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Need help with TPS adjust

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Old Oct 14, 2007 | 02:11 PM
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Unhappy Need help with TPS adjust

07 5.4 stumbles/ surges and farts out...

Been looking at this TPS all day and trying to find info out there on how to adjust it. I found some info about adjusting the voltage between a green and red wire or - and return sig.

Sounds easy BUT mine has 4 wires -a pink, a grey, and 2 yellow/ white trace.

I took the voltage between the pink and grey and got 4.1 volts. I assumed this was the ref. I then read from grey to each yellow. one yello had 0 and the other had .1

Am I looking at the TPS? Its the only one right on the throttle body with security screws -right?
 
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Old Oct 14, 2007 | 03:07 PM
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I don't know how this got into the 09 forum. Could a mod move this to the 04-08?
 
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Old Oct 14, 2007 | 03:41 PM
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From: Greenvile, SC
Are you getting any Check engine lights with this?

(One of the '09 Forum Mods should be around shortly to move this..)

On edit: I'm curious....this TPS adjustment, is this something a dealer told you to try?
 

Last edited by FTE Trigger; Oct 14, 2007 at 03:45 PM.
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Old Oct 14, 2007 | 05:04 PM
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no, no engine lights. Unfortunately I can't rely on my particular dealer. Just my own research -I have set TPS on other vehicles...
 
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Old Oct 15, 2007 | 08:53 AM
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ttt.......
 
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Old Oct 15, 2007 | 10:16 AM
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The 5.4l 3v Doesn't Have A Tps Like The Older Stuff. The Tps Is Also The Iac, And The Throttle Control. Adjusting The Voltage Might Not Be A Good Thing.
 
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Old Oct 15, 2007 | 11:29 AM
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OK thanks.

I guess I'm back to square one. Why does my truck stumble/ stall/ surge...
 
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Old Oct 15, 2007 | 04:34 PM
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It must still be under warranty why not just have the dealer fix it, it is not to hard to really screw up these new rigs???
 
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Old Oct 15, 2007 | 06:23 PM
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every time I bring it there it comes home with PROBLEMS. Seriously I brought the thing there to have the bedliner sprayed and the DVD system didn't work when I picked it up. Thats not the only thing... the f*d up a bunch of stuff on my new baby lawsuit pending...

I have to find a dealer I trust...
 
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Old Oct 16, 2007 | 09:46 AM
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The idle stumble/stalling is a common problem with the 5.4L's. Mine did the same thing. I know you hate your dealer, but try to find another one, because it does need repair. They will probably reflash the PCM, and possibly replace the throttle body with a new one. They did this to my 2004 5.4L because I had the same problem...and it 100% solved it. Hope this helps.

Mr86GT
 
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Old Oct 16, 2007 | 10:08 AM
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Dang -thatmeans I have to have these clowns climbing all over my truck...

Dropping crud into my intake....

I can flash my own PCM right? If I throw on a super charger it voids all that intake crap right?
 
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Old Oct 16, 2007 | 01:24 PM
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Originally Posted by chucks_net
Dang -thatmeans I have to have these clowns climbing all over my truck...

Dropping crud into my intake....

I can flash my own PCM right? If I throw on a super charger it voids all that intake crap right?

No, you cannot flash your own PCM unless you "know" someone at a Ford dealer willing to do it for you on the side. The software update must be downloaded from Ford, and only they can flash it.

And yes, adding a blower can void your warranty UNLESS (this is my understanding)....you buy the Ford blower...AND have it installed by a Ford dealer....then I THINK you can retain your 3/36k warranty. Might wanna check on that tho. If anyone knows, please chime in.

Mr86GT
 
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Old Oct 16, 2007 | 05:16 PM
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From: Greenvile, SC
Originally Posted by chucks_net
... If I throw on a super charger it voids all that intake crap right?
Your towing cap. will drop getting a SC. Also, a Roush SC still retains the 3/36k warranty.
 
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Old Oct 17, 2007 | 06:37 PM
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I just had a new computer installed in my Jeep, and the garage mech flashed it. He's not a dealer, just a garage. I think those little boxes to do it are over a grand.
 
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