No response from accelerator - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 7 (permalink) Old Yesterday, 09:36 AM Thread Starter
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No response from accelerator

Could use a little help with my 01 f350. Sometimes I get no response from my gas pedal at idle and have to push the pedal a couple times before it will rev the engine. This has also happened a few times when I let off the pedal at slow speeds. While it’s happening the check engine light will come on and once the gas pedal starts working properly, it will go off. Thanks for any help.
Thanks.

01 F-350 7.3 crewcab,longbed, Lariat, 4" DPPI 4 inch exhaust, severe air intake, Sonnax/Tricumulator, Prodigy brake controller and Rhino bedliner.
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post #2 of 7 (permalink) Old Yesterday, 12:51 PM
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A scan tool will tell you what's wrong, but most likely, your Idle Validation Switch on the Accelerator Pedal assembly is sticking. The pedal assembly comes out easily, and has two electrical connectors on it. The connector with 2 pins goes to the IVS and the 3-pin connector goes to the AP Position Sensor. I would pull the assembly out and hit the IVS (and the APPS -can't hurt) with some electrical contact cleaner. Reinstall and see if that fixes up your problem.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #3 of 7 (permalink) Old Yesterday, 03:07 PM Thread Starter
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Thanks, Iíll look that way. I did check and it shows no codes were thrown.

01 F-350 7.3 crewcab,longbed, Lariat, 4" DPPI 4 inch exhaust, severe air intake, Sonnax/Tricumulator, Prodigy brake controller and Rhino bedliner.
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post #4 of 7 (permalink) Old Yesterday, 04:17 PM
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I did check and it shows no codes were thrown.
What did you use for a code reader? The generic ones won't work on your truck. It takes a PSD capable scan tool. If the Check Engine Light was on, there WILL be a code stored.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #5 of 7 (permalink) Old Yesterday, 04:44 PM Thread Starter
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Oh. Okay, Iíll see if I can find one. I did take off the pedal assembly and I have only one five pin connector on it. I cleaned the contacts and see if that cures the problem. Thanks.

01 F-350 7.3 crewcab,longbed, Lariat, 4" DPPI 4 inch exhaust, severe air intake, Sonnax/Tricumulator, Prodigy brake controller and Rhino bedliner.
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post #6 of 7 (permalink) Old Yesterday, 07:30 PM
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I did take off the pedal assembly and I have only one five pin connector on it.
Hmm, I could have sworn the '01 still had the pedal with two connectors.
Quite a few guys use AutoEnginuity that runs on a laptop. About $360 for the Ford Enhanced package which you'll need.
What needs to be cleaned is the pivot point on the actual switch, as opposed to the connector pins.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #7 of 7 (permalink) Old Today, 09:33 AM Thread Starter
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Again thanks for the info. Iíll take it back off and clean the pivot point.

01 F-350 7.3 crewcab,longbed, Lariat, 4" DPPI 4 inch exhaust, severe air intake, Sonnax/Tricumulator, Prodigy brake controller and Rhino bedliner.
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