no luck
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Freshman User
Joined: Mar 2004
Posts: 48
Likes: 0
no luck
it seems no one whants anything to do with working on my E350 EXT VAN 7.3 alls i get is wasting my time with leaving it all day to get a call at 430 pm with some lame excuse we cant get it on the lift or we cant do diesel so ill do it myself , in the cold. it seems like its bucking at about 20-40 mph when i let off the peddle,idleing down and up i unpluged the ebpv last year to end the problem that came with it it ran great no problems. i am getting a code for this so i plugged the ebpv back up and its so bad u cant get any power unless its warmed up for at least 20 or so minutes of driving and still have a terriable idleing bucking of the motor it sounds like the driveshafts ganna fall out, the van has 243000 miles and this van is my livelyhood i need it fixed could it b that ebpv is stuck closed is there anything i can spay in the pipes to clean the valve up i always put diele clean in so its not gelling im stumped seems like every winter i have this problem but this year is the worst help please
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
From memory, there is an idle verification switch on the throttle pedal.
I remember reading that if the switch is adjusted wrong, low speed bucking is the result.
Sounds like the tube to your exhaust back pressure sensor may be stopped up.
That would send a signal to the computer that the back pressure was low and make the valve close that much harder.
Mine was stopped up, and I removed the sensor, carefully since the sensor is about 120 dollars.
Then I used compressed air and brake clean to clean the tube out.
Spray in a bit of brake clean and let it soak, hit it with shop air.
Repeat till you hear the air through the exhaust pipe.
Then replace the sensor and plug it back in.
So far it has been working like it should.
I remember reading that if the switch is adjusted wrong, low speed bucking is the result.
Sounds like the tube to your exhaust back pressure sensor may be stopped up.
That would send a signal to the computer that the back pressure was low and make the valve close that much harder.
Mine was stopped up, and I removed the sensor, carefully since the sensor is about 120 dollars.
Then I used compressed air and brake clean to clean the tube out.
Spray in a bit of brake clean and let it soak, hit it with shop air.
Repeat till you hear the air through the exhaust pipe.
Then replace the sensor and plug it back in.
So far it has been working like it should.
Thread Starter
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Freshman User
Joined: Mar 2004
Posts: 48
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thanks dave , were is the ebpv sensor located i have a econoline van and getting to anything on top of the motor is a nightmare to unplug the ebpv i had to take off the red flexable pipe that goes into the turbo i couldnt see were the other end of the plug and were it went do u know?
Hotshot
Joined: Feb 2009
Posts: 10,410
Likes: 77
From: Plankinton, SD
I'd unplug the ebpv and not worry about the code or the pipe. If you have never changed the cam sensor, always worth a try to do that. They do some crazy crap.
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Senior User
Joined: Dec 2009
Posts: 120
Likes: 0
From: AUSTIN TX
the tube we are talking about runs from the passenger side of the exhaust front end and runs to the the exhaust back pressure sensor just back of and left side of the high pressure pump reservoir
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