the noise is coming from front area but with a little throttle goes away also just replaced the map sensor and coolant sensor as well and it was okay for moment then did same exact thing so im really stuck now

 

Don't you think it could be a worn timing chain?

 

Anything is possible......

 

 

hello guys so my truck seems idle lower now about 2800-3200 roughly idles nicely drop into gear goes about 2200-2400 and when i give it gas and hit throttle good it sputters then backfires and dies and puffs out the intake so what would cause this...fuel pump maybe? idk replaced about anything could think of.. also noticed drivetrain seemed to move more than i think it should be but could be wrong idk why would die like that and even when go drive forward itll bog down and stall unless gas it any thoughts??? anyone please love this truck and just wanna get running nice and smooth..

 

and once in drive not so much reverse let sit and acting like wants to surge forward and like its missing..

 

If it's idling that high, you have a serious vacuum leak somewhere.

 

do you have any ideas where ive replaced all hoses i could see so far idk if maybe someone mixed some up somewhere or what dont have diagram or anything so idk but yeah seems like it has leak but i cannot find one at all its got me stumped...

 

See if you can find a factory service manual for your truck. That should have a vacuum diagram in it, among other useful info.....