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Diesel Mechanic
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Hi everyone. I'm a diesel mechanic working out of Tampa Bay Florida. I recently did an engine swap on a 2007 International Vac truck. It's a 7400 Maxxforce DT. Everything has gone well, except for one little problem that I cannot for the life of me figure out. I don't have any throttle response. Cruise control works and the engine idle up on the front reel works; both of which will increase and decrease my RPM's, but the pedal does nothing. I've had it hooked up to the computer, no codes, and I can see on the computer that the ECM is reading the pedal. Anyone got any ideas?

I've recently discovered that if I activate the cruise control and rev up the engine just one notch and then turn the cruise control off that the pedal begins to work. Now, I don't even have to turn off the cruise control as the pedal will respond with it on or off ONCE it has been activated initially. However, once I shut the truck off and restart it, the pedal has no response until the cruise control is again activated.
 

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Hi everyone. I'm a diesel mechanic working out of Tampa Bay Florida. I recently did an engine swap on a 2007 International Vac truck. It's a 7400 Maxxforce DT. Everything has gone well, except for one little problem that I cannot for the life of me figure out. I don't have any throttle response. Cruise control works and the engine idle up on the front reel works; both of which will increase and decrease my RPM's, but the pedal does nothing. I've had it hooked up to the computer, no codes, and I can see on the computer that the ECM is reading the pedal. Anyone got any ideas?

I've recently discovered that if I activate the cruise control and rev up the engine just one notch and then turn the cruise control off that the pedal begins to work. Now, I don't even have to turn off the cruise control as the pedal will respond with it on or off ONCE it has been activated initially. However, once I shut the truck off and restart it, the pedal has no response until the cruise control is again activated.
I have the exact same problem spend 4 days on truck dealer has no idea ether what you find
 

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Connect to the j1938 and check if the pedal is showing 3 different/offset resistance signals and idle switch. One of them being intermittent can cause this. If testing with another pedal still shows the same then a new splice harness may need to be done from the pcm to the pedal.
 

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Connect to the j1938 and check if the pedal is showing 3 different/offset resistance signals and idle switch. One of them being intermittent can cause this. If testing with another pedal still shows the same then a new splice harness may need to be done from the pcm to the pedal.
thanks
 

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2006 F250 6.0 Lariat CCSB
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Did you get this fixed?
You are not getting idle verification -- the pedal will not respond until the ECM see the idle verification -- this could be a bad pedal, improper adjustment , or a broken wire
The testing software should if idle verification has occurred or not
 
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