HELP no throttle(power) after deceleration !! - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 01-03-2008, 02:48 PM Thread Starter
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HELP no throttle(power) after deceleration !!

This is weird the check engine light comes on and the truck will not accelerate , it only happens after letting of of the gas pedal ( when decelerating) !!

Then the light goes off and the truck acts fine ?? And then it does it again ?
I scanned it and it has no check engine light ? 99 7.3 powerstrock Automatic.. 2wheel drive truck has 200k miles

Last edited by Davepnola; 01-03-2008 at 04:28 PM.
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post #2 of 11 Old 01-03-2008, 02:57 PM
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Is it cold when it does it? The EBPV may be sticking. Mine acts wierd sometimes and does what you describe. The EBPV act normal for a few minutes, then goes crazy and stays on even when trying to accelerate. Do you hear a hissing sound coming fromunder the hood?

Btw: I moved this to a place that will get better attention for you.

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post #3 of 11 Old 01-03-2008, 03:00 PM
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not sure where i saw the ford TSB but it pertained to no power after hard accel and then return to coast. if i find it I'll forward it to ya, meanwhile look in the tech section of this site and also superdutydiesel.com or just google "ford technical service bulletins"

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post #4 of 11 Old 01-03-2008, 03:12 PM
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tried to link the TSB, no luck. the number is 04-24-11. and the new accel pedal part # 1C3Z-9F836-BA. hope that helps

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post #5 of 11 Old 01-03-2008, 04:16 PM Thread Starter
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No mine makes no funny noises or hisses . It just acts like that ihas no throttle response, but idles fine and the check engine light comes on. I scanned it does not have any code ? Could CPS do this , I read sometine CPS causes timing caurelation problem and returns then engine to idle ?? Is that true ? I have and edge power programmer on another truck I can pull it see if it will show the will the problem occurs. Does the edge show ignition advance ?? Thanks Also does this truck have a throttle cable ? What is the switch under the gas pedal ??
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post #6 of 11 Old 01-03-2008, 04:43 PM Thread Starter
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My truck is 99 the TSB says 2001-2003 , but this is exactly what is happing to the truck besides no code P0123 ? I thought this truck is drive by wire ( no throttle cable) If that is the case my first response was this switch under the gas pedal . Thanks
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post #7 of 11 Old 01-03-2008, 04:46 PM
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Yep its called the tps or throttle position sensor.

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post #8 of 11 Old 01-03-2008, 04:50 PM
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Here is a link to buy the sensor. If you try to buy from ford you have to buy the whole pedal assembly.http://www.dormanproducts.com/docume...s_Sensors2.pdf

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting


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post #9 of 11 Old 01-03-2008, 05:02 PM Thread Starter
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Thanks I will try that , I thought that was the problem, because I can pedel the pedal fast it would catch sometimes.
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post #10 of 11 Old 01-03-2008, 05:04 PM
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Yeah not sure if thats it kinda sounds like it is, but at least you know where to get the sensor cheap

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting


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