I believe you have to go through the wheel well to access the rear plugs.Give it a try you might have to removed a plastic plug or cover.4.3 liter
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in the trunk
if you can get it on a hoist...its so much easier and quicker from below...trust me
how do i change the spark plugs on a Chevy silverado 1500
They are lined up like this on my 1995 Chevy blazer 4.3 L, V6 1,6,5,4,3,2
How do you change the spark plugs on a 2002 chavy trailblazer
Spark plugs and wires
Standard spark plugs, 50000 miles. Platinum tip spark plugs, 100000 miles.
They are in the heads where the exhaust manifolds are bolted to the heads. The plugs have rubber wires hooked to the ends of them.
You can begin by removing the spark plug wires from your 1985 Chevrolet S 10 Blazer spark plugs. Use a 5/8 deep well socket to turn the spark plugs out. Turning the socket to the left will loosen the spark plugs. Reverse the process to install the new spark plugs.
Change all your spark plugs and it won't any more