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05 f150 5.4, the truck starts fine and idles fine. As soon…

05 f150 5.4...

05 f150 5.4 , the truck starts fine and idles fine. As soon as I put it into gear it seems strained. The truck has no power under load to the point of going 20mph up a hill. It also doesn't want to go over 2000rpm. On level ground I can accelerate slowly as long as I don't push it to hard. I have changed air filter, fuel filter, and added a fuel supplement to rid any water and clean my injectors. It seems to be getting worse each day. I need help.

Mechanic's Assistant: Is the power loss consistent, or does it fluctuate?

It is consistent

Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far?

I changed tps, air and fuel filter

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Answered in 1 minute by:
3/28/2018
roy
roy, import/domestic specialest
Category: Ford
Satisfied Customers: 7,762
Experience: ASE master tech for 40 years
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hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

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Customer reply replied 3 months ago
K

From your description it sounds like you have clogged cat converters not allowing the motor to breathe.

is the check engine light on?

Roy

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Customer reply replied 3 months ago
No cel, no codes

ok, then it is mechanical.

I would unbolt the front pipe from the manifolds and run the engine and see if the power is restored. that will confirm the cats being clogged.

Roy

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Customer reply replied 3 months ago
Is there anything else I should check if that doesn't help my problem?

you could check the fuel pressure but I doubt it. you would have a hard start.

the torque converter in the transmission could be locked up but it would most likely code.

Roy

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Please take a moment and rate my service 3 stars or better. that is the only way the site will pay me for my efforts.

Roy

roy
roy, import/domestic specialest
Category: Ford
Satisfied Customers: 7,762
Experience: ASE master tech for 40 years
Verified
roy and 87 other Ford Specialists are ready to help you
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Customer reply replied 3 months ago
Absolutely, thank you

thank you

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