Hard shifts on 7.3 - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 3 (permalink) Old 04-21-2009, 05:08 AM Thread Starter
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Hard shifts on 7.3

Hey yall, my truck shifts really hard and jerks the whole truck if i get on it like gettin on the on ramp to the highway. Is this a bad tranny or something else? Any help is greatly appreciated. Thanks

1996 Ford f-350 7.3l psd Tony Wildman 6 pos chip, 6637 intake, Autometer gauges, 6" silverline aussie stacks

1995 F-Super Duty 5 speed 6637 intake, straight piped
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post #2 of 3 (permalink) Old 04-21-2009, 05:19 AM
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Re: Hard shifts on 7.3

Keep tabs on this thread:
http://powerstrokenation.com/forums/...ad.php?t=29370
Does the Overdrive light flash at all? If so, you should start by scanning it and see what codes come up. If not, then im guessing solenoids or maybe a trans rebuild is lookin like its coming in the near future. Also, I'm guessing your trans fluid isn't low. Hopefully someone else will come along here too for another opinion

1995 F250 SCLB 4X4 Auto - '97 D60/10.5" rear, 4.5" PMF RSK/V's, PMF Trac Bars, Sway Bars, MBRP Exhaust, DP F5, Efuel, RRD Diff Cover, Tymar Intake, Isspro Performaxs/Quad Pod, Recon Cab Lights, 05 Lariat SD Steering Wheel
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post #3 of 3 (permalink) Old 04-21-2009, 07:32 AM
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Re: Hard shifts on 7.3

I was chasing that problem myself. One stock trans, one rebuild, and monsterbox all did the same hard shift. I did loose the solenoid pack on the monster. I changed the accelerator switch, pcm, no luck. In March during live tuning with Jody, I told him about the shift. He saw it on the laptop and changed the shift timing, now it's smooth.

97 CC LB, 3.55'S, H2E, AFE STAGE 2, AFE 4" EXHAUST, 250/200's, IDM MOD, FACTORY TECH MONSTER BOX TRANS, DP TUNER, SRP1, IC, REG RETURN, H2E, STUDS, COMP 910, GAUGES, 6.0 TRANS COOLER $$$$


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