Struggling at higher speed/rpm

Have a 2005 Tundra with 77K on it. It was in storage for the past 5 years and I recently got it out to start driving it again.

Read a few posts from @shifty` and some other people and had some maintenance done to it.

Timing belt kit, new fluids/filters, new tires and added some seafoam to the gas. I plan to inspect the LBJ soon.

One thing I have noticed when at higher speeds, around 70/80 mph, it seems like the truck is struggling if that makes any sense.

For example, I was on the highway the other day and needed to get around some semi trucks. I was going 60 and needed to get up to 75-80 to pass. The truck just never really kicked into gear and seemed like it was have a hard time to pass. Maybe I didnt press on the gas hard enough but was curious everyones thoughts. The torque and response in lower gears is great.

Is this an issue on the 1st gens? Maybe something else is wrong with the truck given the age and milage

 

Probably condensation in the tank, toss in some dry gas and fill up to see if it occurs again after 10 minutes of driving.

 

Did you drain the gas tank before you, uh, refreshed it, @reefrash1043? Ethanol gasoline sitting for 5 years isn't going to be great for any truck.

 

If I'm reading his response from a couple weeks ago, don't believe so. Good point about ethanol which sucks in a chain saw if left too long.

Also curious if you got your timing belt done @reefrash1043.... "I plan to have the timing belt done this week."

05 Tundra making a stuttering/knocking sound when I start it up | Toyota Tundra Forum (tundras.com)

 

Maybe do a full tune up. test fuel system, filters, injectors. Check your plugs.

 

Does it struggle if OD is turned off?

 

I filled it up completely, drove through that tank and filled it up again with fresh gas.

 

It had maybe a quarter tank in it which I did not drain. Just filled to the top with new gas. Drove through that tank and filled up again with new gas.

 

Yes, had the timing belt done. The weird sound was the secondary injection pump thats known to go out on these first gens.