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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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  #26  
Old 10-24-2009
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Quote:
Originally Posted by Runnin'OnEmpty View Post
Brian, turn the radiator cap to release the pressure, leave it loose
and drive it that way. See if the misfire continues. If the misfire
is 'fixed' with a loose radiator cap, then the lower intake gasket is faulty.......
Well I took the truck for a ride. Drove down to the store to get it warm. After that I drove for a few miles a varying speeds and I didn't notice any miss. Although it didn't seem to have much for power. Have to assume that its robbing power because of the gasket being blown. I geuss I have something to do instead of watching football all day. Hope this goes as easy as the intake gasket on the 347 in my drag car. Really wish it was that easy too. Thanks Brian
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  #27  
Old 10-25-2009
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Well took the truck down to get parts and I left the cap loose to see what would happen. Well after a little bit the miss came back and know I am really stumped. About ready to pull the top end off and just start replacing parts, but that gets really spendy. I this miss normal with the cap loose or am I just getting to much in my head?
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  #28  
Old 10-25-2009
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the injectors are supposed to make a ticking sound. that lets you know they are working.
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  #29  
Old 10-25-2009
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The only one that wasnt making that noise was 5. Well at least it wasnt as loud as the rest... Have to look some more.
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  #30  
Old 10-25-2009
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get a fuel injector cleaner service done and see if that works. if not, then back to the old chalk board.
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  #31  
Old 10-25-2009
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Can I pull the injectors to clean then and install new O rings.
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  #32  
Old 10-25-2009
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If you remove the intake manifold you can do it.
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  #33  
Old 11-05-2009
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Well I finally got the time to pull the upper intake and sniff around a bit. When I pulled the fuel rail I had alot of pressure on #5 injector and the other two were not pressurized. Kinda weird to me.. Pulled the injectors and they were pretty nasty lookin. I cleaned them with injector cleaner and installed new o-rings. When I installed them I switched 4 and 5 around. Reinstalled the uper intake and went for a cruise.The truck ran really nice for awhile then started to miss again. I put the OBD 2 reader on it and it says PO304. Yaaah Hooo. I found the problem. I have a bad injector and will be picking one up this weekend. Hopefully this does it and I can drive off into the sunset. Thanks Brian
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  #34  
Old 11-06-2009
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Brian, how much of a difference did you find when you cleaned out the injectors? Since I'm now over 104K miles, I'm thinking maybe this is something I would like do for my truck.
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  #35  
Old 11-06-2009
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I found that the intake and injectors really dirty. I think I am going to install a set of injectors. Instead of just putting in te one. Might be over kill but to me its peace of mind. I have seen injectors go for a real long time and I have seen them fail right out of the box. Not sure if I would mess with them if they are working though. If I was racing or off roading the truck all the time I probably look at it a little different. The call is really in your hands on this one.
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  #36  
Old 11-08-2009
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Bunnell,
Had you ever cleaned your injectors? I mean Gumout, Seafoam, anything like that in the tank? I am just wondering how bad mine might be at 154k. I'm glad you found the issue. My problem turned out to be a plug in #3.
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  #37  
Old 11-08-2009
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I have ran Seafoam through the truck shortly after I bought the truck. Thats about when the miss started. Not sure if I caused the problem or I just uncovered it. I was wondering if I could clean the injector thats bad but I dont know if I can get it apart. like I said If they are ok I wouldn't mess with them. But on the other hand if you have the time and space to open it up might not hurt. This would give you the chance to clean the intake too. Mine was nasty dirty.
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  #38  
Old 11-10-2009
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How well does "Motor Flush" work? Has anyone seen research on this product? How wise is it to release these deposits? I used it once in another truck years ago and had no apparent problems. No apparent benefits either though.

Edit:
Sorry, posted to wrong thread. Oops...

Last edited by Daily Driver; 11-10-2009 at 01:35 AM. Reason: incorrect post
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  #39  
Old 11-25-2009
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Hey I finally installed the new injector and the truck runs great. Thanks for all the help and tips to get to the bottom of this. I was almost ready to take it the shop and I saved a boat load of cash doing this myself. Again thank you all very much! Brian
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