I have a 92 chevy silverado when it idles the rpm is at 1000 and every few seconds it drops about 500 rpms. I have have replaced plugs, wires, ignition coil, distributor, spark control, tps sensor which made it worse, fuel injectors, o2 sensor, and idle air control valve. I am am at my witts end please help.
have the same problem?
Friday, May 1st, 2009 AT 9:52 AM