Diesel Injector Warning Signs: Poor Power and High Fuel Use

Had similar issues with my 2014 Chevy Silverado diesel. The symptoms you're describing match what I experienced, excessive fuel consumption, power loss, and smoke. The root cause was a faulty fuel pressure sensor and damaged injector connections. The system was getting wrong readings, causing improper fuel delivery. This isn't something you want to ignore, it can lead to serious engine damage if left unchecked. Quick checks you can do: Check for visible fuel leaks around injector seals, Listen for unusual clicking from injectors, Monitor fuel system pressure readings if you have access This definitely needs professional diagnosis. The injection system is complex and requires specialized tools to properly test. In my case, they had to replace the pressure sensor and repair two injector connections. It was a significant repair but solved the issues completely. Don't risk running it too long in this condition, modern diesel injection systems operate under extreme pressure and precision. Get it checked soon before it leads to bigger problems.

I had this exact same issue last year with my Colorado! The fuel injection system was acting up just like yours. After reading your symptoms, it's almost identical to what I went through. The smoke and power loss were definitely concerning. Mine turned out to be a combination of the fuel pressure sensor and a clogged injector, the whole diesel injection system needed attention. Got it fixed and it's running like new now. The power came back immediately and fuel consumption returned to normal. Did you get yours checked out yet? How much did the repair end up costing? Also, have you noticed any other problems since then? I'm curious because sometimes these issues can be connected to other maintenance concerns in the system.

Yeah, got it sorted right after our last chat! Just like your case, the symptoms were spot-on for injection system troubles. The mechanic found a bad cable connection to one of the components, basically the system wasn't getting proper readings, which messed up the fuel delivery and engine performance. The fix was way simpler than I expected, just needed to repair the faulty connection. Total bill came to 95 € for parts and labor, which honestly felt like a bargain considering how much better the engine runs now. The maintenance took about an hour, and the difference in performance was immediate. The smoke's completely gone, fuel consumption is back to normal, and the engine's running strong again. No other issues have popped up since the repair, everything in the system seems to be working perfectly. Really glad I didn't wait longer to get it checked out, as these kinds of problems can snowball if left unchecked. Looking back, the air intake and fuel delivery are so interconnected in these diesels that even a small electrical connection issue can throw the whole system off balance. Regular maintenance checks would probably catch these problems before they get serious.

Thanks for checking back! Finally got it sorted last week, what a relief. Took it to a new mechanic who actually specializes in diesel engines. Really glad I switched shops. The diagnosis was spot-on, faulty injector and sensor issues, just like you mentioned. They found two injectors weren't firing properly and the pressure sensor was giving bad readings. The engine performance improved dramatically after the fix. No more smoke, power's back to normal, and fuel consumption is way better now. Repair bill came to about three hours of labor plus parts. Bit pricey, but the difference in how it runs made it worth every penny. The maintenance was thorough, they checked the entire fuel system while they were at it. Been running great for the past week. Engine starts clean, idles smooth, and has plenty of power again. Definitely learned my lesson about getting these injection issues checked out quickly before they cause bigger problems.