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2001 Ford E-350 doesn't run smooth between 50-60 mph


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trombo31
New User

Sep 9, 2011, 7:02 AM

Post #1 of 5 (1459 views)
2001 Ford E-350 doesn't run smooth between 50-60 mph Sign In

I have a 2001 Ford e-350 superduty extended passenger van (5.4 liter/v8) with about 90,000 miles that is having some issues. This summer we went on an extended trip across country and the van has had oil leak issues, but these issues seemed more severe at certain points of the trip. I added oil as needed. We were also carrying a heavy load with a full van. About half-way home the van started sputtering when at 50-60 mph and in lower gears. When going up hills or accelerating it works fine, but when driving on flat roads it seems to have little power. I have read that it could possibly be a valve issue, but am unsure where to start.

Can anyone give me an opinion on what might be causing this?

Thanks!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 9, 2011, 9:14 AM

Post #2 of 5 (1436 views)
Re: 2001 Ford E-350 doesn't run smooth between 50-60 mph Sign In

Have the computer scanned for codes first and post them here.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



trombo31
New User

Sep 9, 2011, 11:32 AM

Post #3 of 5 (1429 views)
Re: 2001 Ford E-350 doesn't run smooth between 50-60 mph Sign In

I had the codes checked and the only thing that came up was P0306 - 6th cylinder misfire.

I am going to check this and see if there is something up with the plug, but I have a hard time believing it is a cylinder issue if the van runs fine at faster speeds and slower speeds.

Thanks!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 9, 2011, 11:42 AM

Post #4 of 5 (1425 views)
Re: 2001 Ford E-350 doesn't run smooth between 50-60 mph Sign In

You need to find out what's causing the misfire and resolve that. That's likely your whole problem.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



trombo31
New User

Sep 9, 2011, 11:47 AM

Post #5 of 5 (1421 views)
Re: 2001 Ford E-350 doesn't run smooth between 50-60 mph Sign In

I will do that first. Thanks for your help!






 
 
 






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