Dead spot in pedal - Ford Powerstroke Diesel Forum

 
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post #1 of 7 Old 08-23-2013, 04:25 AM Thread Starter
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Dead spot in pedal

Hey guys I'm experiencing a "dead" spot in my acceleration pedal. But it only Happens when the truck is in o/d with the converter locked. The first 1/4 of pedal feels normal. After that it dies. Could it be my pedal or what? Oh and I doesnt do it all the time just every now and then. Thanks for any help guys.

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99.5 super duty, TS chip cranking up 140. 4 inch straight pipe, cold air intake, x wheel, zoo dad, mildly built trans. Running 35s- sold

04 HD F-350 Studded and deleted, SCT with Gearhead SRL++, Edge CTS
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post #2 of 7 Old 08-23-2013, 06:08 AM
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Is this dead spot like it just doesn't accelerate more or the truck acts like you let off?

There is a sensor on the pedal that when it goes bad it'll cause the PCM to see 0% throttle pedal.

Mine scared me, it would let me take off, then the engine would drop to idle. Took that happening 1 time while crossing an intersection to get it fixed. Apparently some people have luck cleaning it. I just replaced it with a junkyard part.

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post #3 of 7 Old 08-23-2013, 06:14 AM Thread Starter
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Its like it works full pedal while the tc isn't locked but once it locks in o/d its like the truck doesn't accelerate it doesn't die like idle but still has like 25% power. I have a spare pedal at home I'm gonna have to try before I get stuck in an intersection.

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99.5 super duty, TS chip cranking up 140. 4 inch straight pipe, cold air intake, x wheel, zoo dad, mildly built trans. Running 35s- sold

04 HD F-350 Studded and deleted, SCT with Gearhead SRL++, Edge CTS
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post #4 of 7 Old 08-24-2013, 03:23 AM Thread Starter
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Morning bump

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99.5 super duty, TS chip cranking up 140. 4 inch straight pipe, cold air intake, x wheel, zoo dad, mildly built trans. Running 35s- sold

04 HD F-350 Studded and deleted, SCT with Gearhead SRL++, Edge CTS
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post #5 of 7 Old 09-17-2013, 11:00 AM
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Had the same problem.. Replaced the pedal assembly with a new ford unit and fixed dead spot and more power

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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post #6 of 7 Old 10-27-2013, 06:25 PM
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I no this is an older post but mine is doin this also just when i pit my chip in the 140 spot did u fix ur prob and wat fixed it?




E99 f350 cclb 4x4 6speed
4in tb 6in tip
Ts chip
Ccv mod
Diy intake
Epbv delete
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post #7 of 7 Old 10-28-2013, 05:32 AM
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Not sure why it's doing it only in the 140 tune but mine was cutting in&out couple times a day.. Just replaced it with a new ford unit and haven't had any issues

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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