Intermittent acceleration issue stranded - Diesel Bombers



Ford Powerstroke 94-98 7.3L Discussion of 94-98 7.3 Liter Ford Powerstroke Turbo Diesels

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Old 03-19-2017, 01:28 AM
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Default Intermittent acceleration issue stranded

Help! We came from arizona to Boston stranded here with several issues main one I can't seem to figure out... 1996 f350 7.3 5speed 156k
So started when it was cold 2 days ago let it idle and warm up pulled onto the road and it immediately acted as tho it had no gas pedal pump it a few times doesn't fix it, sounds like it wants to stall but doesnt, it eventually comes back. then happened again the next day after i drove for 1hour then went away now it's happening a lot more. It doesnt die and now it can rev but really slow and only up to 1200rpm. If it does it on the highway it will drop my speed to 45mph or less the i can hold the speed, then it goes away I can speed back up. . I thought maybe tps was starting to fail so I changed that didn't fix it. I cleaned the ivs and held it in with a screw driver while pushing pedal that didn't let it Rev, I'm assuming that would mean it is working?

The heat also went out for a few mins. Had to move the truck out of intersection when i started rolling it warmed back up. Haven't been able to check the radiator fluid yet Its sitting in a shop parking lot until tmrw

I'm also having a hissing noise down by my feet primarily when it's cold and I am lightly on the gas goes away when I let off the pedal.

Its very hard to start when cold haven't had a chance to test glow plugs yet.

Thanks for any help...

Everything seems to be falling apart on this ford with only 156k miles.
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Old 03-19-2017, 01:25 PM
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sounds like it could be the ICP sensor
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Old 03-19-2017, 03:15 PM
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Ok I looked it up, found that if the pigtail wire is covered in oil it's going bad or bad? Also that unplugging it is a way to check it. I'll run out and inspect it now. Thanks for the reply

Last edited by Headache7.3; 03-19-2017 at 03:27 PM.
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Old 03-19-2017, 03:23 PM
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you dont need to pull it, just unplug the connector and look in there for oil
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Old 03-19-2017, 05:25 PM
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It's dry inside the plug
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Old 03-20-2017, 11:13 AM
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Drove it to hotel from shop yesterday no issues ran great even hit 45mph +no issues. Started it today let it warm up hit the gas rpms creep slowly up to 2500 and stop no power whatsoever let off gas has violent shake at idle. Let it sit a few mins later it's back to normal.
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Old 03-20-2017, 03:37 PM
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im going to guess ICP, thats how mine acted when it was bad.
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Old 03-20-2017, 03:53 PM
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I unplugged it ran the same if not worse and threw up a code so I plugged it back in. Finally got it to run rough by holding it at 3krpm. I'm getting a cpl people saying fuel issue. I replaced filter and pulled out front tank pump to see if screen was clogged for some reason it didn't have one on it. I took a 1min video, I'm at wot the whole time until it goes over 3k then I feather it around 3k to get it to fall on its face again https://m.youtube.com/watch?v=FJQvxUEElEY
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Old 03-20-2017, 04:07 PM
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I unplugged it ran the same if not worse and threw up a code so I plugged it back in. Finally got it to run rough by holding it at 3krpm. I'm getting a cpl people saying fuel issue. I replaced filter and pulled out front tank pump to see if screen was clogged for some reason it didn't have one on it. I took a 1min video, I'm at wot the whole time until it goes over 3k then I feather it around 3k to get it to fall on its face again
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Old 03-20-2017, 04:08 PM
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Front tank pump
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