Reduced engine power light coming on

[salnazzaro]

So my reduced engine power light has been randomly coming on. Appears to only do it on highways? Came on today while I was towing on the highway. If I shut it off and restart it when i stop goes away but comes back when I get back on the highway. Any ideas? Still feels the same

[mnchvgs79]

Originally Posted by salnazzaro

So my reduced engine power light has been randomly coming on. Appears to only do it on highways? Came on today while I was towing on the highway. If I shut it off and restart it when i stop goes away but comes back when I get back on the highway. Any ideas? Still feels the same

I've had the same happen a few times, it appears to have stopped since I changed both of my fuel filters. Could be coincidence.

[08KingRanch350]

Mine was doing that to it ended up needing one of the thermostats replaced. Hope this helps.

[salnazzaro]

On thanks the info, I'll have my mechanic change the fuel filters because I'm due for them I think and I'll see what he says about the thermostats. Thanks!

[dazed01]

I'd think you would have a dtc stored in the PCM that would give a clue about what is happening

[salnazzaro]

All my codes are for the tuner, losing communication and all that

[salnazzaro]

Truck goes in Wednesday for a new thermostat and new fuel filters so we'll see what happens. Hopefully this does the trick!

[salnazzaro]

Well my mechanic didn't want to do the thermostats due to the fact of removing the egr so I guess I'll have to do them when I do my egr delete. Fuel filters were done and the light came on this morning still on my way to work

[mnchvgs79]

Yup, mine came on with a nice hard run on my way to work this morning too. Damn... I think mine is coming on from "overboost"... doesn't really happen until my boost needle is buried. Never happens in normal driving.

[salnazzaro]

Mine happens alot when I'm on highways for some reason, I don't really accelerate hard but the boost needle is buried at 40psi getting up to speed or passing. It's been doing it alot lately, it used to be every once in a while.