I. OEM Part Number:
12659290 | 14381695 | 12619123
12600706 | 12609876
911-153 | 911153
214-2302 | 2142302
II. Applications of This Item:
Compatible with Chevy Impala 50th Anniversary Edition Sedan 4-Door 2008
Compatible with Chevy Impala LS Sedan 4-Door 2007-2010
Compatible with Chevy Impala LT Sedan 4-Door 2007-2010
Compatible with Chevy Monte Carlo LS Coupe 2-Door 2007
Compatible with Chevy Monte Carlo LT Coupe 2-Door 2007
Compatible with Buiick Lucerne CX Sedan 4-Door 2009-2010
Compatible with Buiick Lucerne CXL Sedan 4-Door 2009-2010
Compatible with Buiick Lucerne CXL Special Edition Sedan 4-Door 2010
III. Symptoms of a Bad or Failing Air Pump Check Valve
1. Exhaust fume odor
One of the first and most common symptoms of a bad or failing check valve is an exhaust fume odor. The odor is a result of exhaust leaking either from the valve housing, or through the actual check valve back into the secondary air injection system. The odor may become most noticeable at idle speeds. Any sort of odor indicates an exhaust leak, which compromises emissions.
2. Failed emissions test
Many states require their road-going vehicles to pass an emissions test in order for the vehicle to be legally operated. If the air pump check valve fails, it can significantly impact the tailpipe emissions of a vehicle. The air pump check valve works to reduce hydrocarbon and carbon monoxide emissions of a vehicle, so when it fails, the levels of these two pollutants will increase.
3. Check Engine Light is On
Another common symptom of a failed air pump check valve is the Check Engine Light coming on. When a problem is detected by the vehicle's computer, it will set off a code and activate the Check Engine Light. Having the vehicle scanned for trouble codes can reveal if there may be a problem with the air pump check valve that needs to be addressed.