u/Strict-Rub6614

Engine knocking, I think it finally happened

Engine knocking under partial throttle load, when checking logs and knock sensor no spikes detected (0.75v on cylinders 1-5 max)

Oil pressure under idle and load isn’t low or high (33-36psi at idle) and (55-67 max under load and driving conditions in either city or highway)

When driving near walls or enclosed garages the knock can only be heard at certain throttle inputs between 10-20% throttle and around 1800-2200 RPM, above 4k it’s hard to hear noise as Catless and open air intake so it’s sucking noises and vroom sounds no wastegate rattle as that seems to be coded out very well with latest Uni flash

Currently stock block 77k miles with Uni stage 3BT and TCU tune running IMS750HS no ethanol but flex capable, 93 shell pump gas and all Uni recommend supporting mods besides Iroz LPFP and built bottom end.

Video uploaded of both upper and lower noise, the whine in the first clip is alternator pulley, listen for knock about halfway through

u/Strict-Rub6614 — 6 days ago