What procedures are required for replacing a car engine?

[JosephFitz]

The procedures required for replacing a car engine are: 1. The vehicle owner must bring their ID card, vehicle license, motor vehicle registration certificate, and proof of the new engine to the vehicle management office. A staff member will issue a vehicle inspection application and take an imprint of the new engine number, providing the owner with an envelope and the inspection application form; 2. The owner takes the envelope and inspection application form to the inspection station for vehicle testing; 3. The inspection station will reseal the envelope previously given to the owner and also provide an inspection compliance certificate. The owner then takes these two documents, along with the original and photocopies of the vehicle license, registration certificate, ID card, temporary residence permit, etc., to the location where the imprint was taken for photography. After obtaining the photos, they can proceed to the service hall to complete the process.

[AmyLee]

I previously replaced my car's engine, and going through the procedures is something you really need to take seriously. First, you must ensure the new engine comes from a legal source—if buying a used one, always check the original vehicle's documentation and disassembly certificate. Then, find a qualified repair shop to do the work. After the modification, ask the mechanic to provide a repair certificate and invoice. The most crucial step is to visit the DMV within 30 days to complete the change registration, bringing your ID card, vehicle registration certificate (green book), vehicle license, engine qualification certificate, and repair certificate. The inspector will verify the engine model and chassis number, re-stamp the VIN, and update the information on both the vehicle license and green book. Don’t forget to check local environmental requirements in advance—some cities also require an emissions test. This process often gets stuck on the engine source documentation, so be sure to ask clearly when purchasing the engine.

[AngelinaRose]

I just went through the process of replacing my car's engine last year, and it was quite complicated. The first step is selecting an engine, making sure the model matches the original one, otherwise it won't pass inspection. After installation, you must obtain the repair shop's work order, preferably with both the old and new engine serial numbers recorded. Before heading to the DMV, remember to prepare all necessary documents: the vehicle registration certificate, driving license, original ID card, as well as the purchase invoice and certification for the new engine. Be patient on the day of the inspection queue, as the staff will check the engine installation and verify all the numbers. After completing the modification procedures, don't leave in a hurry—wait on-site until the new driving license is issued to consider the process fully completed.

[DelCourtney]

In our industry, engine replacement mainly gets stuck at three key points. First is the timing of registration - you must complete the procedures within 30 days after the modification, or face fines. Second is the documentation - besides standard ID and vehicle certificates, you'll need the repair shop's qualification proof and detailed construction records. Third is the inspection phase - pay special attention that the exhaust pipe layout must match the original design, and vehicles with modified catalytic converters usually fail emissions tests. We recommend consulting the DMV in advance when selecting an engine, as some imported engines require additional customs documents.