injector proplems?!? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-11-2008
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injector proplems?!?

has anybody had fuel injector problems and if so what were your symptoms and what did you do to fix the problem...i have a rough idle and a missfire in 4 and 6 and i have tried alot of things to fix the problem but have not tried changing the fuel injectors yet..
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Old 03-11-2008
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what have you tried already?
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Old 03-11-2008
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i have tried changing the plugs, wires, coil pack, and fuel filter, messing with the idle bolt and fuel injector cleaner
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Old 03-11-2008
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Seafoam That Biatch!
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Old 03-11-2008
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Check your compression.
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Old 03-11-2008
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Check the plugs - if 2 are dry and one is wet, the wet plug has a bad injector (stuck open).
If two in the bank are wet and one is dry, the dry one is not opening.

Try using a long screwdriver as a "stethescope" and listen to be sure it is opening.
If needed, I have some already cleaned - singles and sets.
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Old 03-11-2008
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I had two injectors go. You've done everything I did, check plugs and wires, injector cleaner, etc. I finally just had to replace them. One was a electronic failure and the other was just totally clogged. Hope this helps you out. FYI, a Haynes manual is a definite help if one is under the intake manifold, and if you are in there I recommend a new plenum gasket since you're in there as well.
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Old 03-12-2008
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Quote:
Originally Posted by Hot Wheels View Post
I had two injectors go. You've done everything I did, check plugs and wires, injector cleaner, etc. I finally just had to replace them. One was a electronic failure and the other was just totally clogged. Hope this helps you out. FYI, a Haynes manual is a definite help if one is under the intake manifold, and if you are in there I recommend a new plenum gasket since you're in there as well.
thanx hot wheels..will do
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Old 03-12-2008
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I've been able to reuse plenum gaskets 4-5x with no issues, but it doesn't hurt to have one on hand. If you don't use it you can return them (normally). The gasket is coated with a release agent, and unless it sticks/tears, you'll be fine...
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Old 03-12-2008
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I just figured I was in there and why take a chance you know? Especially since previous owners didn't take the greatest care in maintaining the truck.
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