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.
Spark plug gap chevy ls blazer
Spark Plug Gap 1993 4.3.035 hi i have a 1993 blazer 4.3 the gap four that is 0.045
0.035 plug gap
Could be a faulty spark plug or spark plug wire.
One at a time so as not to mess up the firing order.
It will be the last spark plug on the rear of the passenger side of the engine.
The spark plug gap for a 1994 full size Chevy Blazer with a 5.7 liter engine is .045 inches. This is equal to 1.1 mm.