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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 08-08-2009
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Please HELP!

My truck is missing badly and I have no clue. There is no CEL. I cleaned the MAS and there was no change. Any ideas?
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Old 08-08-2009
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Plugs and wires? fuel filter? How does the air filter look? When does it do it? Driving, Idle? Is it all the time, does it seem to be only at a certain rpm?
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Old 08-08-2009
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Quote:
Originally Posted by 07rangersport View Post
Plugs and wires? fuel filter? How does the air filter look? When does it do it? Driving, Idle? Is it all the time, does it seem to be only at a certain rpm?
New air filter, miss is mainly when you lug it down or if you try to start out in 2nd gear. If you rev it up in 3rd, gear it gives up and starts missing badly @ 3200 rpms.
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Old 08-08-2009
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Vacuum lines?
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Old 08-08-2009
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coil maybe?
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Old 08-08-2009
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try injectors no joke just worked on 2 98's at work missing and it was injectors
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Old 08-08-2009
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Quote:
Originally Posted by 07rangersport View Post
Plugs and wires? fuel filter? How does the air filter look? When does it do it? Driving, Idle? Is it all the time, does it seem to be only at a certain rpm?
do what he said, check plugs wires etc... if they look bad obviously replace them.. wouldnt hurt to do a nice little overall tune up
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Old 08-08-2009
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ground wire?
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Old 08-08-2009
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ground wire?
You're my brother
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  #10  
Old 08-08-2009
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i bet its injectors, sounds like what my truck did, turned out the #5 injector shorted or something, and it was a 2000 3.0v6
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Old 08-08-2009
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Found One

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Originally Posted by seed60 View Post
Vacuum lines?
Found a leak in one of the small lines going to the DPFE. It's running a lot better but still has a little miss, but at least I can drive it.

I have a metal DPFE and I noticed when I pulled the vacuum lines off it there was corrosin and it looked pretty nasty on those nipples. Do you think I need a new DPFE? If so, what do they cost?
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  #12  
Old 08-08-2009
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I bought one for a 4.0 a couple weeks ago for about $55.

I remember something about the metal DPFEs shorting out,
and to replace them with a plastic one if possible........
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  #13  
Old 08-08-2009
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I bought one last year sometime, it was about $50 or $55. At least in theory it should throw a code if it goes wrong.
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