I'm really in need of some help here fellas, my cousin has a 2002 Double Cab Pre Runner 2wd auto. Has around 147k and is super clean, runs great etc..
After the truck warms up it starts to make a thumping or rubbing/ knocking noise that you can hear prominently from the inside of the cab and does it when the truck is in gear. When its in neutral it mostly goes away. He runs 93 oct. It still runs great and has power, it is not a rod knock.
Things that have been done in the past month or 2 trying to solve this:
- timing belt
- hydraulic tensioner
- all other belts
- water pump
- all the pulleys (idler/tensioner)
- thermostat and gasket
- cam and crank seals
- fresh oil change
- fresh Denso plugs
- SeaFoam in tank and induction
This is a mechanic owned truck and we're pretty much stumped. Any and ALL help would be much appreciated. - Drew