Swift Temperature Sensor Failure Causes Power Loss

I had a similar issue with my 2006 Swift Sport. Having some experience with basic car maintenance, I first tried checking the connections myself but quickly realized this needed professional attention. The symptoms you describe match exactly what I experienced, the engine sensor warning, reduced power, and that distinctive noise. The charge sensor was showing inconsistent temperature readings, which triggered the check engine light. In my case, the workshop found the main issue was a damaged wiring connection to the air temperature sensor. The constant engine vibration had worn through the protective coating, causing intermittent signal problems. They replaced the entire wiring harness section and the air sensor as a precaution. Total cost was 95€ for parts and labor. The fix completely resolved the temperature fluctuation issues and restored normal engine performance. No more warning lights or power loss since then. Before suggesting more specific solutions, could you share: Your engine size, Approximate mileage, How long the symptoms have been present, Any recent repairs or maintenance, Whether the issues occur more during cold or hot weather This information would help determine if your case might require a different approach than mine did.

Currently at 183372KM and recently serviced. The charge sensor issue you described sounds very similar to my experience. The airflow sensor readings finally stabilized after replacing both the temperature sensor assembly and cleaning the air intake system. The whistling noise turned out to be from a cracked vacuum line near the temperature sensor connection. Total repair cost was 210€, including: New charge air temperature sensor, Air intake cleaning service, Vacuum line replacement, Diagnostic fee The temperature fluctuation problems completely resolved after these repairs. Performance returned to normal and the engine light cleared. The mechanic mentioned this is a fairly common issue on these models around 150000-200000KM.

As mentioned in my previous reply about my 2006 Swift Sport, I went through almost the exact same repair process. While my initial fix focused on the wiring harness, I later discovered a similar vacuum line issue that was contributing to those temperature sensor reading fluctuations. The air intake cleaning service you had done was actually a smart move. After dealing with multiple temperature sensor issues, I learned that buildup in the air intake system can cause inaccurate readings even with a new sensor installed. The airflow sensor works together with the temperature gauge to maintain proper engine performance. Your repair cost of 210€ seems reasonable considering the comprehensive fix. My initial repair was cheaper at 95€, but I ended up spending another 85€ a few months later for the vacuum line and intake cleaning, so the total was comparable. Based on your mileage and the common occurrence of these issues, replacing both the air sensor and vacuum lines was definitely the right call. These preventive repairs should help avoid future temperature sensor failures and maintain proper airflow readings. Has the whistling noise completely disappeared since the vacuum line replacement? In my case, it took a few days of driving for all sounds to normalize after the system fully resealed.

Thanks for your detailed feedback about the charge air temperature sensor repair. Yes, the whistling noise completely disappeared right after the vacuum line replacement. The automotive sensor readings have remained stable during the past month of driving. Running some basic monitoring software shows the air intake temperatures are now consistent with outside conditions, and the airflow sensor is reporting normal values. My mechanic mentioned keeping the air intake system clean will help prevent future temperature sensor issues. The 210€ investment was worth it considering the improved performance and peace of mind. The car runs like new again with proper power delivery. For anyone else facing similar symptoms, I recommend getting both the temperature sensor and surrounding components checked, as the issue often involves more than just the sensor itself. My Swift actually just passed its annual inspection without any sensor-related problems. Seems the comprehensive repair approach paid off in terms of reliability.