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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

this may sound silly

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Old Dec 7, 2015 | 12:06 PM
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this may sound silly

but I am still running down a lack of power problem on my 93 (89 motor) efi 460...I checked the fuel pressure and the regulator yesterday and they check out I checked the spark it checks out I pulled the injector connection off the cylinders while it was running and 2 of them did not effect the motor...


I am going to replace the injectors, is there any tips or tricks to get them out I have a donor that seems to keep messing them up when I pulled them...
 
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Old Dec 7, 2015 | 12:07 PM
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it has a slight miss and just lacks low end power...no codes are being thrown
 
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Old Dec 7, 2015 | 01:36 PM
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You just remove the fuel rail and then pull the injectors out. You should get new O-rings and lube them with silicone before pushing the injector back into the hole.
 
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Old Dec 7, 2015 | 08:51 PM
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Did you check for power at those injector connectors to double check that it's the injector? Just a thought.
 
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Old Dec 8, 2015 | 08:23 AM
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Yeah got power at the injectors and also when I shut the key off the fuel pressure drops fast...like right now
 
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Old Dec 8, 2015 | 09:25 AM
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That would be consistent with leaky injectors...
 
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Old Dec 8, 2015 | 10:12 AM
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I hope this cures the problem because I am at my wits end with this truck
 
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Old Dec 8, 2015 | 10:14 AM
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Might want to check the fuel pressure regulator as well while you have the rail apart.
 
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Old Dec 8, 2015 | 10:19 AM
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Originally Posted by Grems4ever
Might want to check the fuel pressure regulator as well while you have the rail apart.

it is working, however I am going to change it because it will be apart and I have a new one already
 
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Old Dec 8, 2015 | 10:20 AM
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Good plan.
 
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