Need to know what year.
Not sure what year or model you have but the small button near the headlight switch on my 1998 S10 shuts off the interior dome lights. It is called the dome light interrupter.
1994
No it does not. Chevy did not use them in that year on there trucks.
What engine and what year?
Chevy did not use a transmission drain plug on that year. You MUST remove the Big medal pan, The one that has all the small bolts holding it to the bottom of the transmission. It will be full of fluid... Be sure to have a LARGE drain pan.
1990
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.
What year and what engine?
the Chevy 5300, 2003 and other v8 built in that year the spark plug gap should be set at .060
Need year and model. If it's older and on the dash push/pull type there is a small button to release the switch rod then you use a special tool to turn the nut on the front to release.
Depends on the year and engine which you fail to list.