ACDELCO Parts

[luvmy99tahoe]

I dont know much about the specifics of how the tahoe works but I have been told that the spark plugs and wires should be ACDELCO because the computer will have errors if I dont. They also said that all parts replaced should be ACDELCO. I find this hard to believe that spark plugs and wires realy matter beyond a quality brand. does any one know the true answer? If so, what have you used?

[BowtieFreak]

For GM vehicles AC Delco, or Delphi, parts are recommended. But it doesn't matter what parts you use. For spark plugs I would recommend using AC Delco or NGK. But you can use Bosch, Autolites, Champions, whatever brand you want. I'm using Delco platinums and Beldon wires from NAPA in my truck. I used to run the Bosch +4 plats, but I get better performance out of the Delcos.

[gurrzt]

My other vehcile is a 2001 GM (OBDII), and I am running NGK tr55 plugs, and Magnacore spark plug wires. It is a performance vehicle, and I am running an aftermarket torque converter, rearend gears, and flexplate, plus a transgo shift kit.

The vehicle runs excellently, absolutley no problems.

In most cases, the aftermarket exceeds the GM parts.

JMHO