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1st gear shifts early rest of gears shift perfect

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Old 10-21-2008, 11:15 PM
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Chucky32v
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Default 1st gear shifts early rest of gears shift perfect

I have a 85' 5.0l 32v auto and my first gear shifts at 4900rpms while the other gears shift at redline. I have read many posts but can't seem to find an answer. Is something wrong internally or is there adjustment I can make. Thanks

P.S. Thanks rennlist because of you guys i've fixed alot of problems on my 928.
Old 10-21-2008, 11:28 PM
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Mrmerlin
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need more info, when was the last fluid change, what kind of things have you fixed, are the vacuum lines all connected. How many miles on the box
Old 10-22-2008, 03:22 AM
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Chucky32v
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Don't know on the fluid change. The kickdown switch works perfectly. Adjusted the bowden tranny tighter. 112k miles on the trannny. The vacuum lines are attached. Thanks
Old 10-22-2008, 08:50 AM
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Ispeed
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That's normal, leave it in "2" and see if it will rev out higher.
Old 10-22-2008, 09:20 AM
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with cable tighter it usually only take a half turn or less if the cable was adjusted close to properly if you turned the cable say 1 or 2 turns then it might be over adjusted

But follow the adjustment proceedure in the WSM for best results , and it may take you going out with a small wrench and testing your results, like I said once the cable is close to perfect it usually only takes a 1/4 to 1/2 turn to get things perfect
Old 10-22-2008, 11:00 AM
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Originally Posted by 928andRC51
That's normal, leave it in "2" and see if it will rev out higher.
Yup! +1



...but I'd still change the tranny fluid to new and install a new filter (maybe even add 24 ounces of Lucas no-slip tranny juice, too).
Old 10-22-2008, 11:41 AM
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SeanR
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Mine does that most of the time also. Some days 1st will go to redline, most of the time it won't. The rest of the gears go all the way up. The engine feels much stronger on the days 1st goes all the way up. I dunno. Hope someone has a solution.
Old 10-22-2008, 02:17 PM
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Chucky32v
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It doesn't seem to matter if I leave it in D or 2. It shifts right at 4900rpms. Even if i'm at half-throttle it shifts at 4900rpm.

So it looks like i'm not the only person with the problem and no one knows a solution yet. Damn Keep the suggestions coming i'm going to ticker with it all day so I'll post my findings later.
Old 10-23-2008, 05:18 AM
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Chucky32v
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So today I drove it around adjusting the transmission cable. I loosened and tightened it from 1-6 turns in both directions and it never once shifted past 4900rpms in first. I know later autos don't start out in first usually but they can redline in first when they do. I think the early 4spd autos start out in first but shift early. My guess is a compitent auto expert could adjust then its being rebuilt.

Any other ideas that I could try to see if I can get it to redline in first?
Old 10-23-2008, 08:42 AM
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Ispeed
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Buy a 5 speed and no more complaints.

sorry, too much coffee this am.

Last edited by Ispeed; 10-23-2008 at 09:02 AM.
Old 10-23-2008, 09:07 AM
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SEnd a IM to Steve Catano he is the trans specialist, do a search..
Old 10-23-2008, 09:32 AM
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Did the adjustments have any effect on shifting? Not trying to be critical but if it didn't, you adjusted the wrong cable. If it held onto or let go of shifts as you adjsuted, then you got the right cable. Adjust it how you'd like the car to shift. Next get a midi-vac and start checking vacuum. Start on the modulator located above the exaust on the tranny where the vacuum line connects. It should hold 12 psi or so rock solid. If it bleeds vacuum, replace ($48 bucks or something). Next check the vacuum line that runs from that to the "spider", a seven way vacuum splitter located on top of the intake where 7 vacuum lines intersect. If that line doesn't hold vacuum, bypass it with a new line to the modulator. It's in a hard place to get to so it's easier to re-route with a new line.

Have you replaced the filter and fluid? Have you gone to synthetic fluid? Both are good ideas. My 1-2 shift came later just by doing synthetic.
Old 10-23-2008, 02:20 PM
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Chucky32v
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Originally Posted by Popo928
Did the adjustments have any effect on shifting? Not trying to be critical but if it didn't, you adjusted the wrong cable. If it held onto or let go of shifts as you adjsuted, then you got the right cable. Adjust it how you'd like the car to shift. Next get a midi-vac and start checking vacuum. Start on the modulator located above the exaust on the tranny where the vacuum line connects. It should hold 12 psi or so rock solid. If it bleeds vacuum, replace ($48 bucks or something). Next check the vacuum line that runs from that to the "spider", a seven way vacuum splitter located on top of the intake where 7 vacuum lines intersect. If that line doesn't hold vacuum, bypass it with a new line to the modulator. It's in a hard place to get to so it's easier to re-route with a new line.

Have you replaced the filter and fluid? Have you gone to synthetic fluid? Both are good ideas. My 1-2 shift came later just by doing synthetic.
At full throttle there is no vacuum so it can't be vacuum related. And from what I noticed the tv cable doesn't effect full throttle shifting that much. When I loosened it ALOT it did lower the shift point 300rpms in first and 500rpms in 2nd but this was VERY loose. And no matter how tight I made it would not shift higher out of first. Remember this is at full throttle not part throttle. Thanks though.
Old 10-23-2008, 02:51 PM
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Buy a 5 speed and no more complaints.
Better yet...buy a 3spd auto and love life to it's fullest!
Old 10-24-2008, 02:21 PM
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Chucky32v
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Originally Posted by Mrmerlin
SEnd a IM to Steve Catano he is the trans specialist, do a search..

I've looked for him but can't seem to find his user name. Any got it? Thanks


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