Possibly, but it's more likely to be a wheel speed sensor.
faulty circut board replace it
its inside the distributor.
I believe in 93 they had the newer style computer, this eliminated the electronic spark control module.
where is it at
AnswerThe ECM is usually located under the glove box.
How to change the bulbs in the climate control for a 1999 Chevy trailblazer
The ignition control module on a 2000 Blazer with the 4.3 is mounted on the same bracket that the coil is mounted to.
The heater door control on a Blazer can be replaced by purchasing a new one. The heater vent will pop out with a little nudge from a flat tipped screw driver. Then insert the new heater vent door control.
Could be the ESC (Electronic Spark Control) mounted to the center of the firewall under the hood.
Yes!!
how to replace a heater core in a 1997 Chevy blazer
how do i replace a heater core in a 2001 Chevrolet blazer