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How do you change the spark plugs on a 2002 chavy trailblazer
There in the heads on the motor
What huh?
ALL gasoline engines have spark plugs. Only diesels don't have spark plugs.
AC Delco Iridiums
follow the plug wires they are on the heads
Depends on the size of your engine. IE if, you have a 6 cylinder (v-6) it requires 6 spark plugs etc.
Change the spark plugs every 100,000 miles. Follow the service intervals in the manual. www.trailvoy.com All the answers for your Trailblazer from true enthusiasts.
Down the center of the head under the intake box. You have to remove each coil with one 10mm bolt and then the plugs are easily accessed.
Where are the spark plugs on a trailblazer
Bad spark plugs, coils are coil, bad injector. Cam are crankshaft sensor
A/C Delco #41-103, these will idle better than other brands. Also good, NGK, or Denso, stay away from Bosch, and any platinum plugs.