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wont shift out of 1st wot

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Old May 6, 2010 | 12:28 AM
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Default wont shift out of 1st wot

just got a 99 z28 yesterday. i havent had any problems out of it till i washed it today. after i left the car wash i noticed it didnt want to shift till way late. it got worse, now it wont shift at wot. it just bounces off the rev limiter. is it possible i got something wet (pcm, speed sensor)? any help would be appreciated
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Old May 6, 2010 | 12:29 AM
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btw it has slp headers, exhaust, and a mild cam
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Old May 6, 2010 | 01:51 AM
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I dont have an answer for you, but I have a buddy with a bolt on 00 Mustang GT who's car is doing kind of the same thing. Its kissing the rev limiter before it shifts, mainly in the 1-2 shift. Im curious to find out what it may be as well. Has your car been tuned and shift points raised?
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Old May 6, 2010 | 12:41 PM
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i dont know. it wasnt doing this when i first got it
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Old May 6, 2010 | 12:45 PM
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gonna try a trans service today if i can get to it
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Old May 6, 2010 | 03:49 PM
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you need your trans rebuilt, its the 1-2 band out. i had the same probs
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Old May 6, 2010 | 06:58 PM
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looks like a rebuild
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Old May 7, 2010 | 04:28 PM
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where are you located at nathan carter? i gotta guy in dfw who can do it and does wonders with the 4l60e for a dam good price! lmk
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Old May 7, 2010 | 07:08 PM
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northeast arkansas... i put the scan tool on it today and it showed a bad circuit in 1-2 shift solenoid. gonna try that tomorrow, or maybe tonight.
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Old Aug 2, 2010 | 11:28 AM
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My 98 T/A is doing the some thing. Did you find out what the problem was?
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Old Aug 2, 2010 | 09:27 PM
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If your problem is Only second-I would suspect a stuck ck ball in a worn out separator plate (quite common on high millage vehicles.)
If you had no 4th either, I would suspect a worn or broken band (anchor end breaks sometimes)
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Old Aug 2, 2010 | 11:57 PM
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Yea its just 1st to 2nd after it does shift everthing is fine. Normal driving it wont shift out of 1st until its 3000+ rpm's and at wot it just stays on the rev limiter in 1st.
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Old Aug 3, 2010 | 12:36 PM
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Im having the same problem 2-3 gear is good its just 1-2 it sucks i cant race till i get money to fix it
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Old Aug 6, 2010 | 03:34 AM
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So what do u got to do to fix it?
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Old Aug 11, 2010 | 08:57 AM
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Im buying a rebuild kit from all pro automatics and just beefing up the tranny. putting a stall in and a manual valve body with a slap shifter.
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Old Aug 11, 2010 | 09:53 AM
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Originally Posted by nathan.carter95
northeast arkansas... i put the scan tool on it today and it showed a bad circuit in 1-2 shift solenoid. gonna try that tomorrow, or maybe tonight.
Based on that info, I wouldn't assume the trans is shot just yet. You probably have a bad 1-2 shift solenoid or the wiring to it is messed up. It really is beneficial to have a scanner that can command the solenoids, then you can check for power at the 1-2 solenoid. If you don't have that option, you can just replace it and see.

My uncle's Silverado was doing the same thing with the 2-3 solenoid and a couple trans shops told him he needed a new trans. Well, my dad put the Tech I (old school truck) and saw there was nothing happening for the 2-3 shift solenoid and replaced it and it's been working fine since.
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