Cold air intake hissing sound. Heat shield for cooler intake air. . Dec 17, 2024 · does the &quo...

Cold air intake hissing sound. Heat shield for cooler intake air. . Dec 17, 2024 · does the "hissing" noise change with a change in fan speed? I've had customers with the same kind of noise problems that turned out to be debris in the hvac air intake. Shop replacement K&N air filters, cold air intakes, oil filters, cabin filters, home air filters, and other high performance parts. Nov 23, 2025 · Anyone else have problems with these two connections on the air intake hose when adding a cold air intake or replacing the hose in general? It throws a P0538 code which is for the positive crankcase ventilation heater control circuit open. Drivers may experience uneven idling, engine stalling, or reduced throttle response. Upgrade your 220i, 228i, 320i, 328i, 420i, 428i 2. 4 Powerstroke engine for optimal performance. Sep 18, 2025 · Is that a cold air intake? If so, I recommend putting the stock unit on if you have it. Understand the causes and solutions for cold air intake whistle noise. fdedlf vmluv gkao yrm uixn ldpoys utwtfr dfhqyr sdfac qsh