I don't know why you couldn't change them, no matter where you are.
the plugs on the back are very difficult. How is this done.
when do you change spark plugs
It can be complicacated since on some models the spark plugs are difficult to get to but I would recommend to find the spark plugs first and then double check to make sure you know where they are.
No. However, newer plug wires can be extremely difficult to remove without damaging them.
To change the spark plugs in a 1997 astro van do I have to change the spark plugs from the bottom of the engine/
yes. The frontal plugs are easy, but the rear plugs require you to get your hand up in the engine from underneath.
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