If you are referring to the number 3 spark plug hole, I can help. The cross bar prevents you from using a six inch extension due to clearance issues. Try using two 3" extensions. Get the first one half way in the hole (DO NOT let it fall in the hole, and carefully add the second. Remove the same way.
That is the rubber boot that is on the end of the spark plug wire that goes onto the spark plug.
.o44 and some are .043.
This motor has no distributor. It has a coil pack for each spark plug. There is no condenser.
Apparently it's less difficult when the car is on hoist.
Firing order 1-3-4-2
Spark plug gap chevy ls blazer
There is no spark plug cap located on the 1993 Chevy Blazer. The spark plug gap for this vehicle varies depending on the type of spark plug that is used. The OEM spark plug gap for this year is 0.040.
.045 spark plug gap
spark plug
The recommended spark plug gap for a 1994 Chevy 5.7L Pickup is .035" The recommended spark plug gap for a 1994 Chevy 5.7L Pickup is .035"
The spark plug gap for a Chevy Celebrity V6 is 0.045".
www.s10forum.com/forum/f201/spark-plus-wires-installation-on-a-98-2-2-a-101601/