2002 Pontiac Grand Prix Low RPM Issues

2002 PONTIAC GRAND PRIX
256,000 MILES • 6 CYL • FWD • AUTOMATIC
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EDGE87
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Recently my car, when I came to a stop light, the RPMs went below 1,000 and it became very rough. It felt like it was going to shake itself apart. It was hotter than normal, and I stopped driving it. I was able to drive it the last few blocks home. If i keep the engine idle above 1,500 rpms it seems smoother and will be fine. This car hasn't had any major repairs or small replacements of anything. What would cause this?
Mar 15, 2009 at 10:51 AM
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