Lifter Tick After Engine Replacement
Tick or tap after an engine swap may be oil prime, wrong oil, exhaust leaks, or injector noise — distinguish install issues from unit defects before warranty removal.
Quick Answer
**Lifter tick after engine replacement** is often **low oil pressure during prime**, incorrect oil viscosity, exhaust leak at manifold, or injector noise — not proof of defective lifters on first start.
What to verify
1. Oil primed per OEM procedure before extended cranking. 2. Correct oil spec and level after heat cycle. 3. Exhaust manifold gasket seating and torque sequence. 4. Compare tick to injector noise at idle vs off-idle.
FAQ
How long should tick last after prime?
Brief tick can occur during bleed — persistent tick needs shop diagnosis and documentation.
Should we tear down for tick immediately?
Call warranty with scan data and oil pressure readings before removal.
Related on Expedia Parts
- Engine won’t start: /blog/engine-wont-start-after-install
- Check engine after swap: /blog/check-engine-light-after-engine-swap
- Warranty documents: /blog/documents-required-warranty-claim
- Shop engines: /used-engines