how am I able to tell if the distributor or the ignition control module is going bad because I don’t have a spark.

05 Envoy SLE

I recently replaced the air injection check valve/solenoid and my truck stalls when the AC is turned on, I did have the battery disconnected while… Read More »05 Envoy SLE

2002 gmc yukon

Started it tonight and only battery and oil pressure gauge work. Also my climate control did not work and radio. Park nuetral drive and etc… Read More »2002 gmc yukon