Hilux Diesel Rough Running

My 2011 Toyota Hilux diesel is giving me grief. Only 60k on the clock. The check engine light's on, and she's running rough. Feels like I'm losing power, especially when I try to boot it. It’s jerking when accelerating, and sometimes stalls at idle. Feels like it might be a rich mixture. Anyone seen anything like this? I'm thinking maybe a dodgy mass airflow sensor messing with the air-fuel ratio, but open to ideas before I start throwing money at it!

4 comment(s)

The symptoms you describe resemble an issue I encountered with my previous vehicle, a 2018 Volvo V60. In my case, the 'check engine' indicator was triggered, accompanied by a reduction in engine performance. The diagnostic analysis indicated a malfunction within one or more of the injection valves/injectors. Have you considered this possibility?

Injection valves, eh? Interesting. How did you figure out it was the injectors on your Volvo? Did you run any specific tests, or did the shop just tell you that's what it was? And what exactly does an injector do wrong to cause this kind of mess?

The malfunction was identified through diagnostic tests performed by a certified technician. The fuel injectors, responsible for atomizing fuel for optimal combustion, can become compromised due to blockages or internal failure, leading to an imbalance in the air-fuel ratio. Given the commonality of symptoms, I recommend seeking professional diagnostic assessment for your Hilux.

Cheers. Sounds like you've been there. Took it to the shop. Turns out you were spot on – dodgy injector! Cost me 515€ to get it sorted, but she's running sweet now. Appreciate the pointer!

Join the discussion now: