok, a flare is when the trans disengages temporarily which allows the engine rpm to increase until the ttans engages again . . these trannies have a tiny bit of flare when new.

the band should be adjusted until the bolt is snug then back it our 1 1/4 turn.

first and second are operating as designed, you can not change it.

do not put long pins in the modulator or adjust it more than 2 1/2 turns.

your trans is likely fried.
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Old 05-25-2015, 08:57 PM
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