From Wikipedia, the free encyclopedia. Acute exacerbation of COPD also known as acute exacerbations of chronic bronchitis (AECB) is a sudden worsening of COPD symptoms (shortness of breath, quantity and color of phlegm) that typically lasts for several days.It may be triggered by an infection with bacteria or viruses or by environmental pollutants.hortness of breath and wheezing are present in many cases. Exacerbations may be accompanied by increased amount of cough and sputum productions, and a change in appearance of sputum. An abrupt worsening in COPD symptoms may cause rupture of the airways in the lungs, which in turn may cause a spontaneous pneumothorax.
Confidence votes 262K. To reset the fuel filter warning light off for the Toyota hilux one must replace the filter that switch the car on and off. They must also click the rest button.
Replaced fuel pump due to failure. Fuel filter was and is replaced every 20,000 miles. Upvote. Upvote. 1998 Oldsmobile Silhouette Visitor. Fuel pump does not seem to be working which I know is in gas tank.Had it replaced but still will not turn over.Acts like it will start but does not turn over. It just happened.he fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.