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ENGINE LACKS POWER


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SUPER
New User

Apr 30, 2013, 1:49 PM

Post #1 of 2 (1317 views)
ENGINE LACKS POWER Sign In

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


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 30, 2013, 2:12 PM

Post #2 of 2 (1293 views)
Re: ENGINE LACKS POWER Sign In

You have lean codes. Look for the vacuum leak, assuming you have already verified fuel pressure.



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