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SUPER
New User
Apr 30, 2013, 1:49 PM
Post #1 of 2
(1308 views)
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ENGINE LACKS POWER
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2005 FORD 250 SUPER DUTY 5.4L V8 183000 MI.THE TRUCK STARTS BUT IT RUNS ROUGH. IT LOSES POWER WHILE DRIVING,I HAVE TO PULL OVER & WAIT FOR MINUTE & IT REGAINS POWER FOR ABOUT 1 MILE & LOSES POWER AGAIN.THE ENGINE DOES NOT STOP, THE ACCELERATOR HAS NO RESPONSE. I HAVE REPLACED BOTH CATS & THE 4 OX. SENSORS,THE MAF,THE FUEL PUMP,4 COILS, NEW PLUGS, FUEL FILTER,& AIR FILTER, ALSO THE TPS. I HAD THE FUELRAIL OFF, SPRAYED CARB CLEANER ON THE INJECT0RS & BLEW THEM OUT. I REPLACED # 4 INJECTOR & THE SPARKPLUG. STILL HAVING THE SAME SYMPTOMS. THE CODES ARE P0305, P0304,P0355,P0300,P2197,P0174, P0171
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 30, 2013, 2:12 PM
Post #2 of 2
(1284 views)
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Re: ENGINE LACKS POWER
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You have lean codes. Look for the vacuum leak, assuming you have already verified fuel pressure.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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