Why does the BYD F3 engine gasp after a major overhaul?

[CoreyRose]

It may be due to some unresolved issues during the repair. Here is some relevant information about BYD: 1. Brand Introduction: BYD Auto adheres to the development path of independent R&D, production, and branding, aiming to create truly affordable and high-quality vehicles for the public. The product design incorporates advanced international trends while aligning with the aesthetic concepts of Chinese culture. 2. Development Philosophy: BYD consistently upholds the development philosophy of 'Technology as King, Innovation as the Foundation.' With strong R&D capabilities and an innovative development model, it has achieved comprehensive growth and plays a pivotal role in multiple fields, including batteries, electronics, passenger vehicles, commercial vehicles, and rail transit.

[VonEloise]

After driving for so many years, I've encountered quite a few instances where the engine gasps after a major overhaul, usually caused by loose spark plugs or clogged fuel injectors. The other day, I helped a friend fix his BYD F3, which was also gasping badly. It turned out that during the overhaul, the parts weren't aligned properly, causing uneven cylinder pressure and too rapid air intake, making the engine shake like it was gasping. I recommend first checking the ignition system yourself, like pulling off the high-tension cord to inspect the spark plug gap to see if it's loose or dirty. Alternatively, it could be a cracked intake pipe or carbon buildup blocking the throttle body. If this issue isn't addressed promptly, not only will the engine shake uncomfortably, but it will also accelerate part wear, increase fuel consumption, and cost more to fix in the long run. It's best to take it to a professional repair shop to test cylinder pressure and sensors, rather than trying to fix it yourself to save trouble.

[BrielleMarie]

I usually care most about how to save money on car repairs. After a major overhaul, my BYD F3 started to sputter, likely due to a fueling issue caused by sloppy assembly. During the overhaul, if the fuel injectors or fuel lines weren’t cleaned properly, leftover debris could block the fuel flow, causing the engine to sputter unevenly due to insufficient fuel supply. I didn’t fix it in time, and my fuel consumption jumped from 6 liters to 9 liters, wasting hundreds on extra fuel. A simple trick is to pop the hood and feel if the air filter cover is hot—if it’s scalding, the intake is clogged. If that doesn’t help, check the fuse box for any blown fuses cutting off power. Don’t be lazy to save money—try fixing it yourself first. If that doesn’t work, spend a little to have a mechanic adjust the fuel lines. Otherwise, if the whole car breaks down, you’ll be hit with a huge bill.

[MacGabrielle]

Last time I took my BYD F3 on a long trip, right after a major engine overhaul, it started gasping and shaking violently—super dangerous! It might be due to loose connecting rod bolts or sensor failure causing unstable power. Once on the highway, a bump almost made me lose control and crash—scared me so much I pulled over immediately. Unresolved gasping could lead to engine explosion, with debris flying everywhere or even an engine fire. If you notice these symptoms, shut off the engine and turn the key immediately—don’t force it to run. Call roadside assistance for a full inspection, and have a professional mechanic check cylinder pressure and the electrical system. Safety comes first—spending a few hundred at the repair shop is totally worth it.