2013 infiniti qx56 engine noise. ^ Refer to the B ENGINE > EM Engine Mechanical section of the ESM. The issue is that the Bank 2 timing chain which the direct injection pump runs off off, stretches and it actually makes contact with the oil jet. . Once proper oil jet installation is confirmed, reassemble the engine with new B1 and B2 timing chains. Refer to the appropriate section of the Electronic Service Manual (ESM) for further diagnosis. Jan 14, 2025 · The most common reasons a 2013 INFINITI QX56 engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak. Jul 9, 2020 · Besides engine noise, a DTC for timing is immediately triggered, bad or rough idle, lack of engine performance, timing out of spec and constant engine misfires no matter the rpm range. You could be looking at around 3 to 4k dollars to have this done. ^ Always replace related seals, o-rings and gaskets as noted in the ESM. ^ Replace timing chain related components as necessary. Oct 16, 2019 · Infiniti QX56 owners have reported 8 problems related to loud engine noise (under the engine and engine cooling category). This timing chain job is huge on this truck. Also please check out the statistics and reliability analysis of Infiniti QX56 based on all problems reported for the QX56. The most recently reported issues are listed below. One problem related to engine rattling and whining sounds has been reported for the 2013 Infiniti QX56. Be prepared to contact Infiniti to see if they will offer any assistance with this repair. If the noise does not increase with engine speed, the timing chain system may not be the cause. gguon wfqge ksig hstzt aqdaf zpnw yqcswu hhzh oveyke nelxd