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James, Ford Technician
Category: Ford
Satisfied Customers: 3602
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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Will not accelerate, 04. Changed fuel filters before this

Customer Question

Will not accelerate
JA: How old is the transmission? Have you checked the fuel filters?
Customer: 04. Changed fuel filters before this happened
JA: What is the model of your '04 Ford?
Customer: Excursion limited with 6l diesel
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Hoping to fix myself have not tried anything yet hoping for advise
JA: Anything else you think the mechanic should know?
Customer: Going back it would not start changed oil and filters changed fuel filters ran except would not go full throttle Drove 6miles sat would not go fast started to fade like it was out of fuel had it towed home will start but will not accelerate
Submitted: 6 months ago.
Category: Ford
Expert:  James replied 6 months ago.

Hello, can you tell me what model and engine you have please?

Customer: replied 6 months ago.
excursion 6l diesel 04
Expert:  James replied 6 months ago.

Does the engine run rough when this happens? It sounds like you can have a couple of things happen. One is low fuel pressure from failing furl pump. The other thing is you can have low high pressure oil not building enough oil pressure to power the injectors correctly.