shifts hard after new tunes? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 15 (permalink) Old 01-03-2013, 04:09 PM Thread Starter
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shifts hard after new tunes?

Before Xmas I had stage 1 swamps injectors put in. (Which work great) now when ever I'm in it a bit, if it shifts above 2500 Rpms, it feels like the power plateus for a brief moment then, bang into the next gear.

Shifts smooth as can be under 2500. Tunes are from swamps, my last set of tunes was from php.

Any ideas?

I do a lot of highway driving so it isn't really a big deal for now, but would like to get it resolved so I don't brake something if I forget to ease into the throttle

00 F350 cclb former dually
1"shackles, 6" lift, 37" oz, HD headlights, AFE intake, bellowed up pipes,swamps stage 1s, swamps tunes, 5" exhaust, iah, ebpv, foil all deleted,zoodad, pillar guages; boost, Pyro, fuel pressure. MBC,
97 ex cab PS SOLD
04 CCLB 6.0 EDGE J W/A, 4"mbrp Sold
93 idi sold
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post #2 of 15 (permalink) Old 01-03-2013, 04:15 PM
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Re: shifts hard after new tunes?

The faster trannys shift gears, the more they like it. If its just a fast hard shift.. I wouldn't be too worried . If it seems to hesitate to shift and then bangs into gear.. I wouldn't want to run those tunes. Just my opinion

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post #3 of 15 (permalink) Old 01-03-2013, 07:55 PM
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Re: shifts hard after new tunes?

maybe try a bts valve body

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post #4 of 15 (permalink) Old 01-03-2013, 07:56 PM
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Re: shifts hard after new tunes?

Put an upgraded valve body in it. BTS or JW. Really makes a difference.

REBORN 20 Over on 3/2/11- Pics in gallery- 2000 F250, Auto, 38r, Full Force 238cc/100%, TE 17* hpop, DP F5,HI,60T,80E,120R,140A, Studs and 910's with DI PR's, JW VB in 2nd stock tranny, Walbro 392, Bellowed, In-Tank, Pre-Pump, boost fooler, and RR. Air Dog, SS cover, 6.0 TOC,4" straight piped and guages, 6637, coolant filter, 4" Lift on 33's.
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post #5 of 15 (permalink) Old 01-03-2013, 08:13 PM Thread Starter
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Re: shifts hard after new tunes?

Pan gasket needs to be changed, pardon my lack of trans knowledge, is valve body accessible with pan off? Straight forward change?

I ended up getting a new ts chip ( diesel shop said php tunes are burned on a different format) I had contemplated sending that one back to k&t to have tunes burned for the single shot stage ones.

00 F350 cclb former dually
1"shackles, 6" lift, 37" oz, HD headlights, AFE intake, bellowed up pipes,swamps stage 1s, swamps tunes, 5" exhaust, iah, ebpv, foil all deleted,zoodad, pillar guages; boost, Pyro, fuel pressure. MBC,
97 ex cab PS SOLD
04 CCLB 6.0 EDGE J W/A, 4"mbrp Sold
93 idi sold
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post #6 of 15 (permalink) Old 01-03-2013, 08:17 PM
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Re: shifts hard after new tunes?

Yes, drain pan, remove pan, remove filter, remove VB, and reverse it. instructions will have torque specs for you.

REBORN 20 Over on 3/2/11- Pics in gallery- 2000 F250, Auto, 38r, Full Force 238cc/100%, TE 17* hpop, DP F5,HI,60T,80E,120R,140A, Studs and 910's with DI PR's, JW VB in 2nd stock tranny, Walbro 392, Bellowed, In-Tank, Pre-Pump, boost fooler, and RR. Air Dog, SS cover, 6.0 TOC,4" straight piped and guages, 6637, coolant filter, 4" Lift on 33's.
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post #7 of 15 (permalink) Old 01-03-2013, 08:18 PM
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Re: shifts hard after new tunes?

Did you happen to contact your tuner about this first?
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post #8 of 15 (permalink) Old 01-03-2013, 08:39 PM Thread Starter
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Re: shifts hard after new tunes?

Called tuner yesterday, left msg today too. Wasn't sure if they were closed a few days for the holidays. Was kinda antsy so I posted here. I just wanted to try to be informed when I talk to him.

Was just reading on swamps site that their tunes have added line pressure. They say if it shifts to hard they can burn without added lp. Don't really have any experience with this. Wasn't sure if it was just a coincidence, and something in trans is going. Odd how it only happens above 2500d

00 F350 cclb former dually
1"shackles, 6" lift, 37" oz, HD headlights, AFE intake, bellowed up pipes,swamps stage 1s, swamps tunes, 5" exhaust, iah, ebpv, foil all deleted,zoodad, pillar guages; boost, Pyro, fuel pressure. MBC,
97 ex cab PS SOLD
04 CCLB 6.0 EDGE J W/A, 4"mbrp Sold
93 idi sold
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post #9 of 15 (permalink) Old 01-03-2013, 08:43 PM
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Re: shifts hard after new tunes?

Quote:
Originally Posted by richh789 View Post
Was just reading on swamps site that their tunes have added line pressure. They say if it shifts to hard they can burn without added lp. Don't really have any experience with this. Wasn't sure if it was just a coincidence, and something in trans is going. Odd how it only happens above 2500
Because thats when the tunes are calling for more line pressure ....
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post #10 of 15 (permalink) Old 01-03-2013, 09:50 PM
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Re: shifts hard after new tunes?

Quote:
Originally Posted by richh789 View Post
Pan gasket needs to be changed, pardon my lack of trans knowledge, is valve body accessible with pan off? Straight forward change?

I ended up getting a new ts chip ( diesel shop said php tunes are burned on a different format) I had contemplated sending that one back to k&t to have tunes burned for the single shot stage ones.
http://brianstruckshop.com/docs/BTS%...stallation.pdf

2000 f350 drw, grages, 4" down pipe, 4" dp back , FRx, 6637 filter, ccv kit, PHP tuner
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