New timing belt now rough running engine

95 Tacoma v6 3.4 ,300k plus noticed leaking water pump so we decided to do the new timing belt , water pump deal truck running fine at this point , we tare it down change all all timing marks lined up crank and both cams , idles great , but when u drop in gear starts running rough no power I’m at my wits end any help will be appreciated

 

@Dm93 might have a clue. Good luck!

 

Did you double check the timing since you assembled it?

Not uncommon to accidentally be 1 tooth off.

 

Yes I even loaded it on a trailer and took to local mechanic to look at it he confirmed timing is good

 

Was any other work done/parts removed when doing the timing belt and water pump?

Any codes?

 

No codes no other work it will idle great , but as soon as u drop in gear it just runs rough no power

 

Could be so many things. Did you take any in process photos, before and after photos? I'm a mechanic and take extra photos all the time. Just in case.

 

Might have to make it run rough until it throws a code. Cam sensors plugged in? Crank sensor plugged in?

What brand timing belt kit did you use?

 

If it runs fine in park then your timing is good. I would look for vacuum leaks and or connectors not seated well. Also by chance did you clean the throttle body?

 

Provide some pictures to know the situation.

 

Agree with this. Sounds like a vacuum leak.