General
Hi,
I am new to this forum and I would like to request for your assistance.
I have a 2005 Chevy Trailblazer 6cyl, 4.2, 2WD, LT that is idling rough even after replacing:
-spark plugs(ac delco)
-air filter
-engine varialble valve selenoid
-camshaft
-crankshaft
-replaced 2 bad coils
-clean...