5.7L Hemi manifold bolts and eTorque MGUmajor
The two engine issues that define 2021 carry into 2022. On the 5.7L Hemi, exhaust-manifold bolts snap and manifolds crack, producing a cold-start tick that grows and, in bad cases, fumes in the cab. On eTorque trucks, the 48-volt motor-generator unit (MGU) is a known failure point — a mechanic recounts one shop quoting around $5,000 for the job that an independent did for under $1,000. Cold-start and listen for the manifold tick; if it's an eTorque truck, confirm the 48-volt system is fault-free. A non-eTorque Hemi or the Pentastar V6 sidesteps these.
Sources: NHTSA complaint database, 2022 Ram 1500 (body-style-aggregated) · Independent mechanic channel transcripts (5.7 Hemi manifold/cam/lifter; eTorque MGU teardown)
under $1,000
eTorque/MGU — independent (mechanic-cited)
~$5,000
eTorque/MGU — dealer quote (mechanic-cited)