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2007 5.4 Fuel Pump or Cats

Blacktruckdave

Blacktruckdave

151
1
Clifton New Jersey
So my truck is starting to feel a bit sluggish and I have to put the pedal to the floor to get it to move. Also MPG is terrible.
Question: Is this something replacing the gas tank fuel pump will fix or could it possibly be clogged cats? Truck starts and runs fine and no codes at all. 129k miles on it well maintained. Also rail fuel filter replaced. Thank you in advance
smilieFordlogo
 
blacksnapon

blacksnapon

Moderator
Staff member
9,461
301
waynesville,mo.
Blacktruckdave said:
So my truck is starting to feel a bit sluggish and I have to put the pedal to the floor to get it to move. Also MPG is terrible.
Question: Is this something replacing the gas tank fuel pump will fix or could it possibly be clogged cats? Truck starts and runs fine and no codes at all. 129k miles on it well maintained. Also rail fuel filter replaced. Thank you in advance
smilieFordlogo
Click to expand...
Yes and no. Fuel pump, only if its got low fuel pressure. Cats, only if the exhaust is plugged. Diagnostics are required.
 
blacksnapon

blacksnapon

Moderator
Staff member
9,461
301
waynesville,mo.
Specification
Fuel Pressure
Engine running 193-310 kPa (28-45 psi)
Key ON Engine OFF (KOEO) 240-310 kPa (35-45 psi)
OEM on the exhaust unless you are prepared to spend a lot of money.
 
Blacktruckdave

Blacktruckdave

151
1
Clifton New Jersey
Thank you Blacksnapon for your help.....I know it's gonna cost for the exhaust but I'm gonna end up paying in fuel costs anyway. I love my truck and it's in really great shape for 2007 with 130k miles. DIY as much as I can because I love to learn and love to maintain my own as much as possible. Just looking for solutions to performance and gas milage.
 

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