2004 f250 code p1000 & p0353
Asked by jettyjagger Nov 06, 2017 at 02:47 PM about the 2004 Ford F-250 Super Duty Lariat Extended Cab LB 4WD
Question type: Maintenance & Repair
I just bought this 2004 F250 Super Duty Lariat 4 x 4
it has a loss of power after doing spark & plugs .
P0353 , p1000 code still having loss of power
6 Answers
My guess is a problem coil. Double check all the coil connections.
jettyjagger answered 7 years ago
yes , I did even switch to see if code would follow. But I did find a hole in the manafoild, weld it till new one comes in but still no power and code is still pooping up
enginecreator answered 7 years ago
And make sure they (spark plugs) are gapped correctly. If all looks good you need to know which cylinders are misfiring, which means you will need to test. I would do as said above and make sure all plug wire and coil wires and fuel injection wire connections are good and those wires did not get broken. Low fuel pressure or a dirty or loose connection on the fuel injectors can cause misfiring. If your in a area where humidity is a problem the coils can get this humidity in them if cracked case so check for that too, and I would pull each connector from electrical connections to spark plug boots to apply dielectric grease in connection while checking them to make sure they are tight, this will prevent cross-firing/misfiring by the spark plug wires and keep moisture out of all those electrical connections. I have known of the coil cases cracking (mostly due to heat or age of plastic). You may need to remove and check all sides, if cracked replace it. Sounds like it started after the plugs were installed, so I would double check your work and all electrical connections that may have came loose.
jettyjagger answered 7 years ago
Truck starts right up and drives , But I am lossing power when driving bucks when asked to go up hills or when I am at a stop and it gets going then around 25 it bucks and skips . I have checked all plugs and wires. I am getting to already hate this truck as am losing
SalvagedRover answered 6 years ago
You have a misfire. a P03xx code is a misfire, generally the last number (P0301-8) is the cylinder with the culprit coil. You can always unplug coils one by one to see if it gets worse or stays the same (staying the same would indicate THAT coil you're on is the culprit). You can get a set of chinese coils on eBay for $26 shipped. At that price, you can buy 16 of them, and keep 8 as backups. Keep a few in the truck maybe.
