valve seals and or guides bad
valve seals ,I just had my replaced it was 400 dollars with parts and labor.They let the oil drip down into the cylinder when the motor sits for a little while .
constant draw on the battery? dome light on? old battery?
yes
Code 23 in your 1993 Chevy Blazer is referring to the Manifold Air temp sensor being out of range. Start by looking for the sensor to see if it is unplugged.
Where is the horn located on a 1993 chevy blazer
Spark Plug Gap 1993 4.3.035 hi i have a 1993 blazer 4.3 the gap four that is 0.045
As long as the intake matches and you have the computer.
Yes there the same.
3500
4L60E
That would be the 4L60E transmission.
yes it is