2000 Sierra Random/Multiple Cylander missfire

[quote:d8f60b9eda="crazychris1984"]I have a 2000 Sierra 2wd with 180,000miles 6 cylander, i changed the plugs, wires, and 2 oxygen sensors in it, and it lacks power and has a pinging noise when accelerating. put on computer code read Multiple cylander Missfire. Does any1 kno hat the problem could be? All Wires are in right order, and i bout ready to sell the truck[/quote:d8f60b9eda]

What did the code reader or scan tool gave you as for the OBD2 code/s

A misfire on a specific cylinder should point you to check the plugs/fuel injectors/compression/vacuum leaks/weak coil/sparkplug wire/s problem.

A random misfire is usually a lean fuel-lean misfire,open EGR valve,fuel pressure low and bad fuel.

What did the code reader or scan tool gave you as for the OBD2 code/s

A misfire on a specific cylinder should point you to check the plugs/fuel injectors/compression/vacuum leaks/weak coil/sparkplug wire/s problem.

A random misfire is usually a lean fuel-lean misfire,open EGR valve,fuel pressure low and bad fuel.[/quote]


Well I decided to take it to a shop I know and the problems were. clogger fuel filter, bad cap and rotor. and i need a new cat on the left side cuz its clogged

Sure appreciate you coming and letting me know-Thanks