rough idle
Thread Starter
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Senior User
Joined: Sep 2010
Posts: 152
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From: State College, PA
rough idle
I have a 1996 F250 diesel that just started idling very poorly. I just had the camshaft position sensor replaced last week and it was driving fine until yesterday. It drives fine at normal driving speeds, 20mph on up, but when you are driving slowly or come to a complete stop, the whole truck shakes and sounds like its going to shut off. Any ideas?
Thread Starter
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Senior User
Joined: Sep 2010
Posts: 152
Likes: 0
From: State College, PA
I have a mechanic who I usually take vehicles to, but I took the truck to the Ford dealership this time because it was closer to me than my mechanic. They told me the problem was with the injectors and that the truck was only running on 4 cylinders. They said they would start by replacing both wiring harnesses and the gaskets ($420) and if that didn't solve the issue replace the injectors ($1100). I'm not a mechanic, but $1600 seems incredibly expensive to me. I plan on taking it to my mechanic for a second quote, but does Ford's quote seem realistic?
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I have a mechanic who I usually take vehicles to, but I took the truck to the Ford dealership this time because it was closer to me than my mechanic. They told me the problem was with the injectors and that the truck was only running on 4 cylinders. They said they would start by replacing both wiring harnesses and the gaskets ($420) and if that didn't solve the issue replace the injectors ($1100). I'm not a mechanic, but $1600 seems incredibly expensive to me. I plan on taking it to my mechanic for a second quote, but does Ford's quote seem realistic?
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
Yes, check the idm, anyone with a super duty or another obs you can borrow their idm and try it? Sounds like maybe the idm is shutting down a bank. First I'd check the vc harnesses and then the idm. Most likely not the injectors imo.
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
The harnesses under the valve covers are pretty common. You should be able to get a kit with all of it for a decent price. I had to replace one side on mine last year. Definately stay away from the dealership.
