What type of spark plug required for 2006 uplander

SOURCE: chevrolet trailblazer 2006 engine spark plugs

Platinum (or more precisely-AC Delo Iridium) spark plugs. The six spark plugs are directly under each of the six coils on top of the camshaft cover. The air intake needs to be removed, then each of the 10mm bolts for the individual coils. The coils can then be removed and the spark plugs accessed.

Clifford Beard

• 1975 Answers
• Posted on May 01, 2011

SOURCE: Firing ORDER FOR THE 2006 chevy Uplander Van 6

There are 2 6 cylinder engines for that year. Both are the same as far as wiring/firing order but gave you both anyway(see below). There have been times that I thought I did the same thing as far as the firing order and have been doing it for 25+ years. Sometime i did and sometimes I didn't. So if you find the wiring is correct and you seem to have a miss, In about 90 percent of the time that this has happened to me I had knock a vacuum hose off so you might want to start there if they are right. It sure sounded like a miss at those times but was vacuum. There are other factors but that's where I would start if this is the case. I hope this helps and good luck.