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coil misfire

  1. General
    I am getting misfire error codes and sure enough one of my coils is damaged and must be replaced. Question is... Have any of you had bad experiences with 3rd party coils that are not AC Delco? Auto parts is charging me over $120 each coil and online i see some places charging about $160 for ALL...
  2. The 02-09 "How-To" and DIY Section
    Hi, I bought an 02 GMC Envoy only 3 months ago at 235,000km. I wasn't expecting it to be perfect, the entire time I've had it the belt has needed replacing (haven't had the time) because it squeaks but that seemed to be the only issue. I'm now noticing that I have to top up my engine coolant...
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