Ford service driveability test?
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Elder User
Joined: Feb 2004
Posts: 772
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From: Mount Airy, MD
Ford service driveability test?
Has anyone ever had a driveability test done on their Super Duty. The reason I ask is because I think I might have a slight misfire and am wondering if this test will detect it and let me know which cylinder is the problem. Is a misfire usually caused by a faulty coil?
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
Originally Posted by kenneBF250V10
Has anyone ever had a driveability test done on their Super Duty. The reason I ask is because I think I might have a slight misfire and am wondering if this test will detect it and let me know which cylinder is the problem.
Is a misfire usually caused by a faulty coil?
Elder User
Joined: Dec 2003
Posts: 848
Likes: 3
From: Kokomo
Mine has been acting kinda funny for a while, sometimes it runs great and pulls strong and other times it misses out when I try to get on it, never know when it will do it, hasn't done it in a couple days, thought I got water in a coil and it dryed out, then it was back a couple days later and then gone again. Ran a test on the truck and nothing came back, I don't know what to do....
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
Originally Posted by SMiller
Ran a test on the truck and nothing came back, I don't know what to do....
New User
Joined: Sep 2004
Posts: 18
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If the tech runs a power balance test with the WDS he will most likely see the cylinder that is misfiring. It is pretty evident if you monitor that with the engine under load. There may or may not be misfire codes. I've seen it both ways but the power balance test always shows the misfire. Monitoring the engine under load is the key.
Take care,
Rich
Take care,
Rich
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Joined: Nov 2004
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From: north west new jersey
we have v10's not 8's
Originally Posted by SMiller
Mine has been acting kinda funny for a while, sometimes it runs great and pulls strong and other times it misses out when I try to get on it, never know when it will do it, hasn't done it in a couple days, thought I got water in a coil and it dryed out, then it was back a couple days later and then gone again. Ran a test on the truck and nothing came back, I don't know what to do....
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