1999 Buick Century popping sound

1999 BUICK CENTURY
37,400 MILES • 6 CYL • FWD • AUTOMATIC
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1999 Buick Century 37,400 miles. My car makes a popping sound when I start it up and idles. In addition, when I rev it it pops at the end of the rev.
Oct 13, 2010 at 5:33 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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The first thing to do is to have the PCM computer scanned. If a fault code or codes are present, it may tell you what your problem is. If no codes are present, then try a compression check and a fuel pump test. Other possibilities are ignition problems or plug wires.
Oct 13, 2010 at 5:38 AM