Cascadia 125 DD16 Accelerator Pedal not working randomly

Buru013 · Nov 20, 2022

maxpaynecu said: ↑

Hello guys i have a 2014 FREIGHTLINER CASCADIA 125 with a DD16 engine that it was parked 1 month until today, so i went to parking lot to pick up a load and i realized that the truck start but it wont accelerate at all i had to cancel the load because of the issue ... i have this codes on the dash SPN-111 FMI 18 Engine Coolant Level 1 and SPN-2623 FMI 8 Accelerator Pedal #1 Channel 2 and SPN-3510 FMI 4 Sensor supply voltage 2 then i googled it and i ended buying the accelerator pedal with the positioning sensor included at the dealership and replaced it but still not working so after cutting the power with the switch under the driver seat and giving it power again i realized that sometimes randomly after i switch the power ON the yellow check engine light and def service yellow light stays on and the problem starts happening no acceleration at all .. then i shut down the truck and i cut the power off with the switch and give it power again with the switch and the yellow lights stays off so truck works as normal the problem looks to happen randomly ... the coolant LVL its ok the tank is full
Then doing a research on my ELD it shows that the problem started 1 week before i parked the truck last month so i worked with that problem a week now that i have realized about having that problem i don't know if i should go on the road again like that or no .....

any suggestion is appreciated thanks to all of you who take time to read and answer something
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Hey bro, if you have found the problem can you please reply back with the solution cause I'm having the same situation. Every day I turn on the truck it gives me the same codes and after a while, could be 20 mins or 2 hrs, it turns off the check engine light and start working again. I have change the accelerator pedal, engine harness, tried with 2 different cpc that a friend of mine gave me and nothing and it is driving me crazy.

armo · Nov 21, 2022

the processor of cpc4 needs re soldering i guess

Highway_bully · Feb 3, 2025

Having the same problem. No codes, already changed the pedal and nothing. Any advice?

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Cascadia 125 DD16 Accelerator Pedal not working randomly

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