I've changed my knock sensor, my o2 sensor, fuel filter, air filter, alternator, and cut out my cat. Still can't figure out why my truck has no power dose any one have an idea?

 

Hi Rocky, welcome to FTE!

We're gonna need more information than that. What year is your truck? How many miles? Which engine? Are there any trouble codes? Check engine light on?

 

Sounds like you've thrown a fair sized batch of parts at this. Is the check engine light on? If so, have you read the codes?

 

It's a 2002 f250 with a 5.4 it's got 140000 km on it, the check engine light was on the codes were for the o2 and knock sensor and after I changed them the light still came on and I still have no power

 

The codes that are currently on I'm not sure what they are my car reader craped out on me I just looking to see if any one has an idea I haven't tried yet, the only thing I can think of is a new transmission or plugs coils and leads maybe injectors

 

What do you mean by "no power?" Is there a bad miss? When I had two coils go out mine wouldn't go over 35 mph up a decent hill. Throwing parts at it is just going to make your wallet lighter. Wait until the problem is identified before replacing anything

 

No power as in can't climb hills my truck slows right down has no towing ability and I can put the pedal to the floor and go no where I reach about 4000 rpm before it switch gears

 

Can you feel a miss? Like it isn't hitting on all cylinders. When coils fo out on these engines they don't throw an engine code, so it won't show up on a scanner.