Compass Hybrid's MAF Sensor Nightmare: Smoke and Stalls

Had similar symptoms on my Cherokee Hybrid a few months back. The performance decline and increased fuel consumption were clear signs of MAF sensor failure affecting the air-fuel ratio. The engine stalling happened mostly during acceleration or when idling at traffic stops. Black smoke from the exhaust confirmed the engine was running rich due to incorrect air flow readings. The MAF sensor was completely clogged with debris and oil residue. A professional cleaning did not resolve the issue, so full sensor replacement was necessary. This is a critical component that directly impacts engine performance, fuel economy, and emissions. Getting the MAF sensor replaced resolved all issues: Fuel consumption returned to normal, No more engine stalling, Smoke disappeared, Check engine light turned off, Smooth acceleration restored The repair was straightforward but required specific diagnostic equipment to confirm the MAF sensor was the root cause. While serious, addressing it promptly prevents potential damage to other engine components like catalytic converters. Consider getting a diagnostic scan first to confirm the MAF sensor is the culprit before proceeding with repairs.

Thanks for sharing your experience. This matches exactly what I dealt with when my Compass had MAF sensor problems. Quick question, do you recall roughly what you paid for the full repair including labor? Just trying to get a sense of costs since prices seem to vary quite a bit. Also curious if youve had any other issues pop up since getting the MAF sensor replaced? My performance has been rock solid after the fix but always good to know what to watch out for.

After seeing my mechanic last week, I can confirm the total cost for replacing the defective MAF sensor came to 365 Euro including parts and labor. Since getting the mass air flow sensor replaced, my Cherokee has been running perfectly with no performance decline or engine stalling issues. The repair completely resolved all the original problems, no more excessive fuel consumption, stalling, or smoke. The sensor failure diagnosis was spot on, and the fix was worth every cent considering how critical this component is for proper engine function. Its been several months now with zero issues. The engine runs smoothly, fuel economy is back to normal, and the check engine light has stayed off. Regular maintenance and keeping the air filter clean should help prevent future MAF sensor problems. The 365 Euro repair cost was reasonable considering the specialized diagnostic work needed and the importance of using quality replacement parts to prevent recurring mass air flow measurement issues.

Just got back from the shop and wanted to share my repair experience. The mechanic confirmed it was indeed the MAF sensor causing my air-fuel ratio issues. Total bill came to 410 Euro for parts and labor, which seems fair compared to other quotes I received. The diagnostic process was quick, they hooked up their scanner which pointed to the air intake system. Inspecting the MAF sensor showed heavy contamination affecting the air flow readings. Replacing it fixed all my problems: No more excessive fuel consumption, Engine runs smooth without stalling, Smoke is completely gone, Check engine light cleared Three weeks in and the car runs like new. Already noticed huge improvement in fuel economy. Will definitely keep a closer eye on the air filter maintenance to avoid future MAF sensor issues. Thanks for the helpful advice. Saved me from getting overcharged and helped me understand exactly what needed fixing. Really appreciate this community looking out for each other.